He became famous after scaling El Capitan without protective equipment in 2017. Now the 40-year-old athlete has completed the ...
YouTube on MSN
How to make a balsa wood glider
A balsa wood glider is really easy to make despite the physics involved in its flight. Make one yourself and have a ton of ...
Amazon S3 on MSN
Building a homemade slingshot crossbow using household materials
The science pros at TKOR build a crossbow slingshot to demonstrate elastic energy.
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