Edward Willett

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Eau de mer

"The smell of the sea" sounds romantic in books, but being a prairie landlubber, I always kind of thought that the sea, um...not to put too fine a point on it...is rather stinky. At least at first whiff.Meet the culprit: dimethyl sulphide."On bracing childhood visits to the seaside we were always told to 'breathe in that ozone, it's good for you'," said Prof Johnston. "But we were misled, twice over. Firstly because that distinctive smell is not ozone, it is dimethyl sulphide. And secondly, because inhaling it is not necessarily good for you."I knew I made a wise choice being born firmly landlocked.

Posted by Edward Willett at 2:54, February 5th, 2007 under Blog | Comment now »

Better fiddling through chemistry

The mystery of a Stradivarius's extraordinary sound has been solved, and it all comes down to the chemicals used to treat the wood, probably to ward off worms. The unique acoustical results were most likely a happy accident.

Posted by Edward Willett at 20:42, November 29th, 2006 under Blog | Comment now »

There’s no metal in a metallic smell

The distinctive smell you get from a pocketful of change held in your hand or a bunch of keys doesn't come from the metal at all: it comes from you.

Posted by Edward Willett at 20:08, November 22nd, 2006 under Blog | Comment now »

Photo of the Day: Argon Gas

It's everywhere!More photos here.

Posted by Edward Willett at 5:55, November 14th, 2006 under Blog | Comment now »

Not just lemon juice

Two Michigan State University researchers have unlocked the secret invisible-ink formula used by the former East Germany secret police, the Stasi:The Stasi's technique of transferring top-secret messages worked like a piece of carbon paper. An agent would place a piece of paper impregnated with the chemical cerium oxalate between two pieces of plain paper. As the agent pressed down to write, the chemical was transferred to the piece of paper beneath.The person on the receiving end of the message then developed the note with a solution of manganese sulfate, hydrogen peroxide and other chemicals. The process activated the cerium oxalate to reveal the hidden text. A successful reaction yielded orange writing.

Posted by Edward Willett at 21:10, November 7th, 2006 under Blog | Comment now »

This sounds very promising:

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 | Comment now »

“Musseling” in on the glue industry

Since all of my science columns are online, I frequently get questions out of the blue about past column topics. This week, for example, I received an e-mail from a mother whose nine-year-old had decided to do a third-grade science project on glue. They'd found my column on the topic from a decade ago, and wanted to know what kind of glue is the strongest. Like usual, I had to explain that, alas, writing a single short column on the topic did not make me an expert, and I couldn't answer the question. But though I wasn't able to help with the science project, it helped me: it prompted me to re-read my old column, which in turn primed me to ...

Posted by Edward Willett at 17:42, April 12th, 2005 under Blog, Columns, Science Columns | Comment now »

A new way to paint cars

  We bought a new car a little over a year ago, and while choosing what make of car to purchase naturally took weeks of research and consideration, it took us almost as long again just to decide on what colour of car we wanted. (We settled on "platinum green.") Painting an automobile involves many coats of paint, starting with an initial "electrocoat" designed to bond well to bare metal; that's followed by a primer, which provides a smooth base for subsequent coast, a colour coat, which may also provide special effects such as a metallic sheen, and a clear coat that keeps everything shiny. All of these layers currently involve solvents--very high levels of solvents, in fact; in standard base ...

Posted by Edward Willett at 17:12, February 18th, 2003 under Blog, Columns, Science Columns | Comment now »

Scientific stain removal

I like to write about the latest discoveries in cosmology and particle physics. But not all scientific research is focused on these frontiers. Some of it is aimed as close as--well, that spot of mustard on your pants. Textile experts at Cornell University have published a pamphlet  with detailed, laboratory-tested instructions on how to remove almost 250 different types of stains. Judy L. Price, a retired extension educator from Monroe County, N.Y., and Ann T. Lemley, professor and chair of textiles and apparel in the New York State College of Human Ecology at Cornell, worked together to update a 1975 Cornell publication called Removing Stains at Home. A ...

Posted by Edward Willett at 16:10, November 24th, 2002 under Blog, Columns, Science Columns | Comment now »

The science of stink

We all have our favorite smells, which remind us of our favorite things. The smell of baking bread may make you think of Grandma's house. The scent of lilacs may remind you of warm summer evenings. Then there our are less-favorite smells, like the smell of an outhouse on a hot day, or the smell of sneakers after a 20-mile hike. Bad smells are a hot topic of research right now at the Monell Chemical Senses Center in Philadelphia because the U.S. Department of Defense officials has asked the center to formulate a universally offensive odor the military could use for crowd control. The "odor bomb" they've come up with so far is said to ...

Posted by Edward Willett at 16:09, January 15th, 2002 under Blog, Columns, Science Columns | Comment now »