To readers and potential answers: I added the tag constrained-dynamics for organisational purposes. One may presume OP is not familiar with this concept. — AccidentalFourierTransform41 secs ago
A while ago Nick Craver explained why Area 51 reputation isn't shown in "Your Communities". However, Area 51 Discussions' reputation shows up:
Since Discussions' reputation is equal to Area 51's, why not just show Discussion's rep next to the Area 51 link?
argh, there is this question in the HNL on Math.OF where all the answers are like "from a physicists point of veiw...", or "physicists would argue that..." and they are all wrong :-/
I'm conscious that this isn't necessarily a research level question, but I've asked this question on mathstackexchange, and received no answer. So I'm trying it here.
A usual mantra in field theories is the assertion that only massless theories can be conformally invariant. By a theory I mean an...
Alternatively, over the course of 150 days answer 150 questions with such brilliant answers that everyone who comes across it feels obligated to upvote - how hard could it be? :P
So, the Uni has a license for Maple that allows everyone to install it, making it a simple download, but for Mathematica, you have to e-mail IT to get it (they must have a limited license or something), so thanks to that incident, I've decided to deal with the hassle and just get mathematica
The masses of electron, proton and neutron (in SI units) are (approx.):
\begin{equation}
m_e=\text{electron mass}=9.109\times 10^{-31}\ \text{kg}
\end{equation}
\begin{equation}
m_p=\text{proton mass}=1.673\times 10^{-27}\ \text{kg}
\end{equation}
\begin{equation}
m_n=\text{neutron mass}=1.675\t...
A while ago Nick Craver explained why Area 51 reputation isn't shown in "Your Communities". However, Area 51 Discussions' reputation shows up:
Since Discussions' reputation is equal to Area 51's, why not just show Discussion's rep next to the Area 51 link?
Given the light spectrum from 400 to 500 nano-meters,
How can I convert all wavelengths in the range to one wavelength of say 450nm?
