Photos: Cool gizmos on display

A small Dyson with a telescopic handle. The company sells this model in Japan. It doesn't have an on-off switch that you step on because Japanese consumers don't like to turn things off with their feet.

When Japanese consumers have a problem with the small Dyson vacuum cleaner, they dial customer support and put the phone up to the grill in the picture. The vacuum then provides its information to customer support.

"We look at battle bots sort of as rock, paper scissors," said Matt Maxham of Team Plumbcrazy.

Pictured is part of the support structure for the space elevator. The space elevator is a proposed structure which, ideally, will keep a huge space station tethered to the Earth by a ribbon of . While the idea of the space elevator has been criticized by many, proponents say it's a test vehicle to show how carbon nanotubes will one day be used in the construction of bridges and/or buildings.

The Oliso Touch&Glide iron contains a pressure sensor in the handle. When you release your hand, the legs pop up to prevent the iron from burning anything. It sells for $89 at Fry's.

The Airboard is an inflated sled. The difference between it and an inner tube is a series of grooves on the bottom that allow you to carve turns. A person can travel as fast as a skier or snowboader, according to the company.

The Stanford solar car. It won the stock category (for solar cars built out of standard parts) in the collegiate solar challenge. It can go up to 75 mph.

Dan Levy, who worked for years in Silicon Valley as a marketing exec, doesn't ski and used to get incredibly bored on family ski vacations. So he started Captain Avalanche, which specializes in high-tech sleds. The sleds can go up to 50 mph and make sharper turns than normal sleds. The sleds come with a foot brake, too. Ultimately, the price should come down to around $149 to $199, he said.