Cosmologic philosophy: Einstein theory proven again (Introduction)

by David Turell , Wednesday, February 16, 2022, 19:08 (1011 days ago) @ David Turell

Using a tiny anatomic clock:

https://www.newscientist.com/article/2308688-most-precise-atomic-clock-shows-einsteins-...

"Physicists have measured time dilation on the smallest scale ever using an atomic clock made of thousands of ultracold atoms formed into a stack of pancake-shaped blobs

"The world’s most precise atomic clock has confirmed that the time dilation predicted by Albert Einstein’s theory of general relativity works on the scale of millimetres.

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"Because the atoms were arranged vertically, Earth’s gravity caused the frequency of oscillations in each group to shift by a different amount, an effect called gravitational redshift. At the top of the clock, a second was measured as 10-19 of a second longer than it was at the bottom. This means if you were to run the clock for the age of the universe – about 14 billion years – it would only be off by 0.1 second, says team member Jun Ye at JILA.

"It is this redshift measurement, calculated to a certainty of 21 decimal places, that was predicted by Einstein’s theory. Previous measurements had observed the redshift over larger scales by comparing separate clocks, but the JILA team measured it in a single clock."

Comment: Theses proofs get boring. Einstein is right.