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“Men may kiss men.”

White supremacist trying to form a straight-pride parade accidentally lets truth slip at city council meeting

Video Clip SS29299 (Water Droplets Bouncing On A Hotplate)

The Leidenfrost effect is a physical phenomenon in which a liquid, close to a surface that is significantly hotter than the liquid’s boiling point, produces an insulating vapor layer that keeps the liquid from boiling rapidly. 

Because of this ‘repulsive force’, a droplet hovers over the surface rather than making physical contact with the hot surface.

The effect can be seen as drops of water are sprinkled onto a pan at various times as it heats up. Initially, as the temperature of the pan is just below 100 °C (212 °F), the water flattens out and slowly evaporates, or if the temperature of the pan is well below 100 °C (212 °F), the water stays liquid. 

As the temperature of the pan goes above 100 °C (212 °F), the water droplets hiss when touching the pan and these droplets evaporate quickly. Later, as the temperature exceeds the Leidenfrost point, the Leidenfrost effect comes into play. 

On contact with the pan, the water droplets bunch up into small balls of water and skitter around, lasting much longer than when the temperature of the pan was lower. This effect works until a much higher temperature causes any further drops of water to evaporate too quickly to cause this effect.

scientist: fantastic work, recruit.

technician: thank you, sir!  what do you want us to do with it now?

scientist: put it in my hollow glass cylinder filled with blue-green fluid and connect one or more thin plastic pipes to its body.

technician: do you want us to occasionally blow some air bubbles upward through the liquid?