Adam Savage and the team put a Slinky to the test and try to use it to hoist a car. Then, they investigate if an ordinary pencil can really draw a line that's 35 miles long.
By entering your email address, you agree to our Terms of Use and acknowledge the Privacy Policy. discovery and its affiliates may use your email address to provide updates, ads, and offers.
To withdraw your consent or learn more about your rights, see the Privacy Policy.