Archive for August 5th, 2009

In this video you get to go back in time and see how the starry sky would have looked to an astronomer 2,000 or 3,000 years ago. The motion of the “planets” (aka “the wanderers”) presented a profound mystery. The resolution to the mystery, for 1,500 years (!) involved Ptolemy’s epicycles: See also: The only [...]

In the past few days, many news outlets have picked up on the tale of Jim Nicholson, a Seattle bank teller who refused to comply with the demands of a man who was attempting to rob the bank. Rather than just handing over the money, Nicholson asked to see the man’s gun, causing the would-be robber to flee. Nicholson left his post, chased the man for several blocks and held him until the police could arrive. After all that trouble, Nicholson was fired, as his actions violated bank policy on how to deal with robberies.

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You Asked: I have a friend with a cochlear implant. How does a cochlear implant work? — Irena, Cary, NC Marshall Brain Answered: Cochlear implants are a relatively new technology that allow some deaf people to begin hearing again. This video provides a nice introduction: And: See also: Parts of a Cochlear Implant The problem [...]

More than a million parents call 911 in the United States every year because a child gets poisoned. That’s a lot of calls – obviously poisons are a big problem. If your child is poisoned, what would you do? What can you do to prevent poisoning? The obvious way to prevent poisoning is to remove [...]

Online dating is an increasingly popular way of meeting people, but does it really work? Molly and Cristen discuss how online dating compares to regular dating in this podcast from HowStuffWorks.com.

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Traffic lights detect vehicles using a variety of methods. Check out this podcast from HowStuffWorks.com to find out how timers, inductive loops and other detectors keep traffic running smoothly.

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Cell phone interference is annoying in general, but in some situations, it can be potentially deadly. Find out why hospitals and airlines tend to ban cell phones — and how great the risk actually is — in this podcast from HowStuffWorks.com.

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When Sacco and Vanzetti were charged with murder, the Italian-born anarchists didn’t receive a fair trial because of their political views and foreign birth. Learn more about the trial — and its repercussions — in this podcast from HowStuffWorks.com.

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