Define Ma, the mass raised above the atmosphere by human activity. (shuttles,
satellites, probes, etc). The tendency to do so is the derivative, ie,
d(Ma)/dt
I invite anyone with the required data and a strong interest in space to
look up the numbers and provide a yearly table, starting with Sputnik.
There are actually a series of derivatives here:
d(Ma)/dt - Mass into LEO and beyond
d(Mtev)/dt - Mass beyond Terran Escape Velocity (tev)
d(Msev)/dt - Ditto, Solar Escape Velocity
d(Mgev)/dt - Ditto, Galactic Escape Velocity
d(Mlgev)/dt -
d(Mu)/dt -
The last two are left as exercises for the reader....
For SETI enthusiasts, there is d(b)/dt, where b is bits....
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| Hara Ra <harara@shamanics.com> |
| Box 8334 Santa Cruz, CA 95061 |
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