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Title: Pole balancing top with 3" ball bearing gyroscope patented b [Go to resource]
Description: Pole balancing top with 3" ball bearing gyroscope patented by Dr. James Gray and made by griffin. License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: demonstration gyroscope Temporal: 1913 Source: Science Museum Identifier: 1914-457 Go to resource More Like this...
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