X-Ray Images & False Color
The colors we see in the world around us are the result of the way that the human eye and brain perceive different wavelengths of light in the visible part of the electromagnetic spectrum. X-rays, and other wavelengths such as radio, infrared, ultraviolet and…
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Biology
Pass the Iodized Salt Please
Have you ever wondered why common table salt contains iodine? It's because iodine is essential to your health.…
Biology
The Great Permian Extinction
More than 250 million years ago, when the current continents formed a single land mass, known as the Pangea…
Physics
X-Rays - Another Form of Light
A new form of radiation was discovered in 1895 by Wilhelm Roentgen, a German physicist. He called it…
Biology
Man-Eating Plants
What's for dinner? A bowl of salad greens, corn on the cob and strawberry shortcake for dessert. And it's not…