Author Archives: hugocamargo

Documentation – “Intergalactic sound of the extraterrestrial nightlife”

The idea of this project, which is about the different interpretations of what is a “water hole”,  is better explained here:

https://timesupteaching.wordpress.com/2011/04/11/intergalactic-sound-of-the-extraterrestrial-nightlife/

During the cold (and sometimes rainy) days of the workshop, my task was to create a vortex by building a working tesla turbine made mainly of CDs and magnets. After looking for tutorials on the internet, I’ve found good experiments with tesla turbines made of cheap and/or found materials, such as CDs or computer hard drives. I would recommend checking the experiments posted at http://www.instructables.com since they were very helpful to me.

The first step was to assemble the CDs and the magnets.  I used a CD spindle with its cover as a case. I polished the spindle and the CDs beforehand in order to minimize the attrition and make it easier for the water when flowing inside it. Through a small hole carefully cut into the spindle case, I hot glued a piece of a pipe and an inlet  and outlet nozzle, which allowed me to use the turbine with any garden hose and control the pressure of the water. This will determine how fast the turbine will run.

assembled turbine: spindle and case, nozzle, pipe, CDs with strong magnets between them.

The first tests, realized during the day, produced actually better results than the final one during the presentation. That happened due to the fragility of the materials used on this prototype. Hot glue and a CD spindle plastic case seemed a good option at first, but they cannot avoid the leaks  that the water pressure may cause after several tests. For testing purposes and in order to understand the transmission of mechanical energy through a magnetic field interaction in a tesla turbine it was perfect, since it is one of the quickest and cheapest ways to build it.

first test to check with the turbine was running properly

For the presentation at the end of the week I’ve used another CD spindle case as a water container. I filled that with water and it was positioned on the top of the turbine. The magnetic energy produced by the water spinning the discs could create a small water vortex.

At the end of the workshop I was satisfied with the results and could understand how a water vortex can be created in a simple way. To improve it, the solution would be to test other materials to unsure that the turbine will not present any leaks and will work flawlessly. I should keep it as silent as possible since I’m interested also in the sound of the water vortex. That’s why it’s better to keep it without pumps or any other thing that could create extra noise.

the beauty of a small vortex during the presentation

Advertisements