News
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Snooze Power: Midday nap may awaken learning potential
A brief daytime nap may block or even reverse learning declines that occur during extended practice of a perceptual task.
- Physics
Loud Loop: New explanation of whip-snapping unfurls
The wake of a loop zooming along a whip may silence the faster-moving tip so the loop actually causes the whip's loud bang.
- Health & Medicine
Eat Broccoli, Beat Bacteria: Plant compound kills microbe behind ulcers and a cancer
A chemical abundant in broccoli and certain other vegetables kills ulcer-causing Helicobacter pylori bacteria in the laboratory and inhibits stomach cancer in mice.
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