/sci/ - Science & Math

>>15071080
GPS satellites are both moving fast (time slows down) (Special Relativity SR) AND further away from Earths gravity (time speeds up) (General Relativity GR).
Thus the need to slow the GPS clocks down from 10.23MHz to 10.22999999543MHz in order to negate both the SR and GR effects of relativity.

https://en.wikipedia.org/wiki/Error_analysis_for_the_Global_Positioning_System#Relativity

>>14861585

YOU: I stood on top of my house and the world was STILL flat!
Therefore the world is FLAT!

>>14504583
>whats the best refutation of flat earth?

GPS
Have them explain why GPS satellite's atomic clock needs to run slightly slower than the ones on Earth (answer relativistic time effects)

Hey sci, if satellites exist then why aren't there any images of earth from space?

>>5869832
That is why sattelites are covered in reflective foil.

Lets just say i have money to blow and i saw
"Launch your own satellite for US$8000"

I'm happy enough just to put a decent camera set up on it so i can view earth and space from my own home.

What are some other features i should look into before i launch this bad boy?

A satellite moves in a circular orbit around the Earth at a speed of 6500 m/s. The Earth's radius is 6.37*10^6 m and has a mass of 5.98*10624 kg. Determine the satellite's altitude above the surface of the Earth.

A question for you /sci/
Can a satellite be placed in a geostationary orbit over a point not on the equator? For example orbiting above a specific city.
Is it possible or not? If not why not?

How fast does information travel through space?