I was under the impression that when a particle passes the Coulomb barrier, it releases it's binding energy and enters the nucleus. The mass defect is the summation of the released binding energies of the nucleons in an atom. For instance the mass defect is the difference in mass between an...
I remember the eqn for the microscopic cross section for neutron absorption in u235 is corrected inversely for an increase in speed (along with the [u235] and the thermal neutron flux) is the annihilation cross section eqn similar then?
I remember alphas as the worst type of ionizing radiation because of the net positive charge. The 2 He 4 with a +2 charge. An alpha is so ionizing it can't make it through a sheet of paper. So it would reason that after the decay the ejected alpha would quickly strip the electrons from somewhere.
During annihilation the positron and electron both emit photons before the actual annihilation in the process of bremsstrahlung as the circle each other. Why is that?
There is chart of nucleides that shows the radioactive isotopes of the elements. In the chart you can literally draw a line through the stable isotopes. It also tells you how the isotopes usually decay and their half lives. If I remember correctly the manner of decay is pretty constant for...
I know all about security clearances, had one before. What I have on my record is possession of a controlled substance penalty group one less than one gram (state jail felony in Texas). I also have a couple of class c misdemeanors. I got in trouble in the navy and got an other than...
I have always wanted to get a college education in physics or quantumn mechanics or the like. I have been through the navy nuke program and I am intelligent. What holds me back is that I have made some bad choices and have a record now. I am wondering if I am wasting my time wanting to get an...
New question: with m theory they look to higher dimensions to be able to include gravity. With relativity relying on four dimensional coordination, if we do discover an additional dimension, how will that impact the relativistic equations?
I'm not a great scientist or math guru, I was in the naval nuclear power program and only pursue physics as a hobby. My question is this: according to Einstein gravity results from the curvature of space. If that is so wouldn't it be reasonable to say that gravity is an effect resulting from...