2008-08-24

A Plane With Wings Of Glass?

ScienceDaily (June 24, 2008) — Imagine a plane that has wings made out of glass. Thanks to a major breakthrough in understanding the nature of glass by scientists at the University of Bristol, this has just become a possibility.

Despite its solid appearance, glass is actually a 'jammed' state of matter that moves very slowly. Like cars in a traffic jam, atoms in a glass can't reach their destination because the route is blocked by their neighbours, so it never quite becomes a 'proper' solid.

For more than 50 years most scientists have tried to understand just what glass is. Work so far has concentrated on trying to understand the traffic jam, but now Dr Paddy Royall from the University of Bristol, with colleagues in Canberra and Tokyo, has shown that the problem really lies with the destination, not with the traffic jam.

Publishing June 22, 2008, in Nature Materials, the team has revealed that glass 'fails' to be a solid due to the special atomic structures that form in a glass when it cools (ie, when the atoms arrive at their destination).

UnoCycle single-wheel bike just might be real

unocycle_main.jpg

You've seen the Noah, marveled at the Embrio
— isn't it time you saw a one-wheeled motorcycle that might
actually be real? Witness the UnoCycle, a single-wheel, single-rider
(please don't test that limit) vehicle that appears to be based on
gyroscopic tech similar to a Segway and, more importantly, has
photographic evidence of its existence. Of guys riding it and
everything.



Still in development, the Uno's top speed is 15 mph, but the
inventor, Ben Gulak, suspects it could go as high as 40. That's no
Harley, but it's faster than a Segway, and remember this is a
battery-powered machine that you never need to fill up. Gulak says he's
getting lots of interest lately — we hope he invests a little of
his incoming finances into a less-skeletal website.

2008-08-08

Southern California Hot Spot Hits 812 Degrees, Baffles Experts

The ground is so hot in one part of Southern California it can melt the shoes right off your feet.

An unexplained "thermal anomaly" caused a patch of land in Ventura County, just north of Los Angeles, to reach a temperature of over 800 degrees on Friday, baffling experts who have been monitoring the area for weeks.

The anomaly was discovered after the land got so hot that it started a brush fire and burned three acres last month.

Firefighters were brought to the scene after reports of a blaze, but by the time they arrived only smoldering dirt and brush remained.

http://www.foxnews.com/story/0,2933,398484,00.html

2008-08-01

Phoenix Lander Has Touched Martian Water For the First Time

NASA just announced that the Phoenix Lander has successfully scooped up a Martian water ice sample and placed it in its oven for scientific analysis. "Mars Odyssey discovered this ice six years ago, but we've now touched it and tasted it, which is something that hasn't been done before," said a scientist at today's press conference. The sample has been dubbed the "Wicked Witch" (because it's meeeelting, meeeelting—get it?) and it will continue to be analyzed over the course of the coming weeks as data trickles in. Exciting, exciting stuff from this very successful mission. More details and new hi-res surface images to follow.


"Major Discovery" From MIT Primed to Unleash Solar Revolution

Scientists mimic essence of plants' energy storage system.

In a revolutionary leap that could transform solar power from a marginal, boutique alternative into a mainstream energy source, MIT researchers have overcome a major barrier to large-scale solar power: storing energy for use when the sun doesn't shine.

Until now, solar power has been a daytime-only energy source, because storing extra solar energy for later use is prohibitively expensive and grossly inefficient. With today's announcement, MIT researchers have hit upon a simple, inexpensive, highly efficient process for storing solar energy.

Requiring nothing but abundant, non-toxic natural materials, this discovery could unlock the most potent, carbon-free energy source of all: the sun. "This is the nirvana of what we've been talking about for years," said MIT's Daniel Nocera, the Henry Dreyfus Professor of Energy at MIT and senior author of a paper describing the work in the July 31 issue of Science. "Solar power has always been a limited, far-off solution. Now we can seriously think about solar power as unlimited and soon."

Inspired by the photosynthesis performed by plants, Nocera and Matthew Kanan, a postdoctoral fellow in Nocera's lab, have developed an unprecedented process that will allow the sun's energy to be used to split water into hydrogen and oxygen gases. Later, the oxygen and hydrogen may be recombined inside a fuel cell, creating carbon-free electricity to power your house or your electric car, day or night.

The key component in Nocera and Kanan's new process is a new catalyst that produces oxygen gas from water; another catalyst produces valuable hydrogen gas. The new catalyst consists of cobalt metal, phosphate and an electrode, placed in water. When electricity - whether from a photovoltaic cell, a wind turbine or any other source - runs through the electrode, the cobalt and phosphate form a thin film on the electrode, and oxygen gas is produced.

Combined with another catalyst, such as platinum, that can produce hydrogen gas from water, the system can duplicate the water splitting reaction that occurs during photosynthesis.

The new catalyst works at room temperature, in neutral pH water, and it's easy to set up, Nocera said. "That's why I know this is going to work. It's so easy to implement," he said.

http://www.truthout.org/article/major-discovery-from-mit-primed-unleash-solar-revolution