Amazon S3 on MSN
How to build a powerful air vortex smoke shooter device
The science experimenters at TKOR design a handheld air vortex device capable of shooting visible smoke rings with force.
Amazon S3 on MSN
How to create a perpetual water vortex fountain for decor
The science experimenters at TKOR demonstrate how to design a continuous water vortex fountain that endlessly circulates for ...
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