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Boiling water to snow[/\]chemistry.about wrote: This science trick is as easy as throwing boiling water into the air and watching it instantly change into snow.
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That is freaky! I think I prefer the regular quakes we have here in Southern California. 
Soren Madsen
"When you don't know what you're doing it's best to do it quickly" - Jase #DuckDynasty
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yes, it's real. and my FB feed is currently full of people demonstrating that it works in their back yards.
cold air, pot full of hot water => snow
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More to the point: given the amount of snow they already have, why are they adding any blooming more? 
Never underestimate the power of stupid things in large numbers
--- Serious Sam
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Don't forget we use Fahrenheit so -15 here is a lot colder than -15 there : )
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Yeah. Imagine if it was -40! How much colder would that be?
Never moon a werewolf.
- Harvey
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It works - really! A couple of points, though... The liquid immediately separates into droplets, vastly increasing the surface area exposed to the cold, plus it is moving, effectively the same as a stiff breeze. Both factors contribute to the rapid freezing. Besides, it's been really, really cold. It was so cold, in fact, that Miley Cyrus stuck to her wrecking ball, and a Liberal in D.C. was spotted with his hands in his own pockets!
Will Rogers never met me.
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Roger Wright wrote: and a Liberal in D.C. was spotted with his hands in his own pockets!
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These were American Yuppies throwing the water, so they used Perrier VSOP Vergèze Extra Lite, which retails for US $50 per liter. That vintage boils at only 60C.
“There are obvious things, and there are many obvious things no one tried, because no one needed to try them.” Sergey Alexandrovich Kryukov, January 1, 2014
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The freakiest thing I've seen was yesterday morning.
I have a tarp on the garage floor to catch the caked snow that falls off the car at night in a pathetic effort to stop the foul black melt from flowing over everything else I have stacked in the garage. In the morning there's a pool of water at the garage door from the melt, and when I open the door it flows outside. I always get a broom and sweep it out of the way into a nearby (2 feet away) drain so I don't get a thicker and thicker ice slab building up.
Yesterday, as I swept the water from the garage it almost immediately thickened, went slushy, then granular, and then within half a foot of the drain I was no longer pushing water but rolling a log of cookie-dough consistency frozen slush about 3 inches wide. Time was about 5-10 seconds from running water to the cookie dough event horizon.
Back home to Australia in 4 weeks. Can. Not. Wait.
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You guys have the weirdest things going on up there. In a disturbing way, I am almost jealous. Almost. 
Great, now I want cookies. 
Soren Madsen
"When you don't know what you're doing it's best to do it quickly" - Jase #DuckDynasty
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I heard it is 120 degrees Fahrenheit / 49 degrees Celsius in Australia. No comfy in between temperatures.
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120F?
Sounds comfy to me!
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Rob Philpott wrote: What says the CodeProject community?
Is this homework?
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I read some recent research that said water actually freezes more quickly from an initial hot temperature than from room temperature. It has to do with the molecular bonds that slow crystalization down being less present in hot water.
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Actually, it does work. Remember the actual temperature isn't 0c. It is more like -25c It is really really cold. At this temp. Your spit will freeze before it hits the ground. I live here. We did this earlier this week.
What is happening is the temp of the water is 100c it is hitting air that is -25c that is 125c wall. It is bursting the water immediately into droplets of steam. Immediate sublimation of the water.
It is cool to do.
To err is human to really mess up you need a computer
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Believe it or not, hot water freezes faster than cold water. It sounds totally dumbass, but it's true. This is a well-known phenomenon that has been noted over the centuries by multiple people. Recently, someone came up with a plausible explanation why (see https://medium.com/the-physics-arxiv-blog/d8a2f611e853[^])
And yes, some places in the world (like Alaksa) are cold enough for hot water to freeze before it hits the ground. You can easily din youtube videos of this by obvious amateurs who wouldn't know what Photoshop was if it introduced itself.
So it is believable.
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Freezes so fast, the ice is still warm. 
XAlan Burkhart
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I did not believe it either but gave it a try Tuesday morning when the temp was 6 degrees. Water won't work (tried it), hot water won't either (tried that). It has to be almost boiling and yes
it will in the air turn into a cloud of steam with very little ice/snow hitting the ground.
I also took near boiling water and tossed on a concrete slab. Most of it disappeared in the cloud
of steam. Very little hit the concrete where it made a splash pattern in ice that steamed away
in a few seconds leaving dry concrete.
Now I am waiting till summer when I can get some eggs and do some cooking.
And folks say there is nothing fun to do in Atlanta, GA !
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Some food for thought:
It takes 1 calorie to lower 1 gram of water 1 degree C.
But it takes 80 calories to turn 1 gram of 0C water to ice (which is why ice cools liquids so well)
Roughly, it is taking more energy to cool the water to freezing, if it is truly boiling.
Regardless, air is not a great conductor, but cold air, with a high wind chill, can SIMULTANEOUSLY steal some of the moisture, like it does to chap your lips, and quickly lower the water temperature.
Keeping in mind, that man-made snow is made by spraying WATER into the air and having it fall as snow, means this is quite possible at freezing temperatures. At temperatures SIGNIFICANTLY BELOW freezing, I would assume hotter water could certainly be used.
Oh, and the wives tail about putting HOT water in the Freezer to make ice cubes faster comes to mind.
THE ONLY WAY it could work, is that it forces the thermostat inside the freezer to register a higher temperature, and to kick in MUCH MORE COOLING in the same period of time.
This of course, assumes you test this in the same freezer on 2 separate runs. In effect, you are revving the engine of the freezer because of putting hot water in it. (again not boiling water,
but the key thing is that 80 calories to freeze is larger than the temperature to cool of hot water,
it becomes part of the limiting factor). Admittedly, if both trays were put in at the same time, the cooler water should certainly freeze faster.
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