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| rec.arts.sf.science | Real and speculative aspects of SF scien | 45,986 messages |
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| Message 44,881 of 45,986 |
| Luke Campbell to MrAnderson |
| Re: Coilgun projectile velocities in spa |
| 15 Mar 17 07:26:56 |
From: lwcamp@gmail.com On Saturday, March 11, 2017 at 3:21:27 PM UTC-8, MrAnderson wrote: > Also, how fast blue laser dissiapate in vacuum? The main issue is diffraction of the light around the laser's aperture http://panoptesv.com/SciFi/LaserDeathRay/Diffraction.html which will depend on the size of the laser's aperture. Luke --- SoupGate-Win32 v1.05 * Origin: you cannot sedate... all the things you hate (1:229/2) |
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