To measure the frequency stability of this optical clock, two identical diode lasers were frequency-stabilized onto enhanced-absorption sub-Doppler resonances. The influence of key parameters on ...

That Casimir Markievicz exhibition (Diary, April 23rd) reminded me in passing how dependent the upper classes of these islands used to be on what grammarians call “degree adverbs”. Witness a ...

She is a FINRA Series 7, 63, and 66 license holder. Sydney Saporito / Investopedia A frequency distribution visually represents the number of times something is observed and how often it occurs.