Convert Shakes to Draconic Months
Convert Shakes (sh) to Draconic Months (drac.mo) instantly and accurately.
Conversion Formula
drac.mo = sh × 4.253263451e-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 Draconic Months
The draconic (nodical) month = 27.2122 days = 2,351,135.8 s - the interval between successive Moon passages through the same orbital node. Named from the Latin 'draco' (dragon): eclipses only occur near the nodes, where the Moon can align with the Sun or Earth's shadow. The Saros cycle (18 yr 11 d) equals ~242 draconic months, enabling eclipse sequence forecasting. 1 drac.mo = 27.2122 d.
Quick Reference Table
| Shakes (sh) | Draconic Months (drac.mo) |
|---|---|
| 1 sh | 4.253 × 10-15 drac.mo |
| 2 sh | 8.507 × 10-15 drac.mo |
| 5 sh | 2.127 × 10-14 drac.mo |
| 10 sh | 4.253 × 10-14 drac.mo |
| 25 sh | 1.063 × 10-13 drac.mo |
| 50 sh | 2.127 × 10-13 drac.mo |
| 100 sh | 4.253 × 10-13 drac.mo |