News
- Materials Science
Magnetic nanorods on cruise control
Chemists have created miniature engines out of nanoscale metallic rods that propel themselves using chemical energy.
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Whalebones show damage from diving
Long-lived sperm whales typically develop bone damage not previously observed in marine mammals but found in some human divers who surface quickly or dive frequently.
- Earth
Air pollution trims fetal growth
Pregnant women who breathe polluted air deliver babies that are typically slightly smaller than those born to other mothers.
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Getting to gray hair’s roots
Scientists have unveiled a root cause for why hair goes gray.
