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How to Make a Lava Lamp

By Andrew Gould 1 April 2008

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If you remember the 1970s, or you were alive, but cant remember much of it, you should vaguely recall the ubiquitous Lava Lamp. The liquid wax ǣLava mesmerised children and hippies for hours and was probably the craze of the era. You can still buy them, but making your own is way more impressive. FULL STORY >


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How to Make an Infrared Camera

By Andrew Gould 7 May 2009

The only way to see IR light (with its wavelength of 750 nm to about 100 ?m), is with an IR camera. Now you could go out and buy one, but you probably cant afford one, and then Id have nothing to write about. The alternative is to make your own. What we... FULL STORY >

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