Archives
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 ...A bunch of stuff I wrote about biomass hits the Web
Earlier this year I wrote a lot of fact sheets about various aspects of biomass for Agriculture and Agri-Food Canada. Those fact sheets are now online: you can drill down from the main page.The largest section of what I wrote dealt with agricultural residue. Here's what's on that page, with links leading to more detailed information: Agriculture ResidueCereal StrawCereal straw is the dry stalk of a cereal plant, left behind in the field after the grain or seed has been removed during combining. It is the most abundant of all agricultural residues in Canada for one simple reason: of the approximately 36.4 million hectares ...Genetic modification of large animals just got easier
Efforts to genetically modify large animals have been hindered by the fact that the two methods currently used to effect it, somatic cell nuclear transfer or pronuclear injection, are costly, inefficient, difficult, and carry a risk of producing abnormal offspring. Now researchers at the University of Pennsylvania School of Veterinary Medicine have successfully produced genetically modified mice and goats by ...Who needs a flash drive…
...when you've got DNA?Japanese scientists say it might be possible to use DNA to store text, images, music and other digital data for thousands of years inside living organisms.Masaru Tomita and colleagues at Tokyo's Keio University say data encoded in an organism's DNA, and inherited by each new generation, could be safely archived for hundreds of thousands of years, becoming the perfect storage medium. In contrast, CD-ROMs, flash memory and hard disk drives can easily fall victim to accidents or natural disasters.The researchers describe a method for copying and pasting data, encoded as artificial DNA, into the genome of Bacillus subtilis, a common soil bacterium, "thus acquiring versatile data storage and the robustness ...Cotton: it’s what’s for dinner
Or, at least, it could be soon:"The exciting finding is that we have been able to reduce gossypol – which is a very toxic compound – from cottonseed to a level that is considered safe for consumption," said Dr. Keerti Rathore, Texas Agricultural Experiment Station plant biotechnologist. "In terms of human nutrition, it has a lot of potential." The cottonseed from these plants meet World Health Organization and U.S. Food and Drug Administration standards for food consumption, he said, potentially making the seed a new, high-protein food available to 500 million people a year.Genetic engineering
Though the word "biotechnology" sounds very modern, what it describes has been with us for centuries--if you define it, as one science encyclopedia does, as "using biological organisms, systems or processes to make or modify products." In other words, the first time somebody discovered the wondrous change wrought in grape juice by fermentation, or an excited baker got a little yeast in her dough and saw it swell up (think how brave whoever ate it must have been!), biotechnology was at work. In a broader sense, all agriculture is biotechnology, using biological organisms (plants and animals) to make a product (food). Through the centuries, selective breeding ...
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.
