Sunday, December 21, 2008

Isaac Newton's great idea told in whirligig form

There can be no doubt: artist Ben Thal has taken whirligigs to a new level -- many having up to 30 moving parts and multiple actions. The whirligig shown here depicts Sir Isaac Newton's epiphany regarding gravity in animated wind-powered 3-dimensional form. Wow.

To learn more about the remarkable man behind this and other fantastic creations check out this great profile on him: Spin Doctor -- Former Surgeon Ben Thal Builds Humor Into His Witty, Whimsical Whirligigs.


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Saturday, December 20, 2008

Working replica of the Antikythera mechanism

Working replica of the Antikythera mechanism
A British museum curator has built a working replica of the Antikythera mechanism -- a 2,000 year old machine found off the coast of Greece in 1902.

The Antikythera mechanism was used to track the movements of planetary bodies (including their various eccentricities) as well as for determining the dates for Olympic games.

Here's a full article on the working Antikythera reproduction: World's First Computer Rebuilt, Rebooted After 2,000 Years.

For even more information on this device, check out the book called Decoding the Heavens: Solving the Mystery of the World's First Computer.



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Sunday, October 12, 2008

Milestones in Science - DIY Great Experiments

Milestones in Science
When I was a lad, science seemed, lamentably, mostly a series of facts and formulas that didn't really convey anything about the times, the world, or the minds from which it came. This is one reason I ended up studying the history of science rather than science itself. Here is a well-conceived kit that attempts to walk the new scientist through the great experiments of history. I may well treat myself to this kit to learn first-hand that which I have learned second-hand.

From the product description:
Milestones in Science combines history and science in a fun, hands-on way. Children learn about famous scientists and inventors while reproducing 100 of their most significant experiments. Beautifully illustrated 96-page book walks junior scientists through a world of microelectronics, atoms, light, magnetism, and much more. Covers more than 140 scientists and civilizations. Made in Germany and includes 95 pieces. Requires one "9V" battery. (Age 10+)


Here is where you can order Milestones in Science.

For the more mature and readerly with and less experimental bent, I cannot recommend highly enough A Short History of Nearly Everything by Bill Bryson.


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Tuesday, September 16, 2008

Hand-Cranked Wimshurst Electrostatic Generator

Hand-Cranned Wimshurst Electrostatic Generator
This working model of a Wimshurst Electrostatic Generator is mounted on a wooden base and stands 15" tall.

The Wimhurst type of generator consists of two circular plastic plates, which rotate in opposite directions by a hand-cranked belt drive mechanism. On each disc are pieces of metal foil, which both generate and carry small charges of electricity. Brushes on the front and back distribute the charges to a Leyden Jar, which stores the charge like a modern capacitor.

As the plastic discs revolve, a high voltage spark will jump between the electrodes when they are brought close together. Cool!

Here is the Wimshurst Electrostatic Generator available at Edmund Scientifics.

If you would rather build your own Wimshurst generator you will want the book: Homemade Lightning: Creative Experiments in Electricity.


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