Perpetual motion with light bulbs.
Schlüsselwörter
bulb,
idea,
concept,
save,
lamp,
massa,
wire,
shine,
timer,
green,
power,
force,
glasses,
bright,
impact,
motion,
effect,
cradle,
action,
hanging,
glowing,
balance,
gravity,
physics,
science,
electric,
activity,
pendulum,
abstract,
swinging,
solution,
preserving,
perpetual,
invention,
innovation,
technology,
efficiency,
economical,
illuminated,
conservation,
incandescent,
illumination
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