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Why are blueprints blue?

science.howstuffworks.com/engineering/structural/blueprints-blue-.htm

Why are blueprints blue and not some other color? There's a specific chemical process behind it, and its discovery has all the elements of a dark fairy tale.

How Zambonis Work

science.howstuffworks.com/zamboni.htm

All eyes are trained on you at halftime as you make slow sweeps across the rink, leaving sparkling smooth ice in your lumbering wake. The fans cheer. You tip your head slightly in modest acknowledgement. This is the life of the Zamboni driver.

Who invented the sleeper sofa?

science.howstuffworks.com/innovation/everyday-innovations/who-invented-the-sleeper-sofa.htm

Ever wondered who invented the sleeper sofa? Check out the long, illustrious history of the sleep sofa invention.

Is there a link between intelligence and mental illness?

science.howstuffworks.com/life/inside-the-mind/human-brain/link-between-intelligence-and-mental-illness.htm

Is there any truth to the stereotype of the mad scientist? Turns out there is a link between high IQs and mental illness. Researchers are still not sure why.

10 Misconceptions About the Flu

science.howstuffworks.com/life/cellular-microscopic/10-flu-misconceptions.htm

What are some misconceptions about the flu? Learn about 10 common misconceptions about the flu.

Is there a psychological reason for people being mean on the Internet?

science.howstuffworks.com/life/inside-the-mind/human-brain/psychological-reason-mean-on-internet.htm

We've all seen "flame wars" on the Internet. Maybe we've been the victims or the perpetrators, too. But what causes people to say things online that they would never say in person?

How Willpower Works

science.howstuffworks.com/life/inside-the-mind/human-brain/willpower.htm

Willpower allows us to resist urges and impulses. Learn about willpower in this article.

10 Worst Nor'easters of All Time

science.howstuffworks.com/nature/climate-weather/storms/10-worst-nor-easters.htm

What makes a nor'easter different from your run-of-the-mill winter storm? And which ones have done the most damage?

Can You Really Outrun an Explosion?

science.howstuffworks.com/outrun-explosion.htm

"Die Hard" films' John McClane (not to mention a long line of other Hollywood action heroes) never met an explosion he couldn't outrun. In real life, it's not so easy to sprint away from a blast.

Where Are the Northern Lights and Southern Lights?

science.howstuffworks.com/nature/climate-weather/atmospheric/10-spots-to-watch-auroras.htm

Auroras themselves aren't rare, but spotting one can be tricky: You need a clear, dark sky within one of the auroral zones. What are 10 spots that up the odds a bit?

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