XPost: sci.physics
From: jl@glen--canyon.com
On 10 Feb 2026 21:58:30 GMT, ram@zedat.fu-berlin.de (Stefan Ram)
wrote:
>john larkin wrote or quoted:
>>Two gamma rays (zero mass total) can collide to produce a particle
>>pair (which has mass.)
>
> Let's call the momenta of the two photons p0 and p1.
>
> We may assume p1 = -p0 as the two photons are moving towards
> each other from opposite directions. Let's call the momentum
> of the system of these two photons "p", then we have:
>
>p = p0 + p1 = p0 +( -p0 )= p0 - p0 = 0
>
> . Let's call the energy of this pair "E" and its mass "m". From
>
>E^2 = m^2 + p^2
>
> (in units with c=1) and
>
>p = 0
>
> , we get,
>
>E^2 = m^2
>
> for the pair. I.e., all its energy is mass. And this is the
> mass the particle pair has after the collision.
>
>Newsgroups: sci.electronics.design,sci.physics
>Followup-To: sci.physics
>Subject changed.
>
The gamma rays had no gravitational effect on the rest of the mass in
the universe, up until the instant that they collided to form a
particle pair. Then a gravitational object magically appeared.
Does't that create a spherical, symmetric, expanding bubble of
gravity?
I'm just an engineer, but I think this is real. People say it's not
technically possible, or that the efffect is too small to worry about,
or some other excuse for not saying that it could happen.
There is an electrical equivalent. A metal sphere could suddenly
become charged, and it would create a symmetric e-field pulse that
expands at the speed of light, like a wave, but it isn't
electromagnetic.
I guess that you can't make an antenna that radiates em waves
symmetrically in all directions.
John Larkin
Highland Tech Glen Canyon Design Center
Lunatic Fringe Electronics
--- SoupGate-Win32 v1.05
* Origin: you cannot sedate... all the things you hate (1:229/2)
|
