The team reveals the secrets of a samurai sword's deadly blows, then Jeff and Matt get a close look at the moves of a professional pool player. Finally, hummingbirds are filmed from a whole new angle with x-ray photography to display the inner workings.
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.