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|    rec.arts.sf.science    |    Real and speculative aspects of SF scien    |    45,986 messages    |
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|    Message 44,923 of 45,986    |
|    els.dallas@gmail.com to els.d...@gmail.com    |
|    Re: Coilgun projectile velocities in spa    |
|    03 Apr 17 15:52:45    |
      [continued from previous message]              It takes between 6.09 MJ and 6.8 MJ to vaporize 1 kg of steel. So using Luke's       2.5% waste heat number and the higher 6.8 MJ number, then attempting to dump       2.72 GJ into the 10 kg projectile will result in it being vaporized. More       depressing is that at        the quoted inefficiency, attempting to dump over 99 MJ into the 10 kg       projectile will result in it melting.              --- SoupGate-Win32 v1.05        * Origin: you cannot sedate... all the things you hate (1:229/2)    |
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