Amazon S3 on MSN
How to construct a powerful mini catapult from an Altoids tin
The science experimenters at TKOR construct a compact yet powerful mini catapult using an Altoids tin and simple mechanics.
Amazon S3 on MSN
How to build a functional launchpad for mini model rockets
The science experimenters at TKOR build a stable launch platform designed for safely sending small model rockets into the air.
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