Hi, everyone, welcome.I'm Greg, and this is…Mwaksy, where are you?Hello? Hello! I'm here!I'm sorry I'm late, I was setting up a demo. Sure!So, I have a number of bricks here in this wheelbarrow,and I ...
Levers, pulleys, and wheels–they’re tools that outline some of the most foundational principles in physics. But foundational principles are boring. What’s fun is using a lever to catapult a boulder at ...
A gear close gearA gear is a mechanical part with teeth that interlock with another gear or belt to transfer motion and power while changing speed, or direction in a mechanical system. is a special ...
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