Test and Teardown of a Julabo ED heating immersion circulator from a decommissioned laboratory. JULABO immersion circulators for controlling temperature +20 to +150 °C in …
WARNING!: Working with electricity is dangerous, all information found on my site is for educational purpose and I accept no responsibility for others actions using the information found on this site.
Read this document about safety! http://www.pupman.com/safety.htm
This experiment was first carried out by Lord Armstrong in 1893. Read the historical tales of this experiment.
De-ionized water acts in a special way when exposed to high voltage. This experiment uses two normal household drinking glasses filled with de-ionized water and a wire in each glass from a 20kV flyback transformer, I used one of my older drivers for the supply.
7th may 2009
The drinking glasses are filled to the brink with de-ionized water and put close together, the water will climb up the sides of the glasses and form a bridge of water between the two. Very carefully the glasses can be pulled apart to gain a longer bridge, but eventually it will not be able to sustain due to gravity.
I was able to make a 12 mm long water bridge as seen in these images.
Additional reading about this experiment
This is an easy and fun experiment to do if you already have a high voltage low current power supply at hand, reproducing experiments by scientists is a great way to acknowledge their discoveries and learn some new theory and history.