Re: railguns

>From: "Oerjan Ohlson" <oerjan.ohlson@telia.com>
>
>Roger Books wrote:
>
> > > Hm. Now I've checked my books at work, and according to them
> > >
> > > 1 kTon TNT = 4.18*10^12 J rather than the
> > >
> > > 1kTon tnt = 6.31*(10**8) J Roger claimed.
> >
> > Sorry, I should know better than to trust net sources.
>
>No problem at all. My data also comes from the 'net originally - that's
>why I had to compare with the other explosives to choose between the
>two values :-/

Just to be pedantic (hey, it's a Friday), it's worth stating that the
4.184 
GJ value is the energy released by one _short_ ton (2000lb) of TNT. I'd 
guess that by the "current" era in FT time, short and long tons would be
as 
uncommon as the barleycorn (1/3 inch) is now, and the only ton(ne) would
be 
1000kg.

Robert (who likes easy numbers)

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