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aerial shell for pyrotechnic display
Make a modular tesla valve out of foam clay - a good way to demonstrate engineering and…
Just Some Ordinary Concrete Cufflinks
Who Needs a Meteorologist? Measure Humidity the Old-School Way, With a Sling Psychrometer!
Make Your Own Never Wet/Ultra Ever Dry (Hydrophobic Coating)
Salt Water Density Experiment
Make: A Tesla "check" Valve Mod. out of Foam clay!
How to de-drown your wet cell phone
Wet Cell Battery out of Food
Posted:Feb 17, 2009
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