A kids show about science is currently being filmed at the barge. Various artists from the Illutron group participate as experts, making clever and large scale demonstrations of the experiments. http://www.facebook.com/ext/share.php?sid=140552805541&h=NQ9A4&u=GtGm0&ref=nf

This show is about light, reflections and tries to explain what goes on inside fiber optic cables.
It is possible to achieve the same effect inside a water jet, if the flow of the water is laminar and layered.

Nicolas and I (Christian) build a laminar water maker. (The acrylic pipe with grey endcaps)
It works like this:

• Expanding the cross section of the pipe to slow down the water
  (waterhose 15 mm > 100 mm pipe)
• Forcing the water through approximately 200 drinking straws, to make the flow laminar (and layered)
• Adding light (12 halogen)
• Squeezing the water out a small diameter nozzle in the end.

As you can see it the image, we get this acrylic-rod-like flow of water, that keeps the light trapped inside. (at least as long as it is laminar) A little light escapes, which is why the stream of water looks like a bend glowstick. The bending of the light is very visible this way.

See the website here: http://bavian.tv2.dk/bavian/fratv/volt/