Does anyone have an explanation for this?

Wild guess, but I'm thinking the water is preventing the fire

Damn.. they should use that stuff to fight fire

The water absorbs the heat from the fire that’s meant to burn the cup So until the water has been heated enough, the fire can’t burn through

The video showcases water's high specific heat capacity, allowing it to absorb significant heat without much temperature rise, preventing the paper cup from burning. This is due to water's high thermal conductivity and specific heat, as detailed in resources like the Engineering Toolbox. Such properties are vital in practical applications, including firefighting where water cools fires, and in engineering for selecting thermally stable materials. The demonstration not only serves as a visual experiment but also aligns with scientific principles, highlighting water's unique thermal characteristics. Understanding these properties is essential for both theoretical and applied sciences, from thermodynamics to material science. The video thus provides a clear, engaging example of a fundamental scientific concept with broad implications.

water is a thermal conductor. the water molecules on the other side of the paper cup are leeching the heat energy enough to prevent open flame.

Specific heat capacity. You are welcome.

carbon strongly reacts with oxygen over 400°C. the water stops the carbon from achieving 400°C

the fire can’t go thru that water …

It’s always fun to watch water being boiled in a plastic bottle over direct heat… Great for adding plastic to your testicles as well😬

Here for the comments