'How Things Work' Archive

Using Engineering to Photograph Lightning

Friday, July 27th, 2007

How can you get a photo of lightning without predicting when it will occur? This engineering solution automatically triggers your camera to take a picture when a lightning strike (or fireworks) appears and allows you to capture a picture of that strike. Lightning Activated Camera Shutter Trigger:
In a nutshell, the photo darlington converts [...]

Unraveling the Physics of DNA’s Double Helix

Thursday, July 12th, 2007

Unraveling the Physics of DNA’s Double Helix:
Researchers at Duke University’s Pratt School of Engineering have uncovered a missing link in scientists’ understanding of the physical forces that give DNA its famous double helix shape.
“The stability of DNA is so fundamental to life that it’s important to understand all factors,” said Piotr Marszalek, a professor of [...]

Dissecting an IP Phone “Magic Cable”

Wednesday, June 6th, 2007

Originally posted to the ASEE internal Information Technology blog by Sean Stickle:
As discussed at lunch, I have long believed the Polycom Power-over-Ethernet cable to be a fiction: at best, a misunderstanding on the part of the sales agent; at worst, a ploy to make extra money off customer ignorance. So I decided to take apart [...]