swansont

To recover some of the energy used in walking. I also recall reading about a backpack frame that recovered energy from hiking, and could be used to charge batteries. It was initially aimed at the military market because of the large weight in batteries the average soldier carries into battle. The body does generate of order 100 W (or 340 Btu/hour), so you could conceivably slap some thermoelectric devices on someone and generate some electricity that way, too. But humans overall are really inefficient sources of energy (especially when you are using meat as a food), so if it's not wasted energy you're trying to grab, you're often better off burning the food directly in some kind of engine rather than harnessing human labor.

But by the same token, in some places the population was 15% or higher. And as far as I can find, there were no immigration laws were in place back then that would make a "legal vs illegal immigration" distinction relevant. According to Wiki, the first one (after Naturalization Act of 1790) was passed in 1882, the Chinese exclusion act.

Well, first of all, there's congressional immunity (it's in the Constitution, and still gets used). And many laws have had self-exemption clauses written into them. So when I read statements like "Some believe the Hill reformed itself in 1995 when it passed the Congressional Accountability Act to end its exemptions from civil service rules. Congress even set up an Office of Compliance to enforce the new rules. But it all was a sham. Congress carefully forgot to end its self-exemption from the 1989 Whistleblower Protection Act." from here I have to think the exemptions are still around.

How can that be? Puerto Ricans are US citizens.

Unfortunately, AFAIK federal elected officials are made exempt from many of the laws that they pass. But do I consider not being able to pronounce "nuclear" to be in the "high crimes and misdemeanors" category.

If I had to venture a guess, I'd say that the 7:1 describes the purity of the nuclear polarization, since you'd have thermal noise disrupting the orientation of some of the atoms. This a temperature-dependent phenomenon for a given field strength; I think this dismisses your hypothesis right there.

I had thought that confinement and asymptotic freedom were descriptions of the same thing, applied at different values/scales of r. (Haven't read Marlon. I picked up most of my nuclear/particle physics on the streetcorner, but thought I was on safe ground here. My mistake.)

You have to look at the whole, though, and not just one example. It's not a magnetic interaction, and I don't think you can explain the weak interaction (below the electroweak unfication threshold) as a magnetic phenomenon.

It's called asymptotic freedom and IIRC has to do with the color charge of the gluons. more basic stuff here, and the wiki entry discusses the antiscreening of the color charge when virtual quark/antiquark pairs are present.

The electron spin is correlated with the velocity, but you don't get both orientations, you only get one. That's the issue. The magnetic field polarizes the atoms. If parity were conserved, there would be no preference for N vs S.

The momentum is small, meaning that the deBroglie wavelength is large; you can't discern individual atoms. Because of the low temperature they have condensed into the ground state (being Bosons, they can all be in one state) of the trapping potential, so you have coherent behavior — the atoms will behave in ways similar to laser light.

Original? That's dated a few weeks ago. Blacklight Power has been around for several years. It's not a joke, though it is crackpot physics.

I don't think that's enough to solve the problem. The torque depends on B, too, and you can't get I without R.

T = IABsin(theta), equivalent to your last equation. If you want to solve this you would need to know the moment of inertia of the system, since T=I(alpha). Then it's just a rotational kinematics problem.

It's reliable (though the quality of the site itself might not be; can't tell without looking at the site). The realization of a BEC won the 2001 Nobel prize in physics for Ketterle, Cornell and Wieman.

Depends on how you're using the term inertia. An object at rest cannot feel a centripetal force. An object can turn without slowing down.

You starvelling, you eel-skin, you dried neat's-tongue, you bull's-pizzle, you stock-fish--O for breath to utter what is like thee!-you tailor's-yard, you sheath, you bow-case, you vile standing tuck! Taken from: Henry IV, part I Shakespearean Insult Generator ... (hmmm ... pangloss.com) I'll have to point this link out to people I know in the Boulder area, and bone up on my Willy insults next time I visit NIST.

Are Shakespearean insults tactless, or are they cultural? [Thou] appeareth nothing to me but a foul and pestilent congregation of vapours. (Hamlet)

Less the weight of the air, of course. The bouyance is the difference between the weight of the object and the weight of the displaced water. The mass of that air will be of order 50 grams, compared to the ~35 kg of mass of the water.

Post your work if you'd like for me/us to double-check it.

Yes, because it has a high permeability. But the construction specs called for concrete, though they were free to pack it with rebar. They also called for ~5m separation from the data conduits, so we had them move the power line further away.

Are there actually black color centers, or is that the sensation of no signal at all?