Femtosecond to Shake Converter
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How to Convert Femtosecond to Shake
To convert fs to seconds: multiply by 10⁻¹⁵. To convert fs to picoseconds: divide by 1,000.
1 fs = 10⁻¹⁵ s = 0.001 ps = 1,000 as. Light travels about 0.3 µm in one femtosecond.
For example, 1 Femtosecond (fs) = 1.000000e-7 Shake (shake).
Femtosecond to Shake — Common Values
| Femtosecond (fs) | Shake (shake) |
|---|---|
| 0.1 | 1.000000e-8 |
| 0.5 | 5.000000e-8 |
| 1 | 1.000000e-7 |
| 2 | 2.000000e-7 |
| 5 | 5.000000e-7 |
| 10 | 0.000001 |
| 25 | 0.0000025 |
| 50 | 0.000005 |
| 100 | 0.00001 |
| 500 | 0.00005 |
| 1000 | 0.0001 |
About Femtosecond (fs)
Definition
The femtosecond is a unit of time equal to 10⁻¹⁵ seconds — one quadrillionth of a second.
Mathematical Relationship
1 fs = 10⁻¹⁵ s = 0.001 ps = 1,000 as. Light travels about 0.3 µm in one femtosecond.
Conversion Formula
To convert fs to seconds: multiply by 10⁻¹⁵. To convert fs to picoseconds: divide by 1,000.
Practical Applications
LASIK eye surgery uses femtosecond lasers. Also used in precision micro-machining and optical frequency combs.
Interesting Facts
A femtosecond is to one second as one second is to about 31.7 million years. The fastest chemical reactions occur on femtosecond timescales.
Common Mistakes
Confusing femtoseconds with picoseconds. Remember: fs is 1,000× shorter than ps.
Educational Tips
Ahmed Zewail's Nobel-winning work proved we can 'photograph' chemical reactions happening in femtoseconds using ultrafast laser pulses.
About Shake (shake)
Definition
A shake is an informal unit of time equal to 10 nanoseconds (10⁻⁸ seconds), used in nuclear physics.
Mathematical Relationship
1 shake = 10 ns = 10⁻⁸ s = 10,000 ps. A nuclear fission event takes about 1 shake.
Conversion Formula
To convert shakes to seconds: multiply by 10⁻⁸. To nanoseconds: multiply by 10.
Practical Applications
Timing nuclear chain reactions, modeling neutron transport in reactors, and nuclear weapon physics calculations.
Interesting Facts
In a nuclear explosion, the chain reaction is complete in about 50–60 shakes (500–600 ns). The name reflects the era's dark humor.
Common Mistakes
Not recognizing 'shake' as a real unit. It's informal but precisely defined and still used in nuclear engineering.
Educational Tips
A 'shake' = 10 nanoseconds. It was invented at Los Alamos to make nuclear timing calculations easier — humor in extreme circumstances.