#geometry-and-trigonometry

1 messages · Page 128 of 1

jaunty pine
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well it wasnt that hard but Its really long

autumn swan
jaunty pine
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even though the teacher was giving us the answers-

autumn swan
desert shell
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geometrics proofs 🤤

slim plinth
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I’m not good at

autumn swan
slim plinth
autumn swan
slim plinth
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Do u know CPCTC

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And ASA, SSS, AAA, SAS

desert shell
desert shell
autumn swan
autumn swan
slim plinth
#

Also with circles, and straight lines

daring cedar
#

yeah exactly you dont need to remember all the reference angles

slim plinth
#

Yep

slim plinth
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It’s you write sin and cos on bottom

autumn swan
autumn swan
desert shell
slim plinth
#

Write sin 0,1,2,3,4 and cos 4,3,2,1,0

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And over two

daring cedar
#

no pi is exactly equal to the ratio of a circles diameter to its circumference

slim plinth
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And then take sqrt on all

jaunty pine
daring cedar
jaunty pine
#

oooo geometric proofs

slim plinth
jaunty pine
#

they are so satisfying

autumn swan
slim plinth
#

Write 30,45,60,90

autumn swan
slim plinth
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And you simplify

slim plinth
jaunty pine
slim plinth
#

1,2,3 on sin and cos, 3,2,1 as well

desert shell
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any of u guys in an IB school?

jaunty pine
slim plinth
#

Sin and cos are over two and tan is over 3

jaunty pine
#

when you see that M is the midpoint of EJ so EM is congruent to MJ

slim plinth
#

And take the sqrt and simplify

jaunty pine
#

cbrt better

slim plinth
#

pi/4 radians

autumn swan
slim plinth
#

Thanks to my Landry machine

autumn swan
slim plinth
#

After the trick it would looked like this

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But sin on one row and cos on the bottom

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That’s on my method

daring cedar
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then tan = sin/cos

slim plinth
jaunty pine
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in tan 90 degrees

slim plinth
#

Undefined

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1/0

slim plinth
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Lands on (0,1)

daring cedar
#

like a cross meaning you cant do it

pallid swift
#

Is this true that x = 5.9585

daring cedar
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correct

pallid swift
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Cause it shouls be 5 x tan(50°) because opposite and adjacent

daring cedar
#

5tan(50) = 5.95876...

pallid swift
daring cedar
#

although its not 5.9585 maybe you read your calc wrong

pallid swift
#

Oh i did i think

daring cedar
#

yeah

pallid swift
#

Yeah

daring cedar
#

its 5tan(50) anyways tho good job

pallid swift
#

Thanks :> Im starting to learn how to use trigonometry on triangles so my guided study teach printed me some papers to work on

daring cedar
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thats cool, use the acronym sohcahtoa if you dont already know it

pallid swift
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Yeah i know

daring cedar
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yeah if you know that you should be set tbh

pallid swift
#

Alright

winged oyster
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how do i rotate a point around the origin

marsh marlin
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analytical geometry

winged oyster
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ok

crude raft
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did i do it right 🥹

potent hollow
#

unadulterated genius

shrewd berry
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My mind has been blown

spiral lodge
stuck onyx
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Is this right?

cyan ravine
stuck onyx
cyan ravine
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btw it's a good idea to translate the question to english

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generally

stuck onyx
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uh no, yeah, I haven't learn any math geometry in English. I will try next time

ebon heart
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How do I solve this type of questions? (This is the solution btw) I ironically got a close answer that's 1432.4 after finding tan(2degrees) by first converting it into radians and then mistakenly taking that for it's tan because that's what you do for small radians (and 2degrees is not so small for comparison). Well after all that, I don't know how else to find answer to that equation or should I js rely on the online calculator?

stuck onyx
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Determine by calculation whether the lines passing through points DE and AB are parallel. My answer is no

silent plank
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what's your reasoning for saying no

stuck onyx
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The lines A B and DE are not parallel to each other because the corresponding angles are of different sizes. Translated thro chatGBT

silent plank
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don't recommend using AI for math

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use your own reasoning
which angles on the pic do you think are corresponding?

stuck onyx
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A and E not the same angle B D not the same angle?

silent plank
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the pair A and E aren't corresponding angles
neither is B with D

stuck onyx
#

then my answer NO was right

silent plank
#

what notes are giving you that idea?

silent plank
stuck onyx
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🙁 this is difficult. Grade 7 book question

silent plank
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can you show your notes

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on corresponding angles and parallel line theorems

stuck onyx
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they are in Finnish 😄 brb

quartz bronze
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can someone explain me power of a point

silent plank
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corresponding angles by itself isn't specific to parallel lines
you'd first need to identify the correct pairs of angles (which you did not)
and then determine if those are equal to see if the lines are parallel

stuck onyx
#

Language difficulties... I ask my friend

silent plank
#

the math/diagrams themselves would be the same

stuck onyx
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alright, I be back. I will think about it

silent plank
#

in this topic, you should see
F, C, Z/N
shapes

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corresponding angles would be associated with the F shape

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looking up at your previous problem, you applied corresponding angles correctly there

daring cedar
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Or what

silent plank
daring cedar
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It has to be, right

silent plank
stuck onyx
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There, I used Goodnotes to draw on it BE 50 and AD 59 "Yhdensuuntaiset"=corresponding angles same degrees

silent plank
#

yes, good the pair of green are corresponding
same as the pair of yellow

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are each pair equal?
so are the lines DE and AB parallel?

stuck onyx
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yes

vocal sentinel
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Good teacher

stuck onyx
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This took a while.

pallid swift
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Wait I just realized, could you use trigonometry like (s/2) • tan(54°) in a pentagon to get apothem

pallid swift
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And then from apothem and (s/2) circumradius = √(5.5² + 7.5²)

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R = 9.300537619

sly urchin
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Let H be an arbitrary point inside ∆ABC. Let ∆A'B'C' be the image of ∆ABC under a homothety with center H and an arbitrary ratio k. Let ∆XYZ be the medial triangle of the cevian triangle of H wrt ∆ABC. Prove that ∆A'B'C' and ∆XYZ are perspective.

hollow plank
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Am I trippin?

sly urchin
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I'm trying ||Trig Ceva w/ directed angles|| but it's messy

sly urchin
# hollow plank Am I trippin?

The original problem was:
∆ABC with altitudes AD,BE,CF concurrent at H. M,N,P are the midpoints of AH, BH, CH, resp. Prove the Gauss-Newton line of MFHE, NDHF, PEHD concur

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I generalized it

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So it's a bit messy

hollow plank
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ohh i didnt understand anything btw

sly urchin
hollow plank
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i am kinda dumb

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and in lower grade than the concepts

marsh marlin
sly urchin
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Which is why I generalized it

marsh marlin
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Still looks dense

tough grail
sage wren
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anyone knows how they got the Radius of earth?

exotic yarrow
novel wing
marsh marlin
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In addition we can view it from space and get an estimated result

sage wren
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how they measured the radius before satelites?

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they knew the radius before satelites and it was pretty much accurate

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to what they say it is now

marsh marlin
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I think socrates measured it by doing smth with the sun and its shadow

sage wren
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so he measured elevation angles from earth surface to the sun

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but i tought angles dont curve

sharp girder
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according to my friend in calculus BC:
sinh, cosh, tanh, etc. are all for doing sin, cos, tan, etc. for HYPERBOLIC angles

sage wren
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but thats just a convertion from euclidian geometry

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you can only mathematicaly convert it but it will violate the base principle of an angle

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and also you wouldnt be able to measure it in degrees

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an angle is 2 straight lines meeting at a vertex

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they just give it the name "hyperbolic angle" but is not an angle and cannot be use as an angle measurment

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whole Earth was mapped with latitude longitude from measuring elevation angles to the stars

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they used Polaris the north star from Polaris Zenith (90 degree angle measurement to the North star) and sailed awawy from it until 0 degree angle and thats where they established the equator

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thats how we got the latitude system with degrees

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and Celestial Navigation uses a tool call sextant, you can find your way at sea or navigate the whole earth with that

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There is a Celestial Navigation Almanac (a book) with 57 stars used

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you can find out where you are at sea if you just measure elevation angles to 3 different stars and based on the degrees measured you will draw circles of equal altitude annd find exact locatiom where you are

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they use this tool called sextant

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right angle triangles are used in this

daring cedar
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i have no clue what youre talking ab but that sounds sick

sage wren
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that means the baseline of the angle is straight/ flat

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so sea level flat

daring cedar
sage wren
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yes

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you can use 2 stars

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but for exact location you will use 3 stars

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so 3 circles that intersect

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they use a clock, a sextant and a compass

daring cedar
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whos they?

sage wren
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the mariners

daring cedar
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oh ok

sage wren
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before GPS invented

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but they still have emergency sextants

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in case gps fails

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and some mariners still navigate like that out of passion

daring cedar
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thats cool to know ngl

sage wren
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who latitude system was measured with this method

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yep

daring cedar
#

how does it actually work? what stars? how do they measure the angle? how do they sketch 3 circles?

sage wren
#

they have like a plotting sheet

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the sextant is like a double lense with a arc of protractor you will align the sea level (horizon) to the star view and then read the angle

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you also then calculate the dip angle from eye level to sea level

daring cedar
#

damn thats cool

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interesting bro thanks for sharing

sage wren
#

welcome, hope you realize that this only works because earth is flat. It wouldnt work on a curving earth.

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Elevation angles require a flat baseline

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and we do measure them from sea level and use the to navigate earth

daring cedar
#

you purely believe the earth is flat?

sage wren
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is just how its measured

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measured flat always

daring cedar
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well yeah on a small scale its flat

sage wren
#

at all scales

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from Polaris GP ground position til 0 degree thats 5400 miles flat

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at all scales and all types of measurements

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is measured flat without exception

daring cedar
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are you saying that, from a birds eye view, the earth is a circle

sage wren
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i dont know the shape of earth

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i just know is flat

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flat is an aspect not a shape

daring cedar
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flat implies shape

sage wren
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flat is an aspect

daring cedar
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ok but by saying flat are you describing the earth as a cylinder?

sage wren
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just flat

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could be any shape

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2D

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but it spreads from North

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to South in all directions

daring cedar
#

bro what?

sage wren
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when you point South you dont point down do you?

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you point in a direction

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2D

daring cedar
sage wren
#

the compass is a 2 dimensional tool

daring cedar
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2D implies the earth has no height

sage wren
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its a single directionality

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not curved

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linear distance

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distance is linear

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there is no measured curvature of earth

daring cedar
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well yes, because when you travel or move in a direction you move a distance

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but technically youre moving on an arc of a circle

sage wren
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in the globe model yes

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but not in reality

daring cedar
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yes in reality

sage wren
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in reality we measure earth flat

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in reality there are 0 curve measurments of earth

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Earth us surveyed with triangulation, trilateration and trigonometry

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and linear distances

daring cedar
#

isnt that obvious? there is no curvature because we see everything as flat

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but its actually curved

sage wren
#

a right angle triangle is formed from the ground position of the north star

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and an observer view at a 45 degrees angle

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of the north star

daring cedar
#

we see stuff as flat

sage wren
#

the baseline is flat

daring cedar
#

so its measured as flat

sage wren
#

but we do navigate earth

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using these elevation angle measurements

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you cannot aquire an angle measurment if the baseline of the angle curves

daring cedar
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yes, within eye sight the baseline of the angle is flat

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but if you think theoretically like far enough its curved

sage wren
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so you are saying its flat and then it curves

daring cedar
#

nope

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im saying on an extremely small scale yes its flat

sage wren
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celestial navigation uses circles of equal altitude at extremely big distances thousands of miles and give accurate location

daring cedar
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if you like 500m ahead of you its flat, however 1000km ahead wouldnt be flat

sage wren
#

those are not small distances or scales

daring cedar
#

educate me then im geniunely curious

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how does celestial navagation work

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why does it work

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and how can you represent 3d onto 2d

sage wren
daring cedar
sage wren
sage wren
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you watch it so you know what im talking about here

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and then we can discuss more

daring cedar
#

it doesnt directly pinpoint where things are

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on paper yes where the circles intersect gives a location, but realistically the distance of where the ship actually could be looks like 100s of kms

sage wren
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its accurate

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it uses the latitude longitude system, compass, sextant, clock

daring cedar
#

the point is, if the earth was flat, where does it end? could you just walk off the edge?

sage wren
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just check the video bro

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so we can discuss about the cel nav

marsh marlin
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Flat earth theories are stupid

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Especially considering we have sattellite imagery

daring cedar
#

exactly its impractical

sage wren
daring cedar
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well you said to watch a video attempting to prove the earth is flat

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lol

marsh marlin
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You cant measure a flat earth since it doesnt exist

marsh marlin
sage wren
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the whole earth was measured with elevation angles to the lights in the sky

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you cannot aquire an elevation angle measurment from a curved baseline

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angles dont curve

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we can discuss the measurements and maybe get to a point with them

marsh marlin
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In 3d they do curve

daring cedar
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which is why its not precisely accurate???

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because they do curve

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thats the point

marsh marlin
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In fact we can draw a 90 degree triangle on a sphere

sage wren
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how do you measure the angle in degrees if the baseline curves then?

daring cedar
#

you assume its 2d on a smaller scale

sage wren
#

im talking North till equator scale

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5400 miles

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thats not small scale

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and it still works

daring cedar
#

no where near accurately tho?

sage wren
#

thats how latitude system was created what you mean not accurate

daring cedar
#

not the one we use today probably not

drifting cipher
#

Mercator is inaccurate

sage wren
#

gps is based on surveyed land and cel nav

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gps is cartesian system grid

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derived from latitude and longitude and surveyed lands

daring cedar
#

regardless of gps, if we compare the first ever lat system to todays lat system its probably a lot different

sage wren
#

every 69 miles moving away from North is 1 degree of latitude

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and longitude is measured from latitude

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equator is at 0 degree elevation angle measurment to the North star

marsh marlin
#

we can accurately measure it using sattelite imagery

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all other ways are inefficient

sage wren
#

its measured flat

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by surveyors

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mariners

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and GPS is cartesian system so 2D

daring cedar
#

yeah but is it as accurate as satelite imagery?

sage wren
#

the 3D is only a convertion from 2D

sage wren
#

and believe in the globe

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based on those photos

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but just know that earth is measured flat

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thats how its measured alwyas

daring cedar
#

maybe 3000 years ago yeah

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not now

sage wren
#

but gps is cartesian bro

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and map scales are flat

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cartesian system is 2D

marsh marlin
#

It looks flat sure

sage wren
#

so where is the curve measured?

daring cedar
#

yes bro because on a small scale curvature doesnt matter gravity keeps you on earth why is curvature relevant?

marsh marlin
#

but thats on an incredibly small scale

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Zoom in enough to the earh and it will look flat

sage wren
#

at all scales earth is measured flat

marsh marlin
#

Approximation

sage wren
#

and maps are measured in squared miles

marsh marlin
#

And its an incredibly small difference

sage wren
#

where is the curve in the measurements

marsh marlin
#

We feel like earth is flat

daring cedar
#

this is a waste of time i got an exam tmrw, bro honestly your argument is futile

sage wren
#

okay so we only see the earth as a globe from satelite imagery

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but where are the measured curves?

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there is 0 measured curvature

daring cedar
#

hold on

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is the earth flat?

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yes or no

sage wren
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thats how its measured

daring cedar
#

yes or no

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stop waffling

sage wren
#

yes

daring cedar
#

yes or no

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LOL

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@marsh marlin

sage wren
#

sea level is horizontal

daring cedar
#

time to pack it in

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the earth is flat guys

sage wren
#

elevation and altitude is measured from sea level

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elevation 0

daring cedar
#

blind leading the blind

sage wren
#

sea level is paralel with eye level and surface level and flight level

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altitude is measured perpendicular to sea level

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is not that serious

marsh marlin
#

hm?

sage wren
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i know is hard to grasp it

daring cedar
#

so you said the earth is flat correct?

marsh marlin
#

lmao

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earth is flat?

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we have satellite imagery bro im not repeating ts

sage wren
#

yes because its measured that way

daring cedar
#

if the earth is flat as you said; is the earth is a cylinder? or does it have no height?

marsh marlin
#

Fym measured

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expand

daring cedar
#

scroll up he waffles about it birdy

marsh marlin
#

we can literally dig down into the earth

sage wren
#

any deviation from the horizontal baseline is measured with rise over run

marsh marlin
#

that means its a cylinder

daring cedar
#

hahahha

marsh marlin
#

With your logic

daring cedar
#

so the earth is a cylinder

sage wren
#

we dont measure a cilinder

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we measure it flat

marsh marlin
#

Recently a guy travelled to antartica to prove the earth is round

daring cedar
#

???

marsh marlin
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the sun is always shining there

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that proves the earth is round

sage wren
marsh marlin
#

daring cedar
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no not actually

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bro

sage wren
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then where is the curve? who measured the curve?

daring cedar
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are you stupid?

sage wren
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if earth is curving we should have measurments of that curvature

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but we dont

marsh marlin
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idiot did you not read a single point we stated?

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nice ragebait

sage wren
#

no need to use ad hominem

daring cedar
#

hahaha

marsh marlin
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you and your stupid flat earth ideologies should go to antarctica and see for yourself

daring cedar
#

alr cool think about it like this

sage wren
#

you still failed to give me any measurements of a curve

daring cedar
#

is the length of the base of a triangle equal to the length of the hypotenuse?

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yes or no

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not waffle

sage wren
#

whats the hypotenuse?

daring cedar
#

sorry a right angled triangle

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if you have this

marsh marlin
#

the longest side of a right angle triangle

daring cedar
#

no no but this is key

marsh marlin
#

Yup and place it on a sphere and it will bend

daring cedar
#

is the length of the hypotenuse equal to the length of the base?

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yes or no

sage wren
#

is not

daring cedar
#

ok thank you

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but on a 3d scale from a birds eye view

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the hypotenuse and base have the same length

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point proven

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ggwp

marsh marlin
#

LMAO

sage wren
#

ehat you mean 3d scale?

daring cedar
#

3d mate

sage wren
#

on a globe?

daring cedar
#

(x,y,z)

marsh marlin
#

Dont just speak for the heck of it

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make useful statements

daring cedar
#

i need to go sleep

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this argument is pointless

sage wren
#

you still didnt explain how you can aquire an elevation angle measurement from a curved baseline

marsh marlin
#

Bro

sage wren
#

a 45 degree elevation angle to the north star for example

daring cedar
#

curvature is not measured on small scales, youre travelling in a flat straight line due to gravity, so therefore imagine that occurring as you travel across the earth

sage wren
#

but you can use multiple circles of equal altitude

daring cedar
#

goodnight brother

sage wren
#

so that would be the whole earth

daring cedar
#

we discuss tomorrow

sage wren
#

not a small scale

daring cedar
#

birdy take over gng

daring cedar
#

are you oaky

marsh marlin
sage wren
#

not innacurate

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latitude system is measured in degrees

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in those degrees

marsh marlin
#

cya ryze

daring cedar
#

pinpoint a location from a piece of a4 paper thats 10cm by 10cm over 10000s of kms

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cya bro

sage wren
#

the compass on the phone will give you these measurements too

daring cedar
#

pinpoint a location from a piece of a4 paper thats 30cm by 30cm over 10000s of kms

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how are you managing that?

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you cant

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thats the point

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the error interval is too big

sage wren
#

69 miles is 1 latitude degree

daring cedar
#

stop waffling

daring cedar
#

precisely

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and extremely accurately

sage wren
#

is not about being extremly accurate, is about the thing that it works to navigate the whole earth

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how do you use these elevation angle measurments to navigate earth

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you cannot do it on a curved surface

daring cedar
#

ok so its not accurate, so are you saying, as you stated that this was used to map the earth and is still used today, that the map of the earth is also wrong?

sage wren
#

is very accurate if done properly

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but the earth was already measured

daring cedar
#

classify that precisely

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what does "very" mean

sage wren
#

like 0.5 nautical miles accurate

marsh marlin
#

@sage wren do you agree gravity exists

sage wren
#

Wasnt proven

daring cedar
#

LMFAO

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nah im actually done

sage wren
#

but this is a geometry chat so

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would preffer to talk about measurements

daring cedar
#

@sage wren ok let me ask you this

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what keeps us on earth?

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literally

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when you jump

sage wren
#

density

marsh marlin
daring cedar
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why dont you float away

sage wren
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we are denser than air

marsh marlin
#

That doesnt matter

daring cedar
#

so?

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thats irrelevant lol

marsh marlin
#

if grsvity didnt exist we would all still float away

sage wren
#

thats your claim

daring cedar
#

and wait hold on

sage wren
#

but where is the scientific evidence

marsh marlin
sage wren
#

newton says mass attracts mass

marsh marlin
#

They have rigorous proofs

sage wren
#

clouds have mass and they are not going down

marsh marlin
marsh marlin
sage wren
#

the newtonian gravity says mass attracts mass

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gas is mass too

marsh marlin
#

Yeah its mass is less than gravitys force

sage wren
#

less what?

marsh marlin
#

Ill end off here

daring cedar
#

brother its mass is less

marsh marlin
#

If youd like to continue learn gravity first

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Bro ryze its fine

daring cedar
#

loool

sage wren
#

any evidence you can aqurie an elevation angle measurement from a curved baseline?

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thats what i want to discuss for now

daring cedar
#

alr cool ill end off here too

sage wren
#

if you got anything on these just write here

#

will chat later maybe tomorrow

marsh marlin
#

no we will not

daring cedar
#

we are held to the earth because we are denser than air

sage wren
#

in Cel Nav they do use elevation angles to navigate the oceans and yes an angle is not curving

daring cedar
#

stop tryna talk about that

#

does gravity exist?

#

yes or no

sage wren
#

you tried to change subject to run away from the elevation angle measurement

daring cedar
#

does gravity exist?
yes or no

sage wren
#

so waiting you to adreess that first

daring cedar
#

does gravity exist?
yes or no

#

just answer yes or no

sage wren
#

thats how you measure your elevation angle?

daring cedar
#

brother does gravity exist

#

yes or no

sage wren
#

about gravity?

daring cedar
#

im asking you a simple question

#

does gravity exist

sage wren
#

you have a claim to make?

daring cedar
#

does gravity exist

marsh marlin
#

Because we can prove it simply from gravity

#

Gravity has been proved

daring cedar
#

no waffle does gravity exist

sage wren
#

if you want to support gravity then bring up the scientific method and show how it proved gravity

daring cedar
#

i never said i support it

marsh marlin
#

Therefore you answer yes, then the earth is round
If no, then research gravity

daring cedar
#

im asking you a question

marsh marlin
daring cedar
#

asking a question does not mean i support it

#

simple as

#

does gravity exist?

sage wren
#

gravity as a force that attracts mass no

daring cedar
#

no no

#

stop trying to classify it

#

does gravity exist

#

yes or no

marsh marlin
#

Answer this simple question then we are done

daring cedar
#

you do not need to give a definition or attempt to classify your answer

marsh marlin
#

If you dont answer it we are done

sage wren
#

im not denying things are not falling down

daring cedar
#

never said that

sage wren
#

but not all things go down

marsh marlin
#

no

daring cedar
#

im asking a question

marsh marlin
#

yes or no

daring cedar
#

does gravity exist

#

yes or no

#

one more word

sage wren
#

both Newtonian and Einsteinien gravity were never proven so no, they dont exist

#

just some concepts

daring cedar
#

you do not need to give a definition or attempt to classify your answer

#

you do not need to give a definition or attempt to classify your answer

#

you do not need to give a definition or attempt to classify your answer

#

you do not need to give a definition or attempt to classify your answer

#

yes or no

daring cedar
#

just type no

autumn moat
daring cedar
#

please no classification

sage wren
marsh marlin
#

Stop treating us like scientists

daring cedar
sage wren
daring cedar
#

so no then yeah?

autumn moat
marsh marlin
daring cedar
#

yes or no @sage wren

sage wren
#

Scientific method deals with observing natural phenomena and establishing the cause

daring cedar
#

bro

#

just stop talking

sage wren
#

gravity was never proven

daring cedar
#

so no yeah?

sage wren
#

no

daring cedar
#

no gravity does not exist correct?

autumn moat
sage wren
daring cedar
#

does gravity exist

#

one last time

#

yes or no

autumn moat
daring cedar
sage wren
#

what is gravity for you?

daring cedar
#

does gravity exist

sage wren
#

a force that attracts mass to the center of earth?

daring cedar
#

does gravity exist? yes or no

marsh marlin
#

Answer the quesiton @sage wren

sage wren
daring cedar
#

does gravity exist? yes or no

sage wren
marsh marlin
#

Stop rebuttling and answer the question

daring cedar
#

does gravity exist? yes or no answer only. no waffle allowed

marsh marlin
daring cedar
#

does gravity exist? yes or no answer only. no waffle allowed

sage wren
#

no

daring cedar
#

ggwp

#

goodnight

autumn moat
marsh marlin
#

Cya

daring cedar
#

cya

autumn moat
#

imma dip too

marsh marlin
#

R u in canada by chance

marsh marlin
daring cedar
#

nah uk bro

marsh marlin
#

Alr cya

sage wren
#

Any evidence you can aquire an elevation angle measurement from a curved baseline?

#

Or any evidence of gravity?

autumn moat
sage wren
autumn moat
#

alr

sage wren
#

you chose to use Red herring and ad hominem fallacy instead of showing any evidence

#

I dont want to go into science here guys

#

lets stick to geometry

#

any evidence we can aquire an elevation angle measurements from a curved baseline and use the measurement to navigate earth?

#

We know already that we do navigate and measure earth using this method so any evidence it would work on a globe?

winged oyster
#

i love solving everything through coordinate geometry

hazy harbor
dawn pond
#

Has anyone ever taken a moment to appreciate how beautiful the circle formula is

dawn pond
#

It's quite a gorgeous formula

sage wren
winged oyster
#

unless thats what it is

#

i just pretend its a coordinate plane and plot everything

sage wren
sage wren
#

you will see its flawed

daring sierra
#

everything falls down

#

so uh

#

its true

#

there is gravity!

#

trust

sage wren
#

you just made an observation that things fall down, i asked you to prove the cause of it

sage wren
#

mass attracts mass?

daring sierra
#

hm

#

ig you can say that?

sage wren
#

clouds have mass? helium has mass?

daring sierra
sage wren
#

do you see them going down?

sage wren
daring sierra
#

for example

#

take a magnet as large as the earth

#

how strong do you think it will be?

sage wren
#

we can prove magnets

#

but we need to prove gravity before comparing it to other forces

#

Science uses the scientific method to prove things

#

Scientific method:

  1. Observe natural phenomena ( an event happening in nature)
  2. Question what caused it
  3. hypothesis ( make a guess on what would be the cause)
  4. dependent variable ( the specific factor being measured, tested, or observed in an experiment or study)
  5. independent variable (the specific factor manipulated, changed, or selected by a researcher in an experiment to evaluate its effect on dependent variable)
#

if changes made to the independent variable affects the dependent variable then hypothesis is supported, if no changes are observed in the dependent variable after manipulating the independent variable then hypothesis not supported.

#
  1. Conclusion ( it will always prove a positive or a negative)
#

This is the scientific method, is the empirical way to prove things in nature, gravity was not proven positive with this.

winged oyster
#

or something like that

sage wren
tiny acorn
ripe prairie
#

Can anyone hit me hard with high logic geometry question

daring sierra
tiny acorn
daring sierra
#

distance is more general

tiny acorn
daring sierra
#

what will you do in space?

tiny acorn
#

Exists?

daring sierra
#

you can use height but distance is just a better term

tiny acorn
#

So yeah catshrug

daring sierra
daring sierra
#

we use radius

#

in the gravity formula

#

distance can be used for radius

#

thus

#

distance is better

#

while height can technically be true...

#

i think distance is better

tiny acorn
# daring sierra in the gravity formula

Yes but this is just an intuitive example not full blown math formula, also saying "distance is better bcz its used in formula" is just appeal to authority (guy who wrote it as that)

daring sierra
#

its generality

#

we need to be general for terms

tiny acorn
#

Not general

daring sierra
tiny acorn
#

Ig your right on that part

#

But why would you nitpick some detail like that?

daring sierra
daring sierra
#

confusion not good in science

tiny acorn
daring sierra
#

we must have general term for a thing

tiny acorn
daring sierra
tiny acorn
#

If it works it works duh

daring sierra
#

it definitely is

daring sierra
#

🥺

tiny acorn
daring sierra
#

correction

#

in math and in science

#

the term that is used the most is used

#

most of the terms we use in math can also be considered appeal to authority by your logic

#

you forgot euler?

tiny acorn
#

Also how tf does euler relate here

#

Eulers number is just a name

#

For a number

#

But "height" is also just a name for the distance to the ground smh

#

I just call it that and people just understand it lmao

#

Actually distance is even more confusing than height

#

As distance to what?

daring sierra
#

f(x) is euler's notation

#

i that is used for imaginary number is also euler's notation

#

pi was also influenced by euler

#

euler used 2pi before that

daring sierra
#

YOU define distance

#

distance from earth to sun

#

distance from eiffel tower to the groud

#

anything

#

your argument is baseless

#

i am not attacking

#

so dont take it personally

#

i am just trying to show a logical argument

tiny acorn
# daring sierra distance from earth to sun

Height is implicity distance to ground. There is nothing confusing about it. I think in this case "distance" is more confusing and not appropriate for my example. This is my point and your trying to say that i should use "distance" because its more general.

tiny acorn
#

Generality != usefulness in my case

daring sierra
#

also true

#

but yeah

#

uh

#

i accept it

tiny acorn
#

Ok

daring sierra
#

for other stuffs i think distance is better but relative to groud height is better

daring sierra
#

gravity is just acceleration

#

height is good

daring sierra
hollow lily
#

<@&268886789983436800>

daring sierra
#

not for ALL of the gravitational phenomenon

tiny acorn
#

<@&268886789983436800>

daring sierra
sage wren
daring sierra
#

yey

tiny acorn
sage wren
daring sierra
tiny acorn
daring sierra
tiny acorn
#

We know a force is needed to accelerate shi

daring sierra
tiny acorn
#

And gravity is just the name we gave to such force

daring sierra
sage wren
#

thats how scientific method proves

sage wren
#

also mass does not always attracts mass

#

as you can see the clouds not falling

#

or helium going up

tiny acorn
sage wren
#

Also there is another issue

#

your hypothesis says a force pulling mass to the "Center" of earth

#

that is an assumption that earth is a sphere

#

you need to know the Radius of that sphere

#

how was the Radius measured?

daring sierra
daring sierra
#

earth's gravity is not perfect

#

or wait

#

it is

#

maybe no but yeah

#

you get the point

#

the earth as an overall structure pulls everything down'

sage wren
#

those are just claims, not facts

daring sierra
#

also as for the clouds

daring sierra
#

clouds dont fall because of the rising air

#

you can google it

sage wren
#

Einstein gravity superseded Newtonian gravity

daring sierra
sage wren
daring sierra
#

and it says that earth makes a curvature due to its mass

sage wren
#

an apple dropped from under the water will rise to the surface

#

as you can see there are many examples of mass not attracting mass

daring sierra
#

there are separate phenomenons for those things

sage wren
#

helium is also mass and does not go down

daring sierra
#

same logic as air

#

if an item is light than water

#

it will come up

#

go on drop a heavy stone and see

sage wren
#

yes so did you get my point?

#

mass does not always attracts mass

#

thats the point

daring sierra
#

mass attracts mass

#

however

sage wren
#

can you prove it?

daring sierra
#

your argument is forgetting that other forces exist too

sage wren
#

with the scientific method?

daring sierra
#

show me the method

#

i aint going up to find it

#

alr

#

so uh

#

imma come here after eating food

#

I WILL PROVE YOU WRONG

sage wren
daring sierra
daring sierra
sage wren
daring sierra
#

Alright. Here we go:

  1. Newton observed and though that the old aristotle mechanics was flawed. So he decided to make a better system and used force.
  2. He thought if there is force behind every acceleration. Then what if the same force is acted upon us on earth that we see as a downward push? He called that gravity.
  3. He hypothsized that the same force that he called gravity that is behind the downward pus we feel is also behind the orbit of the earth and pretty much everything held by the sun and the same with the whole universe?
  4. The things that he believed that the dependent variable is g which is the gravitational potential. He hypothsized that g directly proportional to mM/(d squared).
  5. It is clear from the gravitational potential equation that the independent variables are mass and distance.
  6. After the experiments, he concluded that he was in fact right. Gravity really is the thing that pulls us and everything close.
#

oops

#

i accidentally pressed enter

#

@sage wren

#

there

daring sierra
#

imma go enjoy my sweet victory

#

AHAHAHAHHAAH

#

L bozo

sage wren
#

in order to support your hypothesis, your independent variable needs to be manipulated and affect the dependent variable wich in your example it does not

#

also the step 1 is to observe natural phenomena wich is simply things falling to the ground

#

also you cannot include the center of earth without the known Radius of earth

#

that means you are assuming earth is a sphere without proving it

#

your scuentific method example is completely flawed

#

heres how he official scientific method applied to gravity looks like

#
  1. Objects falling to the ground
  2. what caused it
    3.a force pulling mass to center of earth
    4.a measured acceleration rate of maximum 9.8m/s^2
  3. height dropped from,size,weight,shape of object.

Changing the independent variable does not affect the dependent variable.
6. conclusion, hypothesis not supported

#

Also how did they measure the radius of earth? Spoiler alert: they didnt measure any radius

#

@daring sierra

daring sierra
#

it is alreaady proved

#

fym

#

it was known since the ancient times

#

not even joking

sage wren
#

How did they measuee the Radius of earth?

daring sierra
#

TRIGNOMETRYYY

#

there is actually a great video by 3b1b on this

#

it features terry tao too

sage wren
#

any evidence you can do trigonometry on a curved surface?

#

that only works on flat earth

daring sierra
#

watch the vid

sage wren
#

an angle requires 2 straight lines meeting at a vertex

daring sierra
#

I SAID WATCH

#

OR I WILL DISINTEGRATE YOU

sage wren
#

a triangle is 3 lines connecting to form 3 angles with a 180 degrees sum

sage wren
daring sierra
sage wren
#

they didnt they just measured elevation angles

#

you cannot aquire an elevation angle measurement from a curved baseline

sage wren
#

earth must be flat and it is in order for elevation angle measueements to work

daring sierra
#

i need to go

#

uhhh

#

i will tell more about this when i come

#

uhhh

sage wren
#

Any evidence you can aquire an rlevation angle measurement from a curved baseline?

daring cedar
#

Arguing with @sage wren is pointless dont waste your timr

#

Time

sage wren
#

yet you all failed to show evidence of gravity using the scientific method

#

should be easy right? yet i see you have alot of flaws

#

changes made to the independent variable needs to affect the dependent variable in order for hypothesis to be supported.Is very simple.

#

if we are talking science

#

if Not.. then is pseudo science

sage wren
upper karma
#

,w define dissonance

daring cedar
#

8king also, the point is they didnt measure an angle from a curved baseline

#

Youre misunderstanding things

sage wren
#

Cognitive dissonance is the discomfort caused by holding a belief that conflicts with evidence or facts, leading to mental tension or rationalization.

sage wren
daring cedar
#

They did not use a single flat baseline from the north pole to the equator, angle measurements are taken from the local horizon at that position

sage wren
#

so from earth surface then

daring cedar
#

The change in angles over distance is what proves the earth is curved lol

sage wren
#

an angle requires 2 straight lines

#

you got the earth surface and line of sight to a star

#

angle drops due to increasing distance

#

an angle does not curve

sage wren
#

does an angle curve?

daring cedar
#

Are you dumb?

sage wren
#

in celestial navigation, we use the horizontal baseline as part of the angle

#

an angle does not curve

sage wren
daring cedar
#

An angle does use two straight lines and thats exactly whats happening, the line of sight to the star is one straight line, and the other is your local horizontal line, that tangent is straight, not curved. Youre not using the whole earth as a baseline, just the tiny flat bit at your location

#

Im addressing it mate

daring cedar
#

The angle measurement is local, not across the whole earth

sage wren
#

how long is the tiny bit you are using, tell me in distance

#

?

daring cedar
#

There isnt a fixed distance

sage wren
#

approx

daring cedar
#

Its flat locally

sage wren
#

tell me a distance

daring cedar
#

The direction of the tangent at your position changes as you move

sage wren
#

then is not Earth that you are measuring in that case

#

you say your local horizon is flat and then after a distance it curves? 🤣

daring cedar
#

Bro key word

sage wren
daring cedar
#

Locally

sage wren
#

thats a tangent

#

couldnt work

#

you are not measuring earth then

#

a tangent is a point to a sphere

daring cedar
#

Yes imagine that over every single unit of distance

sage wren
#

a line to a sphere touching at a single point

#

thats not a line is a point then

#

can you make an angle from a point and a line?

daring cedar
#

No no let me speak

sage wren
#

you need 2 lines

daring cedar
#

Listen

#

You have two lines and those two lines are measured at every single point on earth so yes it is tangential LOCALLY

#

Locally you smart guy

sage wren
#

Saying that we measure from a tangent plane means we are not measuring from earth surface then

#

you cannot navigate earth using a random angle

#

is not just an angle is an "elevation" angle

#

elevation of surface level

#

measured perpendicular to surface

#

from 90 degrees to 0 in Cel Nav

daring cedar
#

Okay? So youre measuring the elevation angle locally and it changes as you move

sage wren
#

A tangent plane is imaginary.

daring cedar
#

Locally brk

#

Locally

sage wren
#

is a plane in the outter space

#

the only part of a tangent plane is where you are sitting

#

so your feet a point

#

how you you neasure an angle with a point and a line

daring cedar
#

You draw a tangent from where the point is on your foot?

#

Are u dumb?

sage wren
daring cedar
#

The tangent is from the point, the point is not the tangent

sage wren
#

is the tangent line physical?

daring cedar
#

Well no i cant walk on the tangent line and fuck off into space can i mate

sage wren
#

so how do you use a tangent to navigate earth

#

if the tangent is imaginary

#

spreading into outter space

daring cedar
#

Once again, youre using two lines so you can measure the angle

sage wren
#

you are measuring an angle eith an imaginary tangent line stretching into space.

#

then you have no elevation angle measurement of earth

#

do you?

#

you need to use earth surface as part of your baseline of angle in order to navigate earth

#

thats the point of measuring the elevation angle

#

for navigation

#

you are not navigating the tangent line

daring cedar
#

Bro are u dumb?

#

The tangent is at the point you are on the earths surface