Simple Tesla turbine made out of CDs housed in a plastic CD “cake box” disc pack. Several different experiments are tried, using air, water, magnets, no magnets, saw blade attachment(!), etc. See the other videos on the YouTube link.

Revin’ Up the Tesla CD Turbine II With Magnetic Disc Pack – [via] Link

Related:

  • HOW TO – Build a 15,000 rpm Tesla Turbine using hard drive platters – Link