Recent content by Tyger

Try a marine supply. They will have push-pull switches, similar to the old auto starter switches, that have long shanks. That is a very common problem in boats, the panels are very thick.

I just looked at the picture in the link you gave and it isn't very realistic at all. The E and B components should be 90o out of phase. There must be a more accurate representation somewhere on the web.

Hold on a minute here. The E and B components are 90o out of phase, both in space and in time. So that the square of the magnetic and electric field intensities, which represents the energy density, is constant and energy is conserved. The fact that the E and B components and the direction of...

In diamond the atoms are in a rigid interlocking structure, in graphite the atoms are arranged in layers which can easily slide over each other. That is why graphite is so slippery and makes a good lubricant.

The electrons which make it through the first screen are the ones that didn't interact with it. If we place a detector at a slit and the photon interacts with it, it randomizes the phase of the amplitude associated with that slit, and the interference pattern is destroyed.

For diamonds the atoms are arranged like tetrahedrons, which are the three dimensional equivalent of triangles, and yes, that is one reason diamonds are so hard, the tetrahedral arrangement is rigid and incompressable.

Thank you ZapperZ, for adding that. I hadn't thought of that possibility.

The electron can enter the apparatus as a plane wave and still exhibit the interference pattern, so it doesn't have to come from a point source. The two slit experiment has been done with several kinds of detectors, photograpic film, scintillation screens etc.. And yes, for the electron the...

Put the sandwich in the Tupperware, and then wrap that with foil to reflect the heat back to the sandwich. The best of both worlds.

The frequency is defined as the change of quantum mechanical phase per unit time. That is to say, the quantum mechanical phase associated with the amplitude for the state, photon, electron, etc.. Analogously the wavenumber is the QM phase change per unit length. The are associated with the...

I seem to recall that the Schuam's Outline Series on the Laplace Transform gives a good explanation of the contour integral as the inverse transform. One of the main reasons people use the Laplace Transform is that the tables and a few rules of thumb can be used to solve almost any real problem.

I suspect it is something of a trick question, which is why it is stated that way. To test if the reader really knows what is meant by impulse. But in any case, your answer is the correct one.

Voltage is a measure of the electical potential between two points. If there is one volt between two points, and one electron moves from one point to the other, it gains or loses one electron volt of kinetic energy.

Probably the best way to define temperature is the mean free energy per unit quantum, regardless of the nature of the quantum, which could be a free photon, electron, lattice exitation or internal vibrational mode.

Imagine a Hydrogen molecule, with just two protons and a pair of electrons. The protons can have vibrational exitations much like two weights coupled by a spring, with the electron pair acting as the spring. Now put many Hydrogen molecules together to form a crystal and you can have local or...