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May
16
comment Alpha particle in vacuum
@surelyourejoking tritium. en.wikipedia.org/wiki/Tritium
May
16
comment How to create a vaccum tube & produce electron beam
to see the difficulties of generating a vacuum have a look youtube.com/watch?v=sx5BW-aAR1I
May
16
revised Alpha particle in vacuum
extension after choicing
May
16
comment Alpha particle in vacuum
Decay of a neutron happens when it is energetically possible, i.e. the decay fragments are more bound than the nucleus that decays via neutron decay. (beta-). There is no such case for the alpha and that is why it is stable. Proton decay depending on the new theory, would happen through exchanges of new, non standard model, particles within the proton, in the quark gluon soup it contains. Have a look at the diagram in my answer here physics.stackexchange.com/questions/79064/… .
May
15
comment If proton spin emergence from quarks and gluons is mysterious, why is silver atom spin not?
look at equation 1 here int.washington.edu/talks/WorkShops/int_14_55W/People/Zhao_Y/… . The goal is to justify the sum rule and it seems still a goal.
May
15
comment If proton spin emergence from quarks and gluons is mysterious, why is silver atom spin not?
if you google "lattice qcd and the spin of the proton" you will see that it is an active area of research.
May
15
revised What minimum energy is required to create tracks in a cloud chamber?
clarification
May
15
answered Do the outer gas planets radiate their mass?
May
15
comment How would an atom behave (in terms of atomic particles) if the electrons were much heavier than the nucleus?
The calculations are done in a system where the nucleus is at rest and the electron in motion, like one planet around a sun at rest system, thus only the charge is important . The mass of the electron enters because of kinematics. This is the simplest frame. If the center of mass of eletron+nucleus were used the mass of the nucleus would enter with more complicated formulae. This would not change the relative distance (r) between electron and nucleus. In central potential problems the simplest system to use for solving is where the source of the potential is at rest.
May
14
revised How would an atom behave (in terms of atomic particles) if the electrons were much heavier than the nucleus?
clarification
May
14
answered How would an atom behave (in terms of atomic particles) if the electrons were much heavier than the nucleus?
May
14
comment What minimum energy is required to create tracks in a cloud chamber?
@mmesser314 3 cm according to the link I gave
May
14
revised What minimum energy is required to create tracks in a cloud chamber?
correction after comment
May
14
comment What minimum energy is required to create tracks in a cloud chamber?
@jaromrax , thanks, I was too lazy to check. will do now
May
14
comment What minimum energy is required to create tracks in a cloud chamber?
@CuriousOne you might be surprised at how many basements exist, there are locations where there are two basements. I am not asking for anticoincidence , but for the use of logic. I just want to draw attention that a cloud chamber will show tracks anyway, Fukishima or not. It seems to me you fast read my posts and fill in the blanks your create.
May
14
revised What minimum energy is required to create tracks in a cloud chamber?
deleted 3 characters in body
May
14
answered What minimum energy is required to create tracks in a cloud chamber?
May
13
awarded  Enlightened
May
13
awarded  Nice Answer
May
13
revised Classical and quantum systems
added 78 characters in body