How Do They Do It?
An insider's look at the engineering and scientific miracles behind the things that form the modern world.
14. High Rise Window Cleaners, Jigsaw Puzzles, Field Hockey Sticks
10.0Jul 25, 2019 · 22 min
How do they keep the world's tallest twin towers clean? How do they make a jigsaw where every piece is unique? And, how do they craft Olympic level hockey sticks?