Heiko Burkhardt: One second from my life. Baltic Sea, Germany, August 2015 Eine Sekunde ist das 9 192 631 770-fache der Periodendauer der dem Übergang zwischen den beiden Hyperfeinstrukturni The second (of atomic time) is the duration of 9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium-133 atom. Секунда есть время, равное 9 192 631 770 периодам излучения... Перейти к записи |