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... Read more »
This year Paul had the idea to be a candle for Halloween. Though it is well known in our family that Mom is a good seamstress and crafter, Paul really didn’t know how she could take his idea and run with it. Read more »
Create your own foam stamp and print some simple fabric flags to make party décor that’s one-of-a-kind. Foam is inexpensive and easy to cut, with no special tools required. Combine printing with the fun of mixing fabrics and you might find yourself making a banner for every occasion! Try spelling... Read more »
This project is derived from LifeHacker alum Jason Fitzpatrick’s improvised clean/dirty dishes indicator, which uses the same CD + suction cup idea. When I tried Jason’s trick for myself, however, I found that, while the hole in an optical disc does fit nicely over the hub of a hardware-store suction... Read more »
