I’ve had some fun playing around with old CDs and CD cases recently.
Here I’ve used a stack of cases to demonstrate the difference between some geometric solids.
On the left, we have a right rectangular prism. Give that prism a slight push in a direction perpendicular to a side and you get an oblique rectangular prism.
And if you give that original prism a push along a diagonal of the base, you’ll get one of my favorite geometric objects, a parallelepiped. It may not be the perfect parallelepiped, but I’ll take it!
- The Perfect Parallelepiped
- CD Packing Problems
- CDs and Cavalieri’s Principle
- CDs and Cavalieri’s Principle: Part 2