Convert Shakes to Anomalistic Months
Convert Shakes (sh) to Anomalistic Months (anom.mo) instantly and accurately.
Conversion Formula
anom.mo = sh × 4.200421940e-15
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 Anomalistic Months
The anomalistic month = interval between successive Moon perigees = 27.5546 days = 2,380,713.2 s. Slightly longer than the sidereal month because the Moon's perigee precesses, completing one revolution in ~8.85 years. Governs 'supermoons': a full moon at perigee appears ~14% wider and 30% brighter. Tidal forces at perigee are ~30% stronger than at apogee. 1 anom.mo = 27.5546 d.
Quick Reference Table
| Shakes (sh) | Anomalistic Months (anom.mo) |
|---|---|
| 1 sh | 4.2 × 10-15 anom.mo |
| 2 sh | 8.401 × 10-15 anom.mo |
| 5 sh | 2.1 × 10-14 anom.mo |
| 10 sh | 4.2 × 10-14 anom.mo |
| 25 sh | 1.05 × 10-13 anom.mo |
| 50 sh | 2.1 × 10-13 anom.mo |
| 100 sh | 4.2 × 10-13 anom.mo |