by DAVE » Thu Apr 11, 2013 2:35 pm
The colored oil psychedelic shapes were generated using an overhead projector which has the
capability to show transparencies. A plastic clear sheet was placed on the platen and covered
with a thin layer of water. Then drops of colored vegetable oil were dropped into the water,
and the plastic sheet was flexed to cause the colored oil to move around and create weird shapes.
Man, I haven't though about that in 40 years. I sold the projector I used in bands of the era long
ago. I had a lava light back then also.