Make Hydrogen Gas in Distilled Water(video)

In this video researchers show how electrolysis cell is making hydrogen gas in distilled water, with no electrolyte. This experiment is supposed to be impossible,but they demonstrate that it work.With this experiment you can make vehicles to run with water.
I want to tell you that i make this experiment at home but I exploded a glas bottle,
luckily I was behind a safety wall ,and in conclusion please never do this in a glas bottle
for safety reasons.Only use plastic bootles!Here is the video: