The thumb piano, known as a kalimba, mbira, and by many other names, is a lamellaphone that uses prongs called tongues, keys, or tines that you pluck to generate acoustic vibrations.
I demonstrate how to transfer a file from SketchUp, to be cut by a laser cutter in pieces using the Slice Modeler plugin desinged by TIG from http://www.cad-addict.com.
A stalwart of close-quarter magicians for years, the electronic flash gun is a simple device: a battery-powered, hand-held ignitor that uses a “glo-plug” to light a bit of flash paper and cotton, shooting a fireball a few feet into the air.
One of the most powerful additions to an X10 system is macro capability, where a computer continuously monitors the powerline for trigger signals, and responds by executing a timed sequence of additional X10 commands.