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DYD B-11
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| When can you start? http://xnxx-xnxx.space/ xnxx stories Researchers built these atomic clocks by trapping thousands of ytterbium atoms at high density. Each ytterbium clock depends on about 10,000 rare-earth atoms cooled to 10 microkelvin, or 10 millionths of a degree above absolute zero. The atoms are trapped in in optical lattice made of laser light. Another laser that 창��혵ticks창��혶 at a the incredible rate of 518 trillion times per second instigates a transition between two energy levels in the atoms. The massive number of atoms is the key to the clocks stability, researchers explained. |
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Arnoldo |
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2019-06-15 10:49:20 |
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