it against a particular spot on that wall. it was really magic!
in a future column i might even tell you about the crystal radios i used to build as a child. those things were really cool. they, almost magically, worked without batteries or being plugged in. (talk about saving energy.) and you could build one with a small block of wood, some thumbtacks, a roll of copper wire, an empty toilet paper roll, a razor blade, a safety pin, and a fifty cent ‘earphone’ from radio shack. you could only hear a few stations on a crystal radio… but late at night, when all was quiet, the fact that you 