Archives
...but still an airship (I guess): the
M.A.R.S. Floating Wind Generator (which, despite its name, does not generate wind, but rather electricity. Go figure.)
Posted by Edward Willett at 15:24, April 10th, 2007 under Blog |
...
this one runs on compressed air.Not only that, it's on the verge of production.
Posted by Edward Willett at 22:05, March 19th, 2007 under Blog |
A Swiss entrepreneur says his thin-film solar panels will
provide power more cheaply than fossil fules within five years:Even though solar technology has made significant gains since the 1970s when it cost $100 per watt (now it's $3 to $4 per watt), that sweet spot of beating out fossil fuels is $1 per watt. Swiss entrepreneur Anil Sethi says his solar foil can hit that magic number for even less than that — $0.80/watt — within five years and beat the cost of fossil fuels by 50% in 10 years.These thin films can be attached to the sides of buildings and work even on cloudy days.Sounds promising!
Posted by Edward Willett at 15:29, February 21st, 2007 under Blog |
The surface of our planet is nice and cool. (A little too cool, this time of year.) But not all that far beneath us, it's anything but. In fact, says Chris Marone, Penn State professor of geosciences, enough heat emanates from the interior of the planet to make 200 cups of hot coffee per hour for each of Earth's 6.2 billion inhabitantsThe Earth consists of three concentric layers. We're on the crust, hard and thin (from 10 to 100 kilometres thick). Under that is the mantle, made of molten rock and about 2,900 kilometres thick. At the center of the planet lies the core, consisting of an inner part about the size of the moon that is essentially ...
Posted by Edward Willett at 17:48, February 6th, 2007 under Blog, Science Columns |
We don't hear a lot about geothermal energy in discussions of alternative, environmentally friendly energy sources, but
maybe that's about to change:A comprehensive new MIT-led study of the potential for geothermal energy within the United States has found that mining the huge amounts of heat that reside as stored thermal energy in the Earth's hard rock crust could supply a substantial portion of the electricity the United States will need in the future, probably at competitive prices and with minimal environmental impact.Some early research into geothermal energy was done right here at the University of Regina. Here's the pertinent sidebar from my book A Safe and Prosperous Future: 100 years of engineering and geoscience achievements ...
Posted by Edward Willett at 16:26, January 22nd, 2007 under Blog |
...to something like its natural state, and reap a benefit: turns out the best feed material for creating ethanol isn't monoculture crops like wheat or corn, but
mixtures of native prairie grasses and other flowering plants.Easier to grow, too, obviously.
Posted by Edward Willett at 20:05, December 7th, 2006 under Blog |
From
Scientific American:Researchers at the University of Minnesota have developed a new, carbon-neutral way to convert vegetable-based fuels to syngas, a breakthrough that could allow producers to power hydrogen fuel cells or create a replacement for America's dwindling supplies of natural gas, all without relying on fossil fuels. Read the rest.(Via
Transterrestrial Musings.)
Posted by Edward Willett at 16:16, November 4th, 2006 under Blog |
Imagine a process that can turn any kind of organic waste into high-grade oil. It sounds too good to be true. But that’s the promise of the thermal depolymerization process (TDP), outlined in the May issue of the respected popular science magazine Discover (from which most of the following information is drawn).
Naturally occurring oil comes from one-celled plants and animals that died in the oceans, settled to the floor, decomposed, and were eventually crushed underneath the planet’s sliding tectonic plates. The pressure and heat far underground broke down the creatures’ long chains of hydrogen, oxygen and carbon-bearing molecules, called polymers, turning them into petroleum hydrocarbons, which have much shorter molecular chains.
Scientists have tried to ...
Posted by Edward Willett at 4:35, May 15th, 2003 under Blog, Columns, Science Columns |
A lot of attention in Canada has been focused recently on the Kyoto Agreement to limit the emission of greenhouse gases. But scientifically, the goal for preventing possibly catastrophic global warming has been set far higher than Kyoto's modest reductions.
An article in the November 1 issue of Science sets out the challenges. Entitled "Advanced Technology Paths to Global Climate Stability: Energy for a Greenhouse Planet," it was written by a team of 18 scientists and engineers from major universities (including McGill), U.S. government laboratories and agencies, and even Exxon Mobil. The U.S. Department of Energy funded the project.
The level of carbon dioxide in the atmosphere has increased from 275 to 370 parts per million ...
Posted by Edward Willett at 11:32, November 5th, 2002 under Blog, Columns, Science Columns |
In twenty years, will you still be driving a car with an internal combustion engine? Not if the future unfolds the way auto industry experts expect it to.
The car of 2020, it seems increasingly likely, will be fueled with methanol or hydrogen and driven by an electric motor powered by fuel cells--most likely, fuel cells developed and perfected by a Canadian company.
There's been a flurry of fuel cell activity recently. On October 30, Ford announced it will offer the first commercial fuel-cell-powered vehicles, based on the Ford Focus and intended for business fleets, in 2004. Fuel-cell-powered cars for the general consumer should be ready by 2010....
Posted by Edward Willett at 22:54, November 7th, 2000 under Blog, Columns, Science Columns |