Archives
A better way to keep cool
[podcast]http://edwardwillett.com/wp-content/upLoads//2010/06/A-Better-Way-to-Keep-Cool.mp3[/podcast] We all have our preferred temperature. Me, I like it cool. My poor college roommate can attest to that, since I just about froze him out of our room, aided by the fact I was tall enough to easily reach the air conditioning controls and he wasn’t. But hey, that was in Arkansas, and in Arkansas in late summer, I needed all the air-conditioning I could get. Humans, despite having originated in hot parts of the world, have long looked for ways to make buildings more comfortable in hot weather. The first attempts in the 19th century involved circulating air over blocks of ice, but modern air conditioning first had to await the invention of mechanical refrigeration. Liquids absorb heat from their ...Fuel from germs
[podcast]http://edwardwillett.com/wp-content/upLoads//2010/01/Fuel-from-Germs.mp3[/podcast] For years, we’ve been turning crops such as corn, wheat and sugar beets into fuel, using yeast to convert sugar into alcohol. But there’s an obvious problem with this. That stuff we’re turning into fuel is also food for humans and feed for animals. (And as an aside, how come we always call it “animal feed” as opposed to “animal food”? And why don’t we ever refer to “human feed”? Hmm?) A lot of the plant is wasted when you grow crops for fuel or food. The leaves and stems, with their tough cell walls made of cellulose, hemicellulose and lignin, are more of a nuisance than anything else. Wouldn’t it be great if there were a use for what is now plowed ...Liquid fuel from solar power
[podcast]http://edwardwillett.com/wp-content/upLoads//2009/07/Liquid-Fuels-from-Solar-Power.mp3[/podcast] In recent years, scientists and engineers have turned to biofuels—fuels generated from living things, and hence renewable—as a means of weaning us off of fossil fuels in favor of something cleaner, less likely to run out, and less wrapped up in international geopolitics. Fermenting the sugars found in corn or other grains into ethanol has been around for a long time, of course, and it’s pretty much a proven technology. On the other hand, do we really want to be turning food into fuel? More promising have been recent advances in turning lignocellulose, the stuff that makes up the cell walls in plants, into ethanol and other fuels: that would allow us to use grasses, wood chips, straw and other non-food as ...Turning anything to oil
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 ...Future energy sources
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 ...Chernobyl
This week, Ukrainian authorities restarted the last working reactor at the Chernobyl power plant, site of the world's worst nuclear disaster 13 years ago. Officials say the reactor is completely safe and free of any potential Y2K bugs. Considering that everybody living in the northern hemisphere 13 years ago was the unwilling recipient of at least a few radioactive particles from Chernobyl, we all have good reason to hope they're correct. Nuclear reactors split uranium atoms by bombarding them with neutrons. A small portion of the atoms' mass becomes energy, and they release more neutrons, which in turn bombard other nearby atoms, splitting them and beginning a chain reaction. If ...Wind power
Even in the years when we don't have much in the way of crops around these parts, we always have wind--which got me thinking, isn't it a shame there's no way to farm the wind? (It's not a new notion; after all, even the Bible says, in Hosea 8:7, "They sow the wind and reap the whirlwind. The stalk has no head; it will produce no flour." Sounds like Saskatchewan in a bad year, doesn't it?) Well, believe it or not, nowadays you can farm the wind. In fact, windfarms are cropping up all over, with the newest one recently announced for two of the windiest places in Canada (neither of which, believe it or not, ...Alternative fuels
Having written about fossil fuels, it behooves me to also write about alternatives, lest I neglect my environmental duty. Besides, I have all these left-over notes ... We use fossil fuels primarily for power generation and transportation. Huge strides have been made in reducing emissions, but scrubbers and catalytic converters don't change the fact that fossil fuels are non-renewable, or get rid of carbon dioxide, the main culprit in the projected global warming. This has spurred the search for alternatives. Fast-flowing rivers can be harnessed to spin turbines and generate electricity. Hydroelectricity doesn't pollute, but its dams and river diversions can flood habitats. Nuclear fission splits the ...Fossil fuels
Our modern society is based on "fossil fuels," which may sound to you like we're burning dinosaur bones for heat. We aren't, but we are burning the remains of plants and animals that lived millions of years ago, releasing the solar energy the plants captured through photosynthesis and the animals captured by eating the plants. A coal bed starts out (we think--very few people have the patience to directly observe a process that takes millions of years) as a silted-over peat bog. As the layer of sediment over the bog increases, it forces water out of the peat. The peat becomes richer in carbon and deficient in oxygen, until eventually hydrogen stops combining ...Fusion
Nuclear fusion as an electrical power source is rather like some people's plans for after they win the lottery. They're sure it's coming, and they're sure it's going to be great, but somehow it never seems to happen. Actually, that's not a very fair comparison, because nuclear fusion really does seem to be on the way, while most people will never get rich in a lottery. On the other hand, a lot of lottery winners will have come and gone before fusion finally becomes a viable energy source. However, on still another hand (hmm, that makes three), almost all of our present energy sources are ultimately derived from nuclear fusion, ...
Edward Willett is a The Shards of Excalibur, Book 1: Song of the Sword
My new YA fantasy novel, coming in October from Lobster Press
Before the Lady called her, Ariane’s life was a mess. Two years ago, her mother disappeared. She bounced around different foster homes until her aunt finally took her in. The meanest clique at her new high school has decided to make Ariane their prime target. And to top it all off, she is having frightening premonitions, and they are becoming more intense. The moment water touches her skin, she sees visions of a lake, a lady, and a sword. When a staircase opens up in the middle of Wascana Lake and the water begins singing to her, she has no choice but to answer the call….
Marseguro
Winner of the 2009 Prix Aurora Award for Best Long-Form Work in English
Water world Marseguro is home to the Selkies, a water-dwelling race created from human DNA. When an unmodified human seeks revenge on a Selkie by activating a distress beacon taken from the remains of the original colony ship, a strikeforce is sent from Earth to eradicate the genetic abomination. Yet Marseguro will not prove as easy to conquer as the Earth force anticipates…
Terra Insegura
Finalist for the 2010 Prix Aurora Award for Best Novel in English
Marseguro, a water world far from Earth, is home to a colony of humans and the Selkies, a water-dwelling race created from modified human DNA. For seventy years the colony has lived in peace. Then Earth discovers Marseguro, and a strike force is sent to eradicate this “abomination.” But Marseguro has created a genetically tailored plague to use against Earth’s Holy Warriors. With the enemy defeated, the people of Marseguro feel they are safe. But Chris Keating, the traitor who signaled Marseguro’s location to the Holy Warriors, has fled to Earth, unknowingly carrying the deadly plague within him. The people of Marseguro feel they must send a ship to Earth with a life-saving vaccine. Only time will tell what awaits them when they reach their destination.
Lost in Translation
Kathryn was a human empath whose world and life had been destroyed when the alien S’sinn slaughtered her parents before her very eyes. Jarrikk was a young S’sinn, an unproven warrior who’d seen his flight mates slaughtered by the humans who’d sought to colonize his world.
As humans and S’sinn found themselves on the brink of war, these two Translators had to work together to find a common ground and avert catastrophe. But whether their Translators’ oath and training could overcome the enemies leagued against them was very much in doubt…
Archives
Historic Walks of Regina and Moose Jaw
Ten walks to points of historic and architectural interest in the cities of Regina and Moose Jaw (eight walks for Regina, two for Moose Jaw).
Disease-Hunting Scientist
The true stories of six real disease hunters. Epidemiologists travel the world trying to keep us safe from deadly diseases—from high-tech labs in Canada to remote villages in Africa. Learn how these “disease detectives” are coming up with new ways to fight disease, and find out if you have what it takes to become an epidemiologist, too!
The Bounty Mutiny
The Bounty was a British ship visiting Tahiti in 1789 when some of the crew overthrew the captain, William Bligh, and set him adrift in a tiny boat with sailors loyal to him. The mutiny resulted in a number of trials–both of the men who mutinied and of Bligh for losing command of his ship. These fascinating events have been the source for numerous Hollywood movies, most recently The Bounty. The Bounty Mutiny: From the Court Case to the Movie explores the famous case and the movies it inspired.
