http://news.poseidon-us.com/TJKJ9v
NIST Time and Frequency Division’s annual seminar covers precision clocks and oscillators, atomic frequency standards, rf and optical synchronization, optical oscillators, quantum information, optical cooling and heating; making precise frequency
http://news.poseidon-us.com/TJKJ9v
http://news.poseidon-us.com/TJKJ9v