The narrator explains that mathematics is much more than simply numbers and equations. He shows how different shapes, such as spheres and cones, can be found in nature and are used in technology both at home and in several industries.
In this clip, Charlie uses the behavior of the hoop's shadow to pinpoint the longitude and latitude where the photos had been taken. In order to make calculations involving the position of the sun in the sky, Charlie used a technique called spherical astronomy.
Beakman explains what adhesion and surface tension are while making DIY bubbles. Then using a rubber band, he shows that the soap film will stick to any edge inside of the rubber band regardless of shape. If you remove the rubber band, then the molecules will stick together in their smallest shape which is a sphere. Then a man demonstrates that there can be square "bubbles" and rainbow shaped "bubbles."