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23 godz. temu · Cesium vibrates 9,192,631,770 times per second while strontium vibrates 429 trillion times per second. To measure these momentary vibrations, light waves were shone at strontium atoms in a vacuum chamber of gas. With the new atomic clock in operation, the world's scientific community is ready to redefine the basic unit of a second, used since 1967.
23 godz. temu · The Ultimate Fighting Championship (UFC) is an American mixed martial arts (MMA) promotion company based in Las Vegas, Nevada.It is owned and operated by TKO Group Holdings, a majority owned subsidiary of Endeavor Group Holdings. It is the largest MMA promotion in the world as of 2023. It produces events worldwide that showcase 11 weight divisions (eight men's and three women's) and abides by ...
23 godz. temu · Albert Francis "Al" Simmons, better known as Spawn, is an antihero appearing in a monthly comic book of the same name published by American company Image Comics, as well as in a number of films, television series, and video game adaptations set in the Image Universe.Created by Todd McFarlane, Spawn first appeared in Spawn #1 (May 1992).. Simmons is a mercenary who died and went to Hell for his ...
