Edward Willett

Archives

Nuclear summer

Download the audio version.Get my science column weekly as a podcast.***As a science writer, I’ve written about a lot of things I’ve never expected to see up close. The outer planets of the solar system, for example. The bottom of the ocean.Nuclear reactors.I still haven’t reached Neptune, and I’ve never been to the bottom of the sea, unless you count the Captain Nemo ride at Disneyland. But as of this summer, I can say I’ve been inside a reactor.In August, my wife (an engineer) and I toured the Bruce A Restart Project on the eastern shore of Lake Huron, just north of Kincardine, Ontario, at the Bruce Power nuclear power plant.There are eight CANDU reactors ...

Posted by Edward Willett at 17:50, September 24th, 2007 under Blog, Science Columns | Comment now »

What did I do on my summer vacation?

I toured a nuclear power plant under refurbishment, a tour which included a rare visit (for anyone) inside the vault of a reactor. Those would be the fuel tubes, currently being replaced, in the background. That's my lovely wife Margaret Anne beside me.The reactor is at the Bruce Power plant near Kincardine, Ontario. This is the first time a CANDU-style reactor has been refurbished anywhere in the world. It was a deeply cool (albeit stiflingly hot, temperature-wise--we're sweating under those overalls) tour.Total radiation dose, for our 45 minutes or so in the decontaminated vault: roughly equivalent to one 10th ...

Posted by Edward Willett at 16:38, September 2nd, 2007 under Blog | Comment now »

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 ...

Posted by Edward Willett at 16:13, December 14th, 1999 under Blog, Columns, Science Columns | Comment now »

Happy 40th anniversary, USS Nautilus!

  There's not much in the way of interesting scientific anniversaries on my list for this month, which suits me fine, because it means I can focus on the one that interests me most:  the 40th anniversary of the launch of the world's first nuclear submarine, the USS Nautilus, on January 21, 1954. I don't know why, but submarines have always fascinated me.  Maybe it's because I've lived my whole life on the prairies, as far as you can get from an ocean, which lends the sheen of the exotic to anything to do with the seas.  Maybe it's from early exposure to the old television series Voyage to the Bottom of the Sea (recently reincarnated, for all ...

Posted by Edward Willett at 4:44, January 21st, 1994 under Blog, Columns, Science Columns | Comment now »

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, ...

Posted by Edward Willett at 22:56, November 20th, 1991 under Blog, Columns, Science Columns | Comment now »

Fission

We sometimes talk about living in the Nuclear Age, because it has only been in the last 50 years that we have managed to harness the power expressed by Einstein as E=mc2. But strictly speaking, uranium fission, which is what we think of when we think of nuclear power, isn't new. About 1.78 billion years ago (give or take a few million years) there was enough uranium trapped in the rock near Gabon, West Africa, for a chain reaction to begin on its own. For a million years, Gabon was home to the world's first nuclear reactor. Still, we egotistical humans don't really pay much attention to things that happened ...

Posted by Edward Willett at 11:01, November 13th, 1991 under Blog, Columns, Science Columns | Comment now »