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Seafloor Spreading
Seafloor Spreading

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PPTX

... • Measure the total bending angles for different values of the impact parameter (may be possible by extraterrestrial observational facilities) • Check the power dependence by fitting to Birefringence • The bending of perpendicular polarization is 1.75(14/8) times larger than the bending of parallel ...
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... Once again, we underline forcefully that we have only shown compatibility between some approximations of the full set of “Maxwell equations” with Galilean relativity. We will now present what we think to be a demonstration of the two Galilean limits. Indeed, the author has recently proposed to use t ...
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... propellant to carry out such an interplanetary transfer. For more ambitious trips — such as expeditions to the outer planets, which have deltav requirements that range from 35 to 70 km/s — chemical rockets would need to be more than 99.98 percent fuel. That configuration would leave no space for oth ...
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... understanding by asking, What is current electricity? (the flow of charge through material) What is the difference between a conductor and an insulator? (Electric current moves easily through a conductor; it does not flow well through an insulator.) Which has greater resistance, a conductor or an in ...
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Magnetochemistry



Magnetochemistry is concerned with the magnetic properties of chemical compounds. Magnetic properties arise from the spin and orbital angular momentum of the electrons contained in a compound. Compounds are diamagnetic when they contain no unpaired electrons. Molecular compounds that contain one or more unpaired electrons are paramagnetic. The magnitude of the paramagnetism is expressed as an effective magnetic moment, μeff. For first-row transition metals the magnitude of μeff is, to a first approximation, a simple function of the number of unpaired electrons, the spin-only formula. In general, spin-orbit coupling causes μeff to deviate from the spin-only formula. For the heavier transition metals, lanthanides and actinides, spin-orbit coupling cannot be ignored. Exchange interaction can occur in clusters and infinite lattices, resulting in ferromagnetism, antiferromagnetism or ferrimagnetism depending on the relative orientations of the individual spins.
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