swansont

Annoyed by the professor of anatomy who told racy stories during class, a group of coeds decided that the next time he started to tell one they would all rise and leave the room in protest. The professor, however, got wind of their scheme just before class the following day, so he bided his time: then, halfway through the lecture, he began. "They say there is quite a shortage of prostitutes in France . . ." The girls looked at one another, arose, and started for the door. "Young ladies," said the professor, "the next plane doesn't leave until tomorrow afternoon."

I only scanned the article, but they don't appear to have considered the possibility that the plane wasn't level at impact. All of the drawings show, and calculations seem to assume, a level plane. In their "(Don't) Try this at home" section, I didn't see an answer to their challenge. But I've had campfires into which aluminum cans were crumpled and dropped, with no evidence of them to be found the next day.

momentum and mass aren't the same thing.

Rubber's a good insulator, but I don't think it will keep out EM radiation, just current. Wood's a good insulator, too, but doesn't do much as far as shielding goes. You no longer have a grounded surface, so no Faraday cage. The reason that the surface will be an equipotential is that charges feel a force when there is a potential difference, and this causes them to move in such a way that they will minimize their energy. If you have a poor conductor, it will take longer to equilibrate. I'm guessing that the equilibration time would be related to the frequency of radiation that would be passed by the material. e.g. if the material took a millisecond to respond, radiation higher than about a kHz would easily be passed.

AFAIK it still holds that there is no "center" to the universe, and the measurement of time depends on your kinetic and gravitational potentials. And the kinetic term depends on your frame of reference. I don't think you will get very far with defining things this way, especially since the definitions are vague to begin with.

Revolves.

They were equivalent, weren't they? Anyway, surface tension isn't the whole story. Adhesion to the bottle matters as well.

I'm sure that's what they said about the Maginot line.

I do recall hearing that male pattern baldness tends to be passed along maternal lines, so there is some truth to the statement. But you only inherit half of your mom's genes.

There is nothing inherently quantum mechanical about a mass spectrometer measurement. All of the physics of doing the measurement is classical.

I didn't say they weren't. I said that you don't need a QM measurement to measure them. Classical physics works just fine. The whole lever of teleportation, as I understand it, is the increased fidelity over classical measurements. So it has to use something that you don't measure classically.

Yeah, I'm not convinced that the equation is completely correct.

Right. Spin for atoms or polarization for photons. edit to add: it might be possible to also teleport the energy state of the atom; there are ways to "shelve" the electron into a metastable state. But the bottom line is that it's got to be a state measurable by some QM measurement. Mass and charge don't qualify.

Tautology aside, what makes you think this is so?

Betas are electrons. Alphas are Helium nuclei.

All photons are radiation, but not all radiation is photons.

And I get headaches from pounding my head against the wall. But it isn't because of the radiation the wall is emitting.

Well, for starters, you need to put all of your values in the same unit convention. You have MKS, CGS and "other" all mixed together. (who uses dm for anything?) I get something close to 10m.

Got a link? Was it a real, double-blind study, or was it just correlation? Could be that living the kind of lifestyle that makes you have a cellphone leads to lower sperm counts.

Right. The gas comes out of solution and displaces the liquid. One thing to remember is that for a drop to come out, you have to create that volume inside the bottle. Carbonation does that without any gas coming in from the outside.