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Time Machine Ball Bearing Clock



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Time Machine Ball Bearing Clock

Watch time pass while observing the science of physical energy and the power of machines.


A battery-operated motor lifts a steel ball bearing onto a durable concentric track at regular intervals. Here it moves with others on a slow downward course, both halted and propelled by 'see-saws' that tip when correctly weighted. Correct time can be read by observing the numerals that the balls are aligned with - hours and minutes are both indicated.

This intriguing conversation piece is encapsulated in a clear, impact-resistant case. The base measures 10" x 6", the clock mechanism stands 8" high.

Powered by a 6V AC adapter (not included) or via 4 "C" batteries (not included).

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Gift Wrap Available


Item #DescriptionPriceQty
3082445Ball BearingTime Machine Clock

In stock and ships immediately.
 $39.95
3082087Eveready Alkaline C Battery

In stock and ships immediately.
 $1.25





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 -  Monday, July 06, 2009
WONDERFUL MATH TEACHER!!!
Reviewed By: Barbara (kearny, AZ)
This clock is a MUST HAVE in my classroom. It shows the dynamics of mathematics and how this important concept is used in everyday life!!! Plus, its a real conversation starter!

 -  Saturday, June 14, 2008
Defective
Reviewed By: John (Honolulu, Hawaii)
Clock would not keep accurate time. It would usually get off time when switching to 1:00 when most of the balls are moving. Perhaps it was a misaligned track or balance was not right. Got tired of resetting the time so returned for a refund.

 -  Tuesday, May 19, 2009
Runs Slow
Reviewed By: Mark (Richardson, Texas)
Very enjoyable but mine runs slow too,


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