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Saturday, January 24, 2009
Be an Airport Security Guard
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Thursday, January 22, 2009
Eat Your Vegetables
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Tuesday, January 20, 2009
Naked Scientists and LEDs
In my diligent quest for understanding LEDs I have stumbled upon a gem of a site called The Naked Scientists. The Naked Scientists are a BBC science radio program, podcast, and web site all in one. They allow you to explore science, medicine and technology news, discoveries and breakthroughs being discussed by scientists and researchers today and include interviews with famous scientists of world-class reputation. What a treasure trove!
So how does an LED work? A Light Emitting Diode involves two types of semi-conductors sandwiched together: an N-type and a P-type. The N-type is heavy in extra electrons and the P-type is full of molecules that need electrons (think of these as electron attracting holes). By applying a current to either side, the electrons from the N jump over to the P and fall into the holes. When they do so they give up their extra energy as light. Check out the great description of this phenomenon at the Naked Scientist website.
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Thursday, January 15, 2009
Hey, Buddy, Can You Spare a Hundred Billion Dollars?
Zimbabwe was once considered the "breadbasket of Africa" but has been in an economic meltdown due to land reforms (confiscating land from white farmers in the early 1990s and causing food output to plummet) and sanctions placed on it by western countries, resulting in a failure to pay its debts to the International Monetary Fund. Coupling that with President Mugabe's disputed reelection in June 2008 has caused the country to collapse even further. It makes our current financial troubles look mild in comparison.
There's a fascinating series of photos on the Sojourner's website that show some of the challenges that hyperinflation brings. Like trying to carry enough money to buy that chocolate bar!
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Monday, January 12, 2009
Hacking Your Brain
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj3FcCqdOMm2VFUEqQDBk-jHM0vNKYB8I0ZuKtXARxgSAyfWURHeaTrSnrxKgCqLKPmAS2_mwsdvYC86CVo1jfl7TKRaUs3AyHrDac3viHOQEW5cMAkRJ_2k5CZuiSpzCrJuxFTlLVYUcQ/s320/Pinocchio.gif)
Try these out and then let all of our kidz know what your experience was by commenting on the blog!
DO YOU EVER want to change the way you see the world? Wouldn't it be fun to hallucinate on your lunch break? It's easy to fling open the doors of perception without: All it takes is a basic understanding of how the mind works.
The first thing to know is that the mind isn't a mirror, or even a passive observer of reality...
LinkTuesday, January 6, 2009
Canadian Coast Guard or Roller Coaster?
My father, SeƱor Spanky Senior, sent me some incredible photos of one of the Canadian Coast Guard's Self-Righting Lifeboats performing maneuvers off of Tofino, BC which is on the west coast of Vancouver Island. Apparently, these pictures were taken from shore via a tripod during an autumn storm last year. I stitched them together in Photoshop to create an animation to ensure your attention. Click on the picture above for a closer view. Quite the ride!
The self-righting lifeboats are part of the CCGs Search and Rescue (SAR) Program. The CCG's Pacific Region is responsible for 560,000 square kilometers (210K sq miles) of ocean and 27,000 km (~17K miles) of rugged and often inaccessible coastline. This is somewhat longer than Santa's naughty list.
If you have a penchant for being permanently damp you might want to consider a career in the Canadian Coast Guard. Arrr, Billy, have you ever been to sea?
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* Mr. Spanky drinks liquor for medicinal purposes only and in a responsible manner. He's old, he has aches and pains, and the citrus does wonders for his scurvy.
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