For decades, the question of how to keep a Slinky in perpetual motion has befuddled scientists and toy owners alike. Now, one man may have the answer to ensure the Slinky fun never stops. Matthias ...
Marble machines are the coloring books of the appliance world. A weirdly soothing attention vortex, this contrivance asks nothing and offers nothing except the joy of watching gravity pull a sphere ...
Marble machines are the coloring books of the appliance world. A weirdly soothing attention vortex, this contrivance asks nothing and offers nothing except the joy of watching gravity pull a sphere ...
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