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Harmful Algal Blooms in Their True Colors

Explosive growth of cyanobacteria, also called blue-green algae, is nothing new. In fact, such cyanobacteria probably produced the original oxygen in Earth's

Counting Down to the New Ampere

After it's all over, your lights will be just as bright, and your refrigerator just as cold. But very soon the ampere -- the SI base unit of electrical current

Measuring Tiny Forces with Light

Photons are bizarre: They have no mass, but they do have momentum. And that allows researchers to do counterintuitive things with photons, such as using light

NIST's Compact Gyroscope May Turn Heads

Shrink rays may exist only in science fiction, but similar effects are at work in the real world at the National Institute of Standards and Technology (NIST)

Detecting Brain Waves with Atomic Vapor

It's really hard to hear what the brain is saying. Neural impulses -- currents of ions moving through channels between the brain's 100 billion neurons at a