Somewhere Over Which Rainbow?
How many rainbows are there really when we only see one during a rainstorm? The answer isn't as simple as you might think! Rainbows are formed when light enters a water droplet, reflects once inside the droplet, and is reflected back to our eyes. Each raindrop…
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Chemistry
Chemical Burning
Chemical burns are the result of very normal reactions that can occur between the offending material and…
Biology
Why Aren't Mice More Like Us?
The sequence of the human genome was published two years ago, and recently, the sequence of the mouse genome…
Astronomy
A Giant X-Ray Machine
The first clear detection of X-rays from the giant, gaseous planet Saturn has been made with NASA's Chandra…
Medicine
Why Do We Call It A 'Vaccination?'
Smallpox 'vaccinations' are in the news nowadays. What is smallpox and what is a vaccination? Smallpox is one…