This is a molecule, and the circles represent how the electrical charge is distributed inside it.
It's a glimpse of the forces that bind molecules together, essentially. This picture is a major breakthrough for nanotechnologists — understanding how charge is arranged inside molecules could help research in anything from solar energy to biology.
IBM researchers made this image using a new technique called Kelvin probe force microscopy, a different version of the more familiar atomic force microscopy that already gave us the first pictures of a molecule three years ago.
Chemists have messed with the constituent parts of a helium atom and fooled it into behaving like it was hydrogen. This form of alchemy allows a physical test of how atomic mass affects chemical reaction rates.
The trickery involves a particle accelerator, a heavy subatomic particle and some knowledge of quantum mechanics.
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
Nine myths and misconceptions, and the truth about why hydrogen-powered cars arenâ€™t just around the corner
By Michael BeharPosted 03.24.2006 at 2:00 am 1 Comment
In presidential campaign of 2004, Bush and Kerry managed to find one piece of common ground: Both spoke glowingly of a future powered by fuel cells. Hydrogen would free us from our dependence on fossil fuels and would dramatically curb emissions of air pollutants, including carbon dioxide, the gas chiefly blamed for global warming. The entire worldwide energy market would evolve into a "hydrogen economy" based on clean, abundant power. Auto manufacturers and environmentalists alike happily rode the bandwagon, pointing to hydrogen as the next big thing in U.S. energy policy.
A novel way to squeeze more data onto CDs and DVDs.
By Charles Q. ChoiPosted 06.02.2003 at 8:27 pm 0 Comments
Sony's high-capacity blue laser DVD recorder, set to debut in the United States this fall, crams five times more information on a
disc than the standard red laser version does and heralds the arrival of next-generation technology. Enthusiasts eager to get their hands on that much data capacity, however, may think twice after learning that production snags boosted the DVD's price to about $3,500. But researchers at BlackLight Power in Cranbury, New
Jersey, say they have made a discovery that may help overcome technical hurdles and get reliable blue lasers to market.
High-altitude Unmanned Aerial Vehicles (UAVs) could soon be capable of staying aloft for weeks at a time, providing telecommunications services or gathering military intelligence over a future battlefield.