Picosecond facts for kids
A picosecond is an standard unit of measuring time. It is equal to 10^{−12} of a second. That is one trillionth, or one millionth of one millionth of a second, or 0.000000000001 seconds.
 Notation
 10^{10} seconds is 100 picoseconds.
 10^{9} seconds is 1 nanosecond.
 Examples
 One picosecond is the halflife of a bottom quark.
 Ten picoseconds after the Big Bang, electromagnetism became its own force.
 It takes light about 3.3 picoseconds to travel one millimeter.
 It takes a common 3.0gigahertz computer 3.3 × 100 picoseconds to add two integers together.

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Picosecond Facts for Kids. Kiddle Encyclopedia.