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Jul 4, 20071

How Nerds Cook Hotdogs

Tags: Science

Another honorary 4th of July post I just can't resist. Normally, I'd say, "...kids, don't try this at home." All appropriate burn-your-house-down type disclaimers are hereby offered. But hey, if you can figure out a cooler way to cook a dog, let me know.All you need area couple of forks, matching alligator clips and an old power cord. Plug that sucker into the wall, perhaps via a power strip and viola...smoking dogs in a couple of minutes.AND you can demonstrate the voltage gradient across the dog by just sticking LEDs into the dog (with the leads in line with the forks.) You can even have fun adjusting the lead spacing and trying to explain why the LEDs don't burn out or why the brightness changes.But PLEASE. REMEMBER. THIS. IS. NOT. SAFE. If you are crazy enough to try this even under adult supervision (my wife says I don't qualify here) Don't touch anything when it is plugged in.(From evilmadscientist.com)Happy 4th!

Jul 4, 20070

For the 4th: Make Your Own Sparklers

Tags: Science

In honor of our nation's anniversary, I urge all you innovators to go forth and make your own sparklers!From about.com:What You Need:- iron wires or wooden sticks- 300 parts potassium chlorate- 60 parts aluminum fines, flitter, or granules- 2 parts charcoal- 10% dextrin in water solution- 500 parts strontium nitrate (optional, for red color)- 60 parts barium nitrate (optional, for green color) All these ingredients are legal and can be ordered or bought at a chemical supply store like Science Stuff or Chem Bargains. Mix the dry ingredients with enough dextrin solution to make a moist slurry. Include the strontium nitrate if you want a red sparkler or the barium nitrate if you want a green sparkler. Dip the wires or sticks in the sparkler mixture. Be sure to leave enough uncoated space at one end to safely grasp the finished sparkler. Allow the mixture to dry completely before igniting the sparkler. Store sparklers away from heat or flame, and protected from high humidity.

May 28, 20070

Water Baloon Popping In Slow Motion

Tags: Photography, Science

May 15, 20070

Now THAT’S a Rocket Launch!

Tags: Education, Science

Check out this Scout troop from Austin, TX who just shattered the world record for "Most model rockets launched in a 5 second window." Their new record of 965 crushes the old mark of 400.

May 15, 20070

The Awesome Power of Tornadoes

Tags: Photography, Science

Photographer Mike Theiss recently toured Greensburg, Kansas, the small town at ground zero of that monster tornado. Having seen the stock news footage on CNN, I still hadn't really internalized the true power and energy unleashed in the EF-5 storm with winds howling at over 200 mph. Check out these photos of the utter devastation, linked directly from Mike's site.From Mike's comments on Spaceweather.com:"The power of the wind from this EF-5 tornado was evident," says Theiss. "I documented a fork stuck in a tree, a Kansas license plate ripped off a car and stuck in a tree, ...

Apr 24, 20077

Smartfish: A Hydrogen Fuel Cell Powered Airplane

Tags: Science, Technology

With declining budgets at NASA and an airline industry beset with growth pains, soaring fuel costs, and bankrupt carriers it has been some time since I have seen true innovation in the aerospace industry. For decades, airplanes have advanced very little despite tremendous strides in tools, materials, and engines. Incremental tweaks on 20+ year-old designs comprise the bulk of the commercial and military complement. But I now have new hope of a resurgent industry.Check out the Smartfish personal aircraft design project that has been the ongoing masterwork of a rock-star design team from Germany and Switzerland since 2003. Smartfish might seem like an odd name for an airplane until you get a look at it's profile; it is very piranha-like indeed.The basic concept is to design and build a new generation of personal aircraft using the latest software design and simulation tool, aerodynamics, composite materials, and jet engine technologies. When aggregated into one cohesive design demonstrating unprecedented efficiencies, the initial results promise a tiny craft whose entire body provides lift rather just relying on the wings. The svelte profile of the composite material lifting body introduces less drag with modest wings, and ...

Apr 4, 20070

A Great Book for the Kids

Tags: Education, Science, Technology

Always on the lookout for more science education resources, I stumbled across a real gem last week. There are any number of "kids science experiment" style books, but precious few articulate fundamental engineering principles in such a way that elementary students can get their hands dirty and build something at little or no expense.Check out "How Things Work" by Neil Ardley. You can purchase it here from Amazon.The book guides readers through an introduction to a broad range of foundational engineering challenges from structural design, to aerodynamics of birds and planes, to hydraulic valves and pumps, and almost everything in between. Each chapter includes clear directions on how to build prototypes with paper, cardboard, straw types of materials. They are FANTASTIC. The demo projects are by-and-large rather simple and short, but do a great job demonstrating fundamental principles and techniques. They then become the perfect platform to ask, "so how would you make your widget ______ [Stronger, Faster, Lighter, etc...]?" Then you just give 'em a bucket of parts and watch them go.The cover touts a target demographic of ages 8-14 but I already have my 4 1/2 year-old daughter working on a couple of ...

Mar 17, 20070

More on Mary’s Spectrograph

Tags: Education, Science

After digging around the web for a bit, I found Mary Masterson's web sites that chronicle her life, with the Littrow Spectrograph project figuring prominently. (See my earlier post on High School Innovation for the initial story on Mary's award-winning science fair project.)Check out the Spectroscopy web site that Mary put together including links to the MIT science institute for high school students she recently attended FREE OF CHARGE!She also has a more technically oriented site that describes her project in detail, including nice photos of her equipment in operation. The real beauty of her shining example is that Mary covers all the scientific bases from strong inquiry and innovation, disciplined and meticulous experimental techniques, strong communication and presentations skills (including web, paper, and poster publication), all the way to strong participation in the broader scientific community to learn from others at world-class institutions and share her ideas with mentors and peers.One of the things I really love about Mary's project is how she was able to assemble a first-rate solidly designed and constructed bit of scientific equipment for under $300. At first glance, the whole assembly looks like a bit of expensive commercial-grade laboratory equipment, but the ...

Mar 16, 20070

High School Innovation

Tags: Education, Science

17 year-old Mary Masterman of Oklahoma City just won $100,000 by designing and building a Littrow Spectrograph system with just under $300 worth of parts in Intel's Science Talent Search competition. Not a bad investment after all, not to mention her high likelihood of getting into the college of her choice.Here is a picture reproduced from the Make Magazine web site of Mary in front of her contest-winning poster.Note in particular, the three hefty laboratory notebooks resting on the table. That gives you an idea of the likely efforts, scope, and duration of a genuine science research and development project that is actually approachable in high school with the right mentorship and guidance.Plus she got to meet the President.

Mar 16, 20070

A Call For More K-12 Science Resources

Tags: Education, Science, Technology

In the spirit of leading our nation to technological greatness, I hereby issue a call for your favorite science and technology resources, comprised of either online or traditional media. Please post comments here with links, stories, pictures to your hidden, or not so hidden gems!

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