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How Astrolabes Work
electronics.howstuffworks.com/gadgets/clocks-watches/astrolabe.htm
Astrolabes are exquisitely crafted instruments that have hundreds of uses. Isn't it time you learned how to use this handy decoder of the sky?
The Amazing, and Alarming, Science Behind Red Snow
Red snow? Yes. It totally exists. And while it might look cool, it's not exactly what you want to see from Mother Nature.
7 Eye-catching Facts About the Bright Star Vega
science.howstuffworks.com/vega.htm
Even if you've never looked through a telescope, you've probably seen Vega, one of the brightest stars in our galaxy. In fact, thousands of years ago, Vega was our North Pole star, and will be again in the future.
How Alchemy Paved the Way for Chemistry
science.howstuffworks.com/alchemy-to-chemistry.htm
Alchemy may seem like a cousin to witchcraft but in reality it was the forerunner of modern chemistry.
'Disheveled,' 'Disgruntled': Why Are Some Words Only Used in Negative Form?
people.howstuffworks.com/lonely-negative.htm
No one ever says "heveled" or "gruntled." Do these words even exist? Not every word needs an opposite to prop it up. Here's why.
How did forensics experts create a modern profile of Jack the Ripper?
history.howstuffworks.com/history-vs-myth/ripper-profile.htm
Learn about the Jack the Ripper profile and what profilers and forensics experts think about Jack the Ripper's identity.
Are carrots really good for your eyesight?
health.howstuffworks.com/human-body/systems/eye/carrots-eyesight.htm
Are carrots really proven to aid eyesight? Get the science on the connection between carrots and eyesight and find out if it's really true.
Every White Flag With a Red Cross We Could Find (and Then Some)
people.howstuffworks.com/culture-traditions/national-traditions/white-flag-with-red-cross.htm
Flags aren't just colorful pieces of fabric waving in the wind; they're symbols, each one packed with history, identity and meaning. Today, we're exploring a striking type of flag seen across the globe: the white flag with a red cross. (We'll also take a look at flags that display the inverse: a white cross on a red background).
When It Comes to Air Pollution, the Tiniest Particles Might Be the Worst
Ultrafine particle pollution isn't yet regulated under federal air quality laws. HowStuffWorks takes a closer look at ultrafine particle pollution.
Where can you take a genealogy test?
people.howstuffworks.com/culture-traditions/genealogy/genealogy-test.htm
A genealogy test might be a good place to start your search for your ancestors. Learn about the best place to take a genealogy test to get started.