Uncle Norm loves to play with his toy cars. He’s “experimenting” with angles and speed, but he needs a ramp. The Rads consult with an architect who teaches them about angles and how slope can affect the way a ramp works. They talk about triangles, and how different angles can change the speed of the cars.

The Gist: This episode is about types of angles: acute, obtuse, and right. The emphasis is on the right angle, right triangle and equilateral triangle and how they have been used in architecture and design through the ages.