Geometry and Structural Engineering

Building a 72-story skyscraper like Trump Tower in New York City is no easy feat. That’s where structural engineers like Ysrael Seinuk come in. This movie explains how shapes are at the foundation of structural engineering.

Windsails

Sailing the ocean no longer requires triple-masted schooners-in fact you can do it on a vessel no larger than a surfboard. What's the secret to designing a windsail that can skim the surface of the sea at 20 miles an hour, yet respond instantly to a sail?