At normal listening distances, an array of twelve speakers arranged on the faces of a dodecahedron is a very good approximation of a point sound source, and the sound waves it produces are very close to perfectly spherical. A dodecahedron speaker can be a useful tool in acoustics research, and is definitely a fun toy […]
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OK, so I didn’t really use beer bottles, but it’s the same idea. This project is a cheap, easy way to make a perch for your bird. Plus, it looks better than most store-bought, cheaply painted models! Enjoy!
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Everybody thinks that you could just buy a motor at a hobby shop, but here’s how to make your own, preferably for science fairs.
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When tackling this project I had sewn some outdoor gear before but nothing this complicated. Shoulder/Hip straps were the most intimidating part, but once I got underway they went fine. Why did I decided to make a portage pack? Because I am often too cheap to buy a commercial or custom made item. The pack […]
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Use the label as a built-in resist!
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This dollar store DIY spy mic lets you listen from afar.
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