Ice is supposed to float, but with a little heavy water, you can make cubes that sink
By Theodore GrayPosted 07.01.2006 at 2:00 am 0 Comments
Make Sinking IceCost: $65Time: 2
HoursSafe | | | | |
Want a surefire bet for your next cocktail party? First, tell your guests
that aquatic life-at least in temperate
climates-depends largely on the fact
that ice floats. If it sank, lakes would freeze solid instead of forming an
insulating layer of ice on top, killing all the fish. Now bet that you can
magically make an ice cube sink. Grab one from a glass of special cubes
With a shift of its wing, the Pentagonâ€™s next attack drone goes from long-range endurance flyer to Mach-speed assassin
By Noah ShachtmanPosted 07.01.2006 at 2:00 am 1 Comment
For years, the U.S. military has wanted a plane that could loiter just outside enemy territory for more than a dozen hours and, on command, hurtle toward a target faster than the speed of sound. And then level it. But aircraft that excel at subsonic flight are inefficient at Mach speeds, and vice versa. The answer is Switchblade, an unmanned, shape-changing plane concept under development by Northrop Grumman.
The newest pocket cams use stabilization to save you from your shaky hands
By Dan HavlikPosted 06.29.2006 at 2:00 am 1 Comment
The smaller your camera, the more susceptible it is to even the slightest tremble, which can leave your photos looking like Impressionist paintings. Fortunately, optical image stabilization has trickled down from pro cams to the shake-prone pocket models. The cameras use motion sensors to detect any quiver and move a piece of the lens to compensate for it. I tested three in the most blur-inducing scenarios: in low light without a flash-the slow shutter speed gives you more time to twitch-and at full zoom, which magnifies shake.
A new internal transmission makes it easy
to ride hard
By Stephen RegenoldPosted 06.30.2005 at 10:00 pm 0 Comments
In the evolution of ride-over-anything mountain bikes, the ever-vulnerable rear derailleur—that gangly parallelogram that shifts the chain up and down the rear cogs when it´s not clogged with mud or bent by rocks—has been a glaring technical handicap. So GT (gtbicycles.com) got rid of it. With its $5,000 IT-1, GT moves gear-changing duties to an unsullied haven inside the bike frame, by way of an eight-speed internal transmission.
Replace your second computer with this portable tablet
By Paul WallichPosted 06.27.2005 at 7:00 pm 0 Comments
Since the dawn of wireless, the roving Google junkie has faced two options: a bulky wireless laptop or a Web-page-cropping PDA. This fall, however, Nokia (nokia.com) will introduce a palm-size Internet gadget that surfs Web pages in full, albeit scaled-down, glory, anywhere. Measuring three by six inches, the 770 connects to the Internet via Wi-Fi or a Bluetooth cellphone. Think of it as a $350 replacement for that second PC.
An automotive designer best known for building sports cars shifts gears to invent a safer subcompact
By Matthew PhenixPosted 06.26.2005 at 2:00 am 0 Comments
Pint-size cars are the practical option in European cities, whose streets seem to be designed for wheelbarrows, but they come up short on safety. Keenly aware of this dilemma, Milan-based automotive designer Pininfarina has reconsidered subcompact safety from the inside out with its Nido concept car. Named after the Italian word for â€nest,â€ Nido refers to the unique design for protecting passengers of this diminutive two-seater (it´s 2.5 feet shorter than a Mini Cooper).