- 【9169】 名前：Ramon：2022/6/22 (Wed) 20:05:06：kraig2c@aol.com
- I'd like to speak to someone about a mortgage https://granodesal.com/levitra-sublinguale-janj isosorbide dinitrate 5 mg sublingual tablet Like other atomic clocks, the new ytterbium clocks rely upon cooling atoms down to near absolute zero. The atoms, frozen to just 10 millionths of a degree above absolute zero, are suspended in an optical lattice framework. A laser that "ticks" 518 trillion times per second provokes a measurable transition between energy levels in the atoms, of which there are about 10,000. The large number of atoms is key to the clocks' high stability, the NIST said.
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