Sujet : Re: Message to Bertie.
De : bertietaylor (at) *nospam* myyahoo.com (bertietaylor)
Groupes : sci.physicsDate : 09. Nov 2024, 09:59:14
Autres entêtes
Organisation : novaBBS
Message-ID : <5fe71d9cea384745c8ebdef999fa3d40@www.novabbs.com>
References : 1 2 3 4 5 6 7 8 9 10 11
User-Agent : Rocksolid Light
On Sat, 9 Nov 2024 3:54:15 +0000, Jim Pennino wrote:
bertietaylor <bertietaylor@myyahoo.com> wrote:
On Sat, 9 Nov 2024 0:41:01 +0000, bertietaylor wrote:
>
On Fri, 8 Nov 2024 21:29:06 +0000, Jim Pennino wrote:
>
bertietaylor <bertietaylor@myyahoo.com> wrote:
On Fri, 8 Nov 2024 16:02:42 +0000, Jim Pennino wrote:
>
bertietaylor <bertietaylor@myyahoo.com> wrote:
>
<snip old crap>
>
Fool, with the low voltage given and its huge mass the momentum of the
armature beats that of most high power rifle bullets.
>
Utter nonsense, crackpot.
>
Railguns don't have an armature, they fire projectiles through the air,
crackpot.
>
The projectile is the armature, of the linear motor that in this case is
the railgun, Penisnino, most extraordinary ignoramus.
>
The muzzle energy of the very common 7.62x51mm NATO cartridge is
typically around 3,346 J.
>
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
>
The muzzle energy of the very common 5.56x45mm NATO cartridge is
typically around 1756 J.
>
What is the muzzle energy of your low speed linear motor, crackpot?5
0.5*4000*1.5^2= 2000*2.25=4500J, Penisnino
>
Sorry we made a mistake above, it should be
0.5 * 4 * 1.5^2 = 4.5 J and not 4500J.
>
which is greater than 3346J or 3150J or 1756J.
>
We were wrong, but in Arindam's railgun design we do not talk of energy
except for efficiency we talk momentum.
>
Railguns, actually ALL guns, are ALWAYS specified in energy as that is
the important parameter and no one cares about momentum, crackpot.
Moron, ALL guns are specified in terms of *muzzle velocity* for a
particular type of bullet, that is they are specified in terms of
momentum, not energy. Idiot. Momentum = mass * velocity, so it is
velocity that is the key to decide how far the bullet will go.
In Arindam's gun-motor the bullet imparts its momentum to the whole
motor, making it go forward, as the force causing the momentum does not
have an equal and opposite reaction.
Arindam;s 2 second video thus not only demonstrates the working of a new
design rail gun with heavy armature and low voltage; it also proves the
fact that the so-called Lorenz force accelerating the armature does not
have an equal and opposite reaction. That is the discovery as important
as radioactivity, electricity, wheel, fire, etc.
Had the world that matters not been entirely composed of penis*, Arindam
would have got the recognition he deserves.
As it is, he is rather tired of them, and keeps himself aloof from those
creatures.
Woof-woof
Bertietaylor (Arindam's celestial cyberdoggies, his best friends,
teaching physics to a dull world, hopefully not entirely corrupt and
indolent population; someone someday may just possibly perhaps be found
brave enough to accept the obvious truth in his 2-sec video showing
inertia violation, as opposed to remaining wilfully braindead thanks to
fear, propaganda and academic training)
>
<snip remaining babble unread>
Typical for the coward.