Halley's Lamp, light bulb, cable, 4 electrical timers, math sheet, variable dimensions, 2009
A lamp is plugged into a series of 4 electrical timers, slowing things down enough so that the light turns on just once every 75.7 years.
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Halley's Lamp, light bulb, cable, 4 electrical timers, math sheet, variable dimensions, 2009 A lamp is plugged into a series of 4 electrical timers, slowing things down enough so that the light turns on just once every 75.7 years.
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