Pump Up The Volume. decibels noise canceling . Are noise damage from loud music and radiation damage to brains from computers real? We test radiation and build our own noise-canceling headphones.. Question: Can you do serious damage to your hearing...

Pump Up The Volume With 117 DB SPL, Continued. logitech z. Logitech revamps its Z-2200 speakers in an attempt to offer best-in-class 2.1 sound. But is Logitech Z-2300's new features enough to separate it from the rest of the pack in this very competitive market?...

XLT coatings. This chamber uses three vacuum pumps to get down to 10-6 torr; one is a high vacuum pump, another high vacuum pump is presumably a diffusion like pump, and the third is a cryo-pump. The area in back of this chamber holding the pumps, and to one...

wow" factor. If you decide to build a water cooled HTPC; keep in mind that the kits take up a lot of space. Make sure your case can accommodate it. A standard water cooling kit consists of a water pump, a radiator, tubing, a reservoir or a fill/bleed system...

can no longer unscrew the tank and fill it or dump it; a screw cap on the tank’s top is the only way to load up. We found this cap to be a little bit leaky and hard to screw down tight enough; half the time I screwed it and tried to pump the gun I could hear...

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