by Tony Wayne

The equipment for this lab can be made very inexpensively.

  • The base is a 4' x 1" x 3" piece of wood.
  • The pvc pipe I use has an outside diameter of 7/8". Iy cost me $0.73 for a 10 foot section as a local hardware store, (bought September 2000.)
  • It uses cross supports made of 1/4" diameter wooden dowel rod, ($0.50 per 3 foot stick.)
  • The wooden dowels are held on to the pvc pipe with rubber bands.
  • The foam insulation is cut in half with a razor blade. Use a fresh blade.A fresh blade will take less effort to cut, make clean cut and is safer than a dull blade.
  • The foam insulation is held onto the dowel with a piece of tape under the tube.
  • To connect several insulation tubes together, is a piece of pvc pipe big enough to snugly fit around the insulation. I use a 1-1/4" pvc pipe coupler.

Suggestion: It may cost a little more, but you could use a smaller diameter pipe or dowel rods and for the vertical posts and use clothes pins for the horizontal supports instead of 1/4 dowels.


Here is a QuickTime movie illustrating how to attach the dowels to the pvc pipe.


Click here to go back to the lab.



Click on an image to see an enlargement.

This page is part of the Virginia Instructors of Physics, V.I.P.web site. ... An affiliate of the Virginia Association of Science Teachers
Web server space provided by the Science Museum of Virginia