Want to watch better-quality PBS Video? Sign in to access HD streaming!
Candle see-saws, balanced meter sticks, ‘getting a grip’ and more! The Curious Crew explores how the force of torque helps us turn and leverage things.
STEM Challenge: Design a One-Handed Spoon Catapult.
Curious About Careers: Robotics Engineer Sid Mosley.
Upgrade Your Viewing Experience
This video is available to CallSign viewers with a Passport account. Passport gives you access to a wealth of premium content not previously available online, including full seasons of your favorite shows.