bern clock tower einstein
https://www.aip.org/history/exhibits/einstein/ae15.htmこのページを訳すDowntown Bern, Switzerland. If you are moving away from a clock and look back at it, the light you see must catch up with you. If your motion is near the speed of light, the clock you see will be slow. Einstein recognized in this a clue to the ...
m.teachastronomy.com/astropedia/.../Einsteins-Theory-of-RelativityThe first thought experiment has to do with time and stems from a thought Einstein had while riding home in a streetcar in Bern. He saw the clock tower passing behind him and wondered how the clock would appear as the streetcar moved ...