MythBusters Demonstrates Superheated Water
Caramthros · Demo · 2 min · 2007 · YouTube title: Superheating of water (Mythbusters)
Why it's here
HN cites it as the standard demonstration of superheated water, in threads about microwaving water and tea.
What it covers
A short clip of the Mythbusters demonstrating superheated water in a microwave, which can erupt violently when disturbed.