Uncategorized
- Physics
Neptunium Nukes? Little-studied metal goes critical
Researchers have measured with far greater accuracy than ever before how much neptunium it would take to make a bomb.
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In your article, a spinning coin’s motion is explained by the existence of an air cushion between coin and tabletop. If this is indeed the case, then I would expect coins to do something quite different in a vacuum. What do they do? Richard Chambers Charlotte, N.C. H. Keith Moffatt offers an explanation for the […]
- Ecosystems
Insects, pollen, seeds travel wildlife corridors
Strips of habitat boost insect movement, plant pollination, and seed dispersal among patches of the same ecosystem.
