3 ms·

I know! Holy shit, I did not know that you could boil water purely by means of subjecting it to the motion induced by a blender. Update: from the sound of thin

I know! Holy shit, I did not know that you could boil water purely by means of subjecting it to the motion induced by a blender. Update: from the sound of things, it's the action of the blades and the friction induced by their interaction with the water[1], rather than the swirling motion of the water itself, which sounded kind of ridiculous. [1] http://frozendrink.com/vitamix/household.html http://frozendrink.com/vitamix/household.html

arcticsilo 11y ago
There's blade-water friction as well as water-water friction. The link you provided does not quantify their relative contributions. [edit: Actually, I'm not even sure how much blade-water friction there is, due to the boundary layer effect.] There is also heating from cavitation bubbles collapsing in the water. If you look up cavitation heaters you will find a wacky rabbit hole with unsubstantiated claims about achieving heating efficiencies over unity. However, apparently there are some industrial processes that benefit from cavitation heating by getting even liquid heating and avoiding heating elements that can develop scaling. More info: http://hydrodynamics.com/cavitation-technology/scale-free-heating/ http://hydrodynamics.com/cavitation-technology/scale-free-he...