D. Marble challenged me to debunk one of his videos.
This was too easy.
In this video I show that D. Marble has a fundamental lack of understanding of the science he purports to undermine.
This couple has been on the road since 2010 with plans to travel the w
How to make high speed motor from screws , amazing idea with screws
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Pencilmate breaks all the walls in this OFF THE WALL Pencilmation Comp