speed

In a high-velocity demonstration that proves green and badass can coexist in the same vehicle, Mission Motors has set a new speed record for electric motorcycles.

Topping out at 161 mph, the Mission One motorcycle beat out 70 percent of the gasoline-burning bikes during a recent event at the Bonneville Speedway in Utah.

In a world of rapidly evolving threats, every branch of the military is looking for a way to respond as quickly as possible. But whereas the Air Force, Army and Marines can simply fly to whatever hot spot flares up next, the Navy, by its very nature, still needs to sail. That's where the Underwater Express comes in.

Currently, the Navy's fastest submarine can only travel at 25 to 30 knots while submerged. But if everything goes according to plan, the Underwater Express will speed along at 100 knots, allowing the delivery of men and materiel faster than ever.

The National Science Foundation and NASCAR have teamed up for a new video series that explains the science of car racing in depth (trailer above). "The Science of Speed" videos go straight to the track to show all the tricks racers use to get the most velocity out of a hunk of metal on four wheels.

Past owners of the notoriously wheezy diesel Rabbit will find it hard to believe, but this blurry streak is also powered by a four-cylinder diesel. Two of them actually: one for the front wheels and one for the rear. Built for use in front-loaders and forklifts, the 4.4-liter engines were specially tuned to 750 horsepower each by U.K. construction-equipment company JCB as part of an effort to set a new speed record for a diesel-powered car. It paid off.

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Start by checking the health of your hardware with a free diagnostic program such as #1-Tufftest (tufftest.com).
If the motherboard or screen is shot, forget it. Replacing either one is more expensive and more hassle than buying a new system.
Lost your user manual? Try the manufacturer´s Web site.
Check eBay or craigslist.org for used replacement parts.

Marc Norman is standing ice-side in the new skating rink in Salt Lake City, Utah-the site of this year's Winter Olympics. It's noisy in here: Workers are installing a high-tech dehumidifying system. Speaking over the persistent clanging, Norman makes a prediction. "Once that's completed," he says, "we will be able to control just about everything that happens in this building."