[] 相対性理論はインチキだろう.
270. なかやま[34] gsiCqYLigtw 2024年4月11日 11:00:53 : EouoMhJDSw : ODc4Qm1GYTRjOGM=[1]
Tnime is Absolute (again) ( クリ)　

◎　In relative motion
A spacecraft is moving horizontally in front of an observer. Plane waves of starlight (constant wavelength) is coming from directly above. Regardless of the speed of the spacecraft, time is absolute, with no delay.
◎　In different gravity fields
There is a mirror high up in high tower. Light (constant wavelength) emitted from the ground is reflected by the mirror and returned to the ground. Frequencies measured at these three points are the same (if these are not the same, number of waves on optical pathes will increase or decrease, without limit). Time is absolute, with no delay.
http://www.asyura2.com/0306/idletalk2/msg/1242.html#c270

[] 相対性理論はインチキだろう.
271. なかやま[35] gsiCqYLigtw 2024年4月11日 11:40:57 : EouoMhJDSw : ODc4Qm1GYTRjOGM=[2]
Local Inertial Frame (again) (クリ)

An elevator cabin is in free fall. Imagine mass points placed regularly in the elevator. Vector of inertial force acting on each mass point is the same. Local inertial frame is impossible.

Two elevators are moving apart horizontally. One is in accelerated motion and the other is in non-accelerated motion. By an accelerometer, to tell which one is accelerating is possible. In the elevator with accelerated motion, there is no inertial frame, even locally.
http://www.asyura2.com/0306/idletalk2/msg/1242.html#c271