the.com/second
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means A second is the basic unit of time equal to one-sixtieth of a minute, or it can mean the one coming after the first in order or rank, or to formally support a motion.
from From Latin 'secundus,' meaning 'following' or 'next' — literally that which 'follows' the first (rooted in 'sequi,' to follow, also behind 'sequence' and 'second' as a verb). The time unit comes from medieval Latin 'secunda minuta,' the 'second small part' of an hour: the hour was first divided into sixty 'minute' (small) parts, then each of those divided again — the second division, hence 'second.'
- atomic def
- 9,192,631,770 vibrations of a cesium atom
- leap seconds
- 27 added since 1972 to match Earth
- light speed
- Light circles Earth seven times per second
- slowing spin
- Earth's day grows longer, stealing your seconds
- heartbeat
- Roughly one human heart beats per second
second place finish — hillary clinton lost the 2016 us presidential election to donald trump despite winning the popular vote by 2.9 million votes
second law of thermodynamics — entropy in an isolated system always increases, formulated by clausius and boltzmann in the 1850s-1870s
second hand smoke — passive smoking exposure causes 1.2 million deaths annually according to who estimates