Convert Shakes to Decades
Convert Shakes (sh) to Decades (dec) instantly and accurately.
Conversion Formula
dec = sh × 3.168873851e-17
About Shakes
A shake = exactly 10 ns (10⁻⁸ s) - the informal unit for fission prompt-neutron generation time, coined at Los Alamos during the Manhattan Project (1943-1945). A prompt-neutron generation in a supercritical core takes ~1-10 shakes; a full explosive chain reaction unfolds over ~50-100 shakes. The name alludes to 'two shakes of a lamb's tail'. Still used in reactor physics and weapons-design calculations. 1 shake = 10 ns.
About Decades
A decade = exactly 10 Gregorian years = 315,569,520 s. Climate scientists compute 10-year running means to remove interannual variability; IPCC reports compare decadal temperature anomalies. Moore's Law predicted ~10× transistor density increase per decade. US Census counts are constitutionally mandated each decade. Cultural periods are colloquially labelled by decade (the 1960s, the 1980s). 1 decade = 10 yr.
Quick Reference Table
| Shakes (sh) | Decades (dec) |
|---|---|
| 1 sh | 3.169 × 10-17 dec |
| 2 sh | 6.338 × 10-17 dec |
| 5 sh | 1.584 × 10-16 dec |
| 10 sh | 3.169 × 10-16 dec |
| 25 sh | 7.922 × 10-16 dec |
| 50 sh | 1.584 × 10-15 dec |
| 100 sh | 3.169 × 10-15 dec |