Re: [LoGH] The gearheads attack =)
Josh Yuan (jjyuan@yahoo.com)
Fri, 13 Oct 2000 16:15:21 -0700 (PDT)
Darn... maybe I was thinking MW hour. Assuming 1
shot/hour at 1 sec duration. That should give u the
gigajoules =). Shot once and recharge for a hour. If
not, look like science didn't advance that much in a
1000 years...in the LoGH universe. Or that beam isn't
good for heating frozen dinners.
--- Walter Amos wrote:
> On Thu, 12 Oct 2000, Josh Yuan wrote:
>
> > 120 MW = a few hundred gigajoules of energy.(300~
> ?,
> > physics major with the W->J conversion?) So even
> if
> > the beam lost 95% of its energy at max range, that
> is
> > still a few gigajoules of energy. I am assuming a
> 1
> > sec firing period.
>
> Remember: POWER = ENERGY / unit time! Thus your
> above conversion W->J
> isn't quite correct, since Watts are a unit of
> Power, and Joules are a
> unit of energy. In fact, by definition, 1 Watt = 1
> Joule/second!
>
> (...oh, I overlooked that you said a 1-second firing
> period...
> anyway... your joules estimate is incorrect)
>
> 120MW = 120 MegaWatts = 1.2x10^8 Watts = 120 million
> Joule/second,
> = 0.12 gigaJoule/sec
>
> Your handy-dandy Energy and Power units conversion
> chart:
>
> 1 Joule = 10^7 erg = 0.239 calorie = 0.738 ft.lbs =
> 2.78x10^-7 kW.hours
>
> 1 electron-Volt (eV) = 1.6x10^-19 Joule = 1.6x10^-12
> erg
>
> 1 horsepower = 746 Watts = 550 ft.lb/sec
>
> And, for those wanting to calculate nuclear yields,
> here is the energy
> equivalence of mass according to E=mc^2:
>
> 1 kg = 8.897x10^16 Joule
>
> ...so if I could find the amount of energy released
> per ton of TNT
> explosion, I could work out the number of Megatons
> per unit mass of
> total matter conversion (so you could say an X
> pounds antimatter bomb
> would yield Y Megatons of energy)...
>
>
==============================================================================
> "Zu jeder Zeit, an jeder (sic) Ort, bleibt das Tun
> | Walter Amos
> der Menschen das gleiche..." - Galactic Heroes II
> | amos(at)sedl.org
>
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