General > General Technical Chat
Is there an app or some technology that can tell us which way we are moving?
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Beamin:
Both novel and technical.

Say we are spinning around the earth
Earth around sun
Sun around milkyway
Milkyway around local group
group around cluster
cluster around super cluster
super cluster relative to CMB or latest map of observable universe.

Would be cool to have an app on your phone that used the gps and compass to tell you which on these scales you were actually moving and how fast. Yes I realize all motion is relative to the observer and we are always at the center but ... I always wanted an arrow and a speedometer to tell me how fast im moving. Sure the earth's rotation of great speed is nothing compared to the earth moving around the milky way or moving toward the great attracter sloan wall... How many miles did I move since I started typing?


TERRA Operative:
What is your reference point?
mzzj:

--- Quote from: Beamin on December 11, 2020, 01:18:14 am ---Both novel and technical.

Say we are spinning around the earth
Earth around sun
Sun around milkyway
Milkyway around local group
group around cluster
cluster around super cluster
super cluster relative to CMB or latest map of observable universe.

Would be cool to have an app on your phone that used the gps and compass to tell you which on these scales you were actually moving and how fast. Yes I realize all motion is relative to the observer and we are always at the center but ... I always wanted an arrow and a speedometer to tell me how fast im moving. Sure the earth's rotation of great speed is nothing compared to the earth moving around the milky way or moving toward the great attracter sloan wall... How many miles did I move since I started typing?

--- End quote ---
https://www.forbes.com/sites/startswithabang/2017/06/16/how-does-earth-move-through-space-now-we-know-on-every-scale/?sh=5a607dea861f

Assuming it took you 5 minutes of typing we have moved about 70 000 miles 

AntiProtonBoy:
This reminds of a cool story. My old boss had a colleague who used to work on early head mounted displays in the 90s. The prototype used laser interferometry via fibre optic cable loops to track delta movements. It was super accurate and had a very fast update time. But there was one problem. They kept seeing a constant drift, which they could not account for. After laboriously debugging the system, they realised the drift was attributed the motion of Earth in space, ie. rotation, and (I think) also orbiting around the sun. How freaky is that?
2N3055:

--- Quote from: TERRA Operative on December 11, 2020, 06:06:19 am ---What is your reference point?

--- End quote ---
:-DD
AHAHAHAHAH that is brilliant!!
Thanks for this, made my day!
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