Natural Science Forum / Physics / Particle Physics / October 2004

I seem to miss a quite fundamental point concerning the mass of a
bound system. When I ask people what makes the mass of the proton, I
always get vague answers as: E=mc2, mass is equivalent to energy, ...
and I always have the feeling that they haven't understood it either.

Now they are bouncing everywhere and won't stop.
What can I do now?

A while ago there was a discussion about nuclear radioactive decay and
how it is an inherently random process. Quantum mechanics avers that,
at some level, there no point in asking what *causes* a nucleus to
decay. In fact, QM forces the abandonment of inner, deterministic cogs

A brief primer on "virtual" particles, for those who are uncomfortable
with the topic.
It's actually an arbitrary line between real and virtual particles.
Real particles are ones that have been around infinitely long and

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I wonder if a blueberry muffin can be faster than light or does it
need another kind of muffin to reach than speed???

I'd like to know what options there are for ensuring that a nuclear
missile doesn't leave the site where it's detonated radioactive after
the blast.
I think with conventional ICBMs the ground where they impact will be

If we push slightly any mass-less object would it reach speed of light,
if not then why does photons reaches C , definelty they are not
triggered at this speed initially and light speed slows down in denser
medium but regains the original speed?

Good evening
Cosmic rays produce pions, which decay over weak interaction. So if i have a
W- , it will (as far es i know) most probably decay in a myon- and a myon
anti neutrino.

Do all neutrinos of the same flavor travel at the same speed?

Can anyone explain how a scintillator works?
As I understand, they are used to detect photons in accelerators.
I'm also interested in things like efficiency, accuracy, etc.
Thanks