Re: Message to Bertie.

On Sat, 9 Nov 2024 14:14:10 +0000, Jim Pennino wrote:

bertietaylor <bertietaylor@myyahoo.com> wrote:

On Sat, 9 Nov 2024 3:54:15 +0000, Jim Pennino wrote:
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bertietaylor <bertietaylor@myyahoo.com> wrote:

On Sat, 9 Nov 2024 0:41:01 +0000, bertietaylor wrote:
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On Fri, 8 Nov 2024 21:29:06 +0000, Jim Pennino wrote:
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bertietaylor <bertietaylor@myyahoo.com> wrote:

On Fri, 8 Nov 2024 16:02:42 +0000, Jim Pennino wrote:
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bertietaylor <bertietaylor@myyahoo.com> wrote:

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<snip old crap>
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Fool, with the low voltage given and its huge mass the momentum of the
armature beats that of most high power rifle bullets.

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Utter nonsense, crackpot.
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Railguns don't have an armature, they fire projectiles through the air,
crackpot.

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The projectile is the armature, of the linear motor that in this case is
the railgun, Penisnino, most extraordinary ignoramus.

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The muzzle energy of the very common 7.62x51mm NATO cartridge is
typically around 3,346 J.

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Weight of bullet is say 7g
Muzzle velocity is 300m/s
So ke is 0.5mv^2=0.5*.007*300^2=.0035*90000=3150J so okay

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The muzzle energy of the very common 5.56x45mm NATO cartridge is
typically around 1756 J.
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What is the muzzle energy of your low speed linear motor, crackpot?5

0.5*4000*1.5^2= 2000*2.25=4500J, Penisnino

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Sorry we made a mistake above, it should be
0.5 * 4 * 1.5^2 = 4.5 J and not 4500J.
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which is greater than 3346J or 3150J or 1756J.

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We were wrong, but in Arindam's railgun design we do not talk of energy
except for efficiency we talk momentum.

Snips by Penisnino here. To repeat
Momentum of rifle bullet is .007 * 300  = 2.1 kg-m/s.
Momentun of Arindam's model railgun bullet is 4* 1.5 ='6 kg-m/s
So Arindam's model new design Railgun gives three times the momentum
than a rifle.
However a rifle bullet even with much less momentum can do extreme
damage as great pressures are involved on impact.
Arindam's rail gun designs are primarily for peaceful and defensive
uses. Certainly Arindam will not be involved in any military outcome
save for Australian interests.

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Railguns, actually ALL guns, are ALWAYS specified in energy as that is
the important parameter and no one cares about momentum, crackpot.

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Moron, ALL guns are specified in terms of *muzzle velocity*

And momentum is directly proportional to muzzle velocity.

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Actually, it is the ammunition that is specified in terms of muzzle
velocity, crackpot.

Fool, for standard ammunition there is a given muzzle velocity for a
particulat gun.
All highly standardized.
In short it is velocity that matters, meaning momentum.
Nobody cares about kinetic energy which is irrelevant for ranging. All
that matters is how far the bullet will go and where. Muzzle velocity
and angle are the key issues. Surely the mafias know that; looks like
Penisnino here couldn't make it there, for his abysmal stupidity.

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<snip remaining babble>