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What is a Femtosecond?
millisecond microsecond nanosecond picosecond femptosecond
1/1000 1/1000000 1/1000000000 1/1000000000000 1/1000000000000000
A femtosecond is to a second is what a second is to 32 million years.
In one second, a beam of light travels 186,000 miles, seven times around the Earth, or three quarters of the way to the Moon.
In one femtosecond, light travels 0.3 microns (a fraction of a human hair).

Dwayne Miles
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California Institute of Technology
Office of Public Events (Mail Code) 332-92
Pasadena, California 91125

What is a Femtosecond?
millisecond	microsecond	nanosecond	picosecond	femptosecond
1/1000	1/1000000	1/1000000000	1/1000000000000	1/1000000000000000
A femtosecond is to a second is what a second is to 32 million years.
In one second, a beam of light travels 186,000 miles, seven times around the Earth, or three quarters of the way to the Moon.
In one femtosecond, light travels 0.3 microns (a fraction of a human hair).