4 ms·

It looks like the gas collects in the pet bottle and the reaction stops when the bottle is full.

• Filligree 2y ago
  And then you have a bottle of what is colloquially termed “bang-gas”, which is happy to release all the gathered energy in a joyous millisecond detonation.
  • adrianN 2y ago
    It looks like you have a bottle of oxygen and one of hydrogen.
    • Filligree 2y ago
      And they happen to be the same bottle.
      • adrianN 2y ago
        If you carefully look at the picture, you'll see two bottles surrounding the whisks and the text says "a pair of PET bottles".
• thfuran 2y ago
  I'm not sure pressure would ever stop electrolysis (short of fusion interrupting things), but I do know that it's sometimes performed industrially in excess of 10,000 psi and there's no way that container is getting anywhere near there before opening one way or another.
  • adrianN 2y ago
    The electrodes lose contact with the solution if enough gas is collected.
    • thfuran 2y ago
      Ah, I didn't zoom in enough to see the bottles around the whisks.