Recent content by NLB

To understand this, you need to understand the difference between p-type and n-type semiconductors. In an n-type semiconductor, there are lots of free electrons in the conduction band, that are free to flow if an electric force pulls on them. These free electrons are caused by the doping of...

Thank you again for your help. Another question, though. In the link you gave me, both functions rR(r) and (rR(r))^2 are plotted, but with no explanation or definition. So, I assumed that rR(r) was the radial probability, and I took the formula of rR(r) and differentiated it with respect to...

Thanks for your reply. I appreciate the information. Very useful. I am asking about the radius at which the maximum of the radial probability of the electron occurs. I am not mixing up two different concepts. This is how the Bohr radius is defined now--as the radius of the maximum of radial...

I am interested in knowing if the inside radius of the inner most part of the electron cloud is a constant versus Z. For example is it always the Bohr radius, or does this inner radius change as a function of Z? What is the experimental evidence?

Hello Jeff, I see this question is almost 2 years old. Did anyone ever answer you?

If 8 MeV/c^2 is the rest mass of the quark, and it goes .9999c, then this is an effective mass of 566 MeV/c^2, for the mass of a single quark. There are three quarks in a proton. This puts the proton mass at 1700 MeV/c^2, or in MKS, the mass of the proton would be 3.03E-27. But we know the...

Bill_K: "I answered this question, but you ignored it. Take the Δp you get from the uncertainty relation and use it to calculate the velocity." Hello Bill, No I directly answered your question. Sorry if you did not realize that. I will give a more detailed reply this time, so there is no...

Hello mfb, Thank you for your reply. Yes, relativistic effects would kick in, but I was just being generous. If we say the maximum speed of the particle is say 1/10 the speed of light, or even 1/100 the speed of light, so that relativistic effects do not come into play, then the product of...

Hello Dreak, thank you for your comment. In other words, you are saying that the particle can exist with an delta-x and a delta-p below the limit of the uncertainty principle, but as long as we do not directly measure x and p simultaneously, then it does not violate uncertainty principle? Is...

As a result of some precise experimental data, we now know that the mass of the quark is not naively 1/3 the mass of the proton. The most recent estimates for the mass of the quark is: Masses of the current quarks: = 2 - 8 MeV/c2 = 1.0 - 1.6 GeV/c2 = 168 - 192 GeV/c2...

May I get in touch with you? If I leave me email address here for you, would you please email me? Would that be OK?

I think you will find that the alpha particle hypothesis is much more likely to product the results you want.

The reference in which I got the 39,000 number was "Neutron Scattering and Absorption Properties" by Norman Holden, dated 2003. There is another one, on-line, at: Here's my reference: http://ie.lbl.gov/ngdata/sig.htm This one looks like 1981. It shows 48,000. Either way, it is huge. Yes...

The shell model is not very successful at explaining thermal n cross sections, as you have observed. No one is disagreeing with you about that. Let me ask you this about your hypothesis: Does your hypothesis make sense for Be7, which has a thermal n cross section of 39,000 barns? Or how...