Recent content by Nesk

In w = ∫F dr, the F dr part is a dot product, i.e., the scalar Fx dx + Fy dy. dr = i dx + j dy is an infinitesimal vector along the path.

Have you considered the horizontal force component's equilibrium condition?

Even a generally well-informed public has an at best superficial understanding of the mechanisms that govern economic systems or other political issues, yet in democracies the public is expected to make critical decisions affecting these issues. It would be quite wrong to say that this approach...

If there is matter in the universe it must necessarily exist, since the premise that there is matter in the universe can only be satisfied if the universe itself is there. This is somewhat tautological, and the answer is based on an interpretation of the term "existence" as synonymous with "to...

GW as in global warming would be my guess. People frequently speak of the risk of possible global warming. It appears to me not as a possibility, but as an observation; temperatures have risen measureably, and the weather is different beyond common variations from what it was like not too...

I did a google on "Boubaki syndrome", and it yielded one single hit - which was this very page. Though I think I'm pretty sure from the discussion provided here what is meant by the term, I'm curious as to whether it is the actual name of the phenomenon? I do not doubt, though, that there are...

Forests host a huge biodiversity, a substantial part of which has yet to be described. This alone justifies preserving forests. One should not let oneself be blinded by one cause so as to let it take precedence over other less discussed but possibly equally important causes. In order to find...

The title "Inequality Question" is thus not entirely wrong, since the solution is an inequality.

More details would certainly be appreciated :)

I too believe this must be the case. In fluid mechanics parameters are frequently described through their volume density.

But physical constants are in no way limited to [0,5] like mathematical constants appear to be. Just consider Planck's constant and Avogadro's number in SI units.

If I remember correctly, the general form of that notation is: u_{x_1 , ..,x_n} \equiv \frac{\partial ^n u}{\partial x_n... \partial x_1}

When you calculate the phonon heat capacity of a solid you assume that the electron contribution is negligible. I believe that this assumption is only viable in some substances. I am not sure whether this means that a substance at a given temperature may have fewer phonon exitacions than one...

Another point is that a supernova may have played a role in "pushing" the gas and dust to produce the local increase in mass density around which the Solar System formed.

"We" note that glaciers that are known to have existed for millennia in a stable form are now melting. "We" note that the Inuit are giving up hunting traditions that have been developed over countless generations, because sea ice is no longer as stable as necessary to sustain the methods used...