A demonstration of supercooled water 'snap freezing'. When water is supercooled it remains liquid below it's normal freezing point. Shaking it gently can activate the freezing process.

See also:

• Another demonstration using beer instead of water.

Read more:

• http://en.wikipedia.org/wiki/Supercooled

Learn to do it yourself:

• http://www.sciencebuddies.org/science-fair-projects/project_ideas/Phys_p033.shtml

Original description:
After watching some videos of people supercooling water, I had to try myself. This is my third try using Fiji water, all successful. [Edit x 2] Wow this vide...