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digg: The world’s simplest electric train.

from my tumblr blog, tags: simple, simplest, electric, electric train, train, cool, gif, science

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Uploaded on December 2, 2014

digg: The world’s simplest electric train.

from my tumblr blog, tags: simple, simplest, electric, electric train, train, cool, gif, science

81 views
0 faves
0 comments
Uploaded on December 2, 2014
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