Monthly Archive: January 2015

Types of Taste Buds

Each human tongue contains an average of roughly 10,000 chemoreceptors. These microscopic hair-like nerve endings, called microvilli, are encapsulated in a protective envelope on a short stalk, called papillae. These buds sense chemicals in food, giving them their flavor. These…
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Anatomy Physiology

How smell works Humans can distinguish about 10,000 different odors (for comparison, a dog or a rat can distinguish somewhere between 30,000 and 100,000). The details of how we do this were a mystery until the 1990s, and the people…
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How Lasers Work

“Building Your Own Laser” A laser is defined as an optical device which emits a beam of light radiation. Unlike light from other natural and artificial sources, a laser is monochromatic, meaning it only casts light of a very specific…
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Biography Albert Einstein

Most scientists aren’t household names, but Albert Einstein was one-of-a-kind. He became a worldwide celebrity not just for his work in physics, but also for his personality. People’s image of the friendly, absent-minded science professor with sloppy hair that’s all…
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