How Things Work

For many thing that we all day see in our lives, we don’t know how some of that things work. Here you can see how things really work.

How a Zipper Works

Illustrating Pi: Unrolling a Circle’s Circumference
How a Pill Press Works

How Walschaerts Valve Gear in
Steam Locomotives Works
How a Caliper Works
How a Radial Engine Works
How the Geneva Drive Works
How a Hypotrochoid is Made
How an Alpha Stirling Engine Works
How a Sewing Machine Works
How to Draw a Yin Yang Symbol
Using Circles