thedavid - Slashdot User

Boston University Working On LED Wireless Networks 179

Posted by timothy on Thursday October 09, 2008 @02:43PM from the line-of-sight dept.

Madas writes "This article on Absolute Gadget details how researchers at Boston University's College of Engineering are working on devloping wireless networks that use LED lights instead of normal radio waves. This research apparently has other uses in the automobile industry. Apparently the LEDs could warn you if the driver in front has put the brakes on so could avoid hitting the car in front. Personally, I'd use the vision balls that are in my thought box."

Submission + - What's the best way to teach myself math? 4

Submitted by on Sunday October 14, 2007 @11:48AM

An anonymous reader writes: I have a secret. In high school I failed two out of three years of math classes and eventually dropped out of school completely. Although dropping out was the most foolish thing I have ever done, I am not dumb. I earned my general equivalency diploma as soon as was legally possible and from there went on to college and beyond. That was many years ago and my most basic algebra, trigonometry, and geometry skills are slipping away at an alarming rate. I'm looking for a self-guided course covering the equivalent of 4 years of high school mathematics including calculus. My math skills are holding me back. How can I turn this around?

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