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February 2, 2008

Amateur genetic engineering, now

Yes, you can watch this talk on Programming DNA given by Drew Endy, a professor of Biological Engineering at MIT.

Banana-scented bacteria was an example project created by MIT undergrads for the 2007 iGEM international Genetically Engineered Machine competition which also had a surprise high school team that made it to the finals (there wasn't any separate category for them, they competed with MIT and the likes).

To get started you can download the Open Biohacking Kit and check out Endy Lab for information about their BioBricks and more.

When I took biology, we only cut things up and took them apart. Nobody suggested mixing them back together like a real-life Mr. Potato Head.

Fun hack: "Joule Thief"

I am not sure who coined the term Joule Thief, but I like it. It is used to describe a simple voltage boost circuit that "squeezes" otherwise wasted stored power (W) in a primary (non-rechargeable) battery, in the last lag of the battery's life where it suffer from voltage drop off.

As far as I know the majority of battery powered devices do not use a similar circuit to help extend the useful life of non-rechargeable batteries even in the excessively common low current demanding mass market device like TV remotes and such.

So here is one how to make a joule thief page by Alex Smith. Another make a Joule Thief from Big Clive, and you can watch a video podcast with Evil Mad Scientist Laboratories and Bre Pettis (if you don't just become obsessed with Bre's hair, it just creeps me out for some reason). Finally, there is another Joule Thief booster circuit that is available in kit form and uses two transistors, out of a total of 7 parts for ~70% efficiency. That could be almost invisible with SMT parts. Here is some more information from White LED Drive Circuit by Dick Cappels and Joule Thief wiki page from David Wagner.

The rise of Anti-Science in Canada?

Now I am starting to worry. The current Conservative government in Canada has "shuffled" one Rona Ambrose out of the Environment Minister sear in Janurary 2007, after only one year in this high profile cabinet post.

Then recently Natural Resources Minister Gary Lunn, most likely under direction or permission of the PMO fired the Linda Keen, president of supposedly the "independent" Canadian nuclear safety watch, Canadian Nuclear Safety Commission after the shutdown of Chalk River's medical isotope production, due to numerous unresolved safety violations that were well anticipated and documented well before the shutdown in reports given to the Natural Resources Department.

While Environment Canada's overall budget increased in 2007-08, Canadian Wildlife Services and many other departments within EC have concerns of preservation (and here) of endangered species conservation and similar programs.

Now, the Conservative government has decided to terminate the National Science Adviser position when Arthur Carty retires as the position is being phased out.

While I believe Ambrose switch out of Environment was necessary attempt at damage control, these other terminations of senior science-focused positions within the federal government is concerning. While Canada's national economy is doing well only through the means of industries that are science intense (oil & gas exploration and refining, mining of metals and uranium, high tech companies like RIM) right down to their daily operations, it is concerning to see what may be a lack of foresight that a could have dramatic long term consequents for many Canadians in the future.

I hope this is not the rise of the Luddites or of the more vague Anti-Science, sometimes disguised as or infiltrates religion and its organizations but which is far from synonymous.