The sports car turns into a speedboat. Free Technical Library News

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Sports car turns into a speedboat

23.09.2003

Gibbs Technologies' Aquada Sports Amphibian, which can transform into a speedboat at the push of a button, has been tested on the Thames.

The convertible, which develops speeds of up to 180 km / h on land, uses a water cannon in the floating version. Thanks to him, on the water it accelerates to a speed of 50 km / h. It takes only 10 seconds to hide the wheels in the body, turn on the engine and move through the water. To enter the water, the new car needs a slight gentle slope, although on the beach, for example, it can drive directly into the sea without additional devices.

The hybrid, which is scheduled for serial production at the end of this year, is not cheap: the retail price will be approximately 150 euros.

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Window like a subwoofer 12.07.2006

The subwoofer (woofer) of the car's speaker system is usually placed near the rear window or in the trunk.

Swedish engineers from A2 Acoustics, led by Urban Emborg, while working to reduce the level of noise in a car, accidentally discovered that the rear window can serve as an excellent membrane for emitting low-frequency sounds. On the underside of the glass are mounted piezo elements associated with the audio system.

"Preliminary studies have shown," says Emborg, "that at very low frequencies glass distorts the sound less than the best modern subwoofers." In addition, the new system will facilitate the assembly of the car, since instead of a separate installation of a subwoofer, it will be possible to simply insert a pre-assembled assembly into place - glass with piezo elements.

Now mass production of new items is being prepared, so the accidental discovery turned out to be quite serious.

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