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LEDs for the Rest of Us
Light emitting diodes, better known as LEDs, are the coolest new light sources. They’re tiny, long-lived, and rugged. But how do they work? Check out this site if you desire considerably more detail than can be found in a two-sentence summary. Go to: http://electronics.howstuffworks.com/led.htm
- Health & Medicine
Looking for Biomarkers: Protein signature may warn of impending Alzheimer’s disease
Measuring the amounts of certain proteins in the blood might provide early warning of Alzheimer's disease.
- Earth
Bad Acid: Ocean’s pH drop threatens snail defense
As ocean waters trend toward acidity, a result of atmospheric greenhouse gas buildup, a shoreline snail's defense against predatory crabs may weaken.
