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EFFECT OF SOUND on
bees in a hive is illustrated by these photographs made by the
author. Bees are normally in constant motion, but they quiet
down at the sound of "piping," a beeping tone produced
by workers. The normal motion is shown by the blurred images
in the top photograph, which was made at a fifth of a second.
When piping was simulated and transmitted to the hive wall by
a vibrator, the bees became almost motionless, as shown by bottom
photograph, made at the same aperture and speed. |
