Cancelling Out CPU Fan Noise

Percy_Blakeney writes "After realizing how noisy his computer was, a professor at BYU has created a new CPU fan that uses small microphones and speakers to cancel out its own noise. It isn't perfected yet -- it only nixes the whine, not the whoosh -- but it looks like it could be promising, especially given the professor's background: making jet engines quieter."

Comments

Real Life Example

[fembots]

Does this method really work?

In real life, if your other half is yelling at you, you then yell back equally loudly, does it cancel the yelling altogether? :)

Having said that, this cancelling method is quite widely used in ancient China (not sure about the modern one). For instance, if you are bitten by a scorpion, just find something equally poisonous, or more, to bite at the same spot, and voila!