This Halloween, celebrate the death of the incandescent lightbulb with a GlowBrick. These glassy cubes each contain a phosphorescent core surrounded by the image if a lightbulb. They spend the daylight hours collecting energy and then, in the night time, they become "a disembodied shining lightbulb hanging in midair." Maybe incandescent bulbs will all die, only to show up around Halloween as glowbricks. Maybe not. But while the glowbrick is cool, it isn't really all that useful. But maybe someday you can use one to show your grandkids what light bulbs used to look like.
If you're interested in that kind of entertainment, then head to the Science Toy Store, but keep in mind that it'll set you back about $40.
written by Hank, October 29, 2006
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