RE: Earth-is-stationary Proofs
April 6, 2015 at 11:50 am
(This post was last modified: April 6, 2015 at 11:52 am by The Grand Nudger.)
(April 5, 2015 at 5:10 pm)AFTT47 Wrote: I used to wonder the same when I was 5. If I dropped something in the back of a car going 60 mph, why was it not immediately pressed against the seat back? I didn't get my answer until I was a teen when I read popular books about relativity. It's understandable that an adult not into science might wonder the same thing but once explained to them, it should be clear. If it is not, they do NOT require our help. They require the help of a neurosurgeon.
Hehehe, I just -have- to point out...that's inertia...not relativity... That's (similar to)a thought experiment designed to express relativity...but ah...yeah. The ball has been traveling -with- you...and so carries inertia. If your vehicle was long and tall enough..btw....that -would- happen. Not suddenly, but in an ever attenuating arc. The use of the word relative here - as in. "the arc will be determined by the relative difference in velocity over time between two objects starting from identical initial conditions" - is colloquial, not as in General Relativity.
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