How To Build A Deep Bass System For $750

Tactile Transducers

In this article I will describe how to build a high-fidelity, bass-intensive sound system for under $1000. The secret ingredient of the system is the use of┬átactile transducers. These transducers effectively eliminate the need for expensive woofers or subwoofers. It’s an efficient method of producing deep, high-fidelity bass for a fraction of the usual cost.┬áMany […]

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The Best Commuter Bikes Of 2010

Felt Cafe Deluxe 8 Commuter Bike

The sales of commuters bikes in the U.S. have grown quickly in the last couple years. Commuter bikes are those that include features useful for commuting to work or around town — like fenders, chain guards, storage racks, comfortable seats, lights and puncture-resistant tires. You may also be interested our reviews of folding bikes and […]

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Lenovo’s New Monitors Are Greenest Available

Lenovo has released a range of new LCD monitors that are probably the greenest monitors available. The new Thinkvision L2440x monitor received Greenpeace’s highest rating in their Green Electronics Survey 2008 (PDF File). Recently, I had a chance to review the Thinkvision L2440p 24″ widescreen LCD monitor. The L2440p uses only 30 watts to power […]

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LiFePO4 Batteries: A Breakthrough For Electric Vehicles

LiFePo4_battery_packs_for_EV_24V150Ah

Note: If you looking for AA-sized LifePO4, you can find them here. Soon, we’ll probably be seeing Lithium Iron Phosphate (LiFePO4) batteries being used in most electric cars and bikes. This new battery type is set to dominate the market. Based upon lithium ion technology, LiFePO4 batteries offer many advantages over lithium cobalt dioxide (LiCoO2) […]

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Sharp Introduces Earthquake-Detecting Solar LED Streetlights

Sharp is introducing a new range of solar-powered LED streetlights. These self-contained lights charge during the day, and switch on automatically when darkness falls. They can operate for 10 years straight without maintenance. They make use of new, high-intensity LED spotlights, which are ideal for public parks. The LEDs illuminate with a directed light and […]

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