Population #3 — European Demographics

Being that we live in Romania, here are a few thoughts about European demographics: The population of many Eastern European countries is declining. This is due not only to low birthrates but also to high emigration rates. Many young, educated Romanians, for example, desire to move either to Western Europe or to the United States. …

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The Orbitron

I just finished teaching about electron configurations and orbitals (quantum mechanics stuff) in Chemistry -- you know, the 1s22s22p63s23p64s23d6 stuff. Well, maybe you don't remember. Don't worry about it. If you do remember quantum mechanics, you'll appreciate the graphical depictions of orbitals at The Orbitron, a gallery of atomic orbitals and molecular orbitals. Even if …

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