This instructable describes a cardboard version of an all-metal project that was featured in an issue of Popular Mechanics
from 1965 (http://www.tfcbooks.com/teslafaq/q&a_031.htm
). The turbine consists of a rotor suspended concentrically in a cylindrical shell. The rotor is fabricated from 16 shaft-mounted discs, each with a contoured edge to reduce turbulence. The rotor spins on low friction bearings.
An injection manifold directs a stream of air through a lengthwise slot in the turbine shell. The stream flows between the disc spaces in a spiral path and eventually exits through exhaust ports located around the center of each disc. This coil of moving air "drags" the discs in a circle causing the rotor to turn.
You can build this project using cardboard sheets obtained from end covers of discarded 3-ring binders, hand towel and bathroom tissue rolls, a high speed electric drill used as a lathe, basic hardware, white glue and simple hand tools.Caution:
Anything attached to the rotor axle must be securely held in place. With a sufficient air pressure, the turbine rotor can spool up to several thousand RPM in just a few seconds!