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Study may explain counterintuitive effect of why hotter systems can cool more quickly
phys.org ^ | October 23, 2017 | Lisa Zyga

Posted on 10/23/2017 10:29:39 AM PDT by Red Badger

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1 posted on 10/23/2017 10:29:39 AM PDT by Red Badger
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To: Red Badger

So, the question is, what is the ideal temperature to store the ice cream base before churning?


2 posted on 10/23/2017 10:35:12 AM PDT by JohnnyP (Thinking is hard work (I stole that from Rush).)
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To: JohnnyP

0°F............................


3 posted on 10/23/2017 10:39:09 AM PDT by Red Badger (Road Rage lasts 5 minutes. Road Rash lasts 5 months!.....................)
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To: Red Badger

Good. I don’t want to learn how to pronounce Mpemba effect.


4 posted on 10/23/2017 10:40:29 AM PDT by I want the USA back (Liberalism, like insanity, is the denial of reality.)
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To: Red Badger
Does hot water freeze faster than cold water?

"We theoretically showed, at least in the case of a gas, that a system's temperature evolution and thus its cooling and/or heating rate do not depend on initial temperature alone, but also on the previous history of the system that control the initial value of the additional variables," Santos said

That just reeks of junk science, if you ask me.

5 posted on 10/23/2017 10:47:40 AM PDT by ClearCase_guy (Benedict McCain is the worst traitor ever to wear the uniform of the US military.)
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To: Red Badger

How do you churn something that’s 32° below freezing?

Maybe you meant 0°C?


6 posted on 10/23/2017 10:48:02 AM PDT by JohnnyP (Thinking is hard work (I stole that from Rush).)
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To: Red Badger

Hah.

QED Coherence and the Thermodynamics of Icecream.

Is there grant funding available for that research?


7 posted on 10/23/2017 10:48:25 AM PDT by HLPhat ("TO SECURE THESE RIGHTS" -- Government with any other purpose is not American.)
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To: Red Badger

The rate of heat transfer is directly proportional to the temperature differential, so yes, a hotter system eill lose heat faster than a cooler one. However, the former has more heat to lose.

If you were driving from Chicago to LA, and someone else was driving from Denver to LA, and you could go 100 mph from Chicago to Denver but only 50 mph from Denver on, and you both started at the same time, who do you think would get to LA first?


8 posted on 10/23/2017 10:53:08 AM PDT by IronJack
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To: IronJack

That sounds like one of those HS math test questions I HATED!...................


9 posted on 10/23/2017 11:02:08 AM PDT by Red Badger (Road Rage lasts 5 minutes. Road Rash lasts 5 months!.....................)
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To: JohnnyP

At 0°F it’s already ice cream....................


10 posted on 10/23/2017 11:03:10 AM PDT by Red Badger (Road Rage lasts 5 minutes. Road Rash lasts 5 months!.....................)
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To: Red Badger

What nonsense. This is a blatant violation of thermodynamic principles probably fostered by some African wanting to deposit a million dollars in Red’s checking account. Red, seriously, are you this gullible?


11 posted on 10/23/2017 11:04:12 AM PDT by Neoliberalnot (Marxism works well only with the uneducated and the unarmed)
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To: IronJack; Red Badger

rate of heat transfer is directly proportional to the temperature differential, so yes, a hotter system eill lose heat faster than a cooler one.”

Red, listen to Iron man Jack. However, ice cream components at a higher temp will not freeze faster than those at a lower temp. African science is not science. Send me your checking account number Red, I have a million bucks to transfer.


12 posted on 10/23/2017 11:11:55 AM PDT by Neoliberalnot (Marxism works well only with the uneducated and the unarmed)
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To: Red Badger

The hypothesis said it’s faster to make ice cream when starting with warm milk.


13 posted on 10/23/2017 11:15:25 AM PDT by JohnnyP (Thinking is hard work (I stole that from Rush).)
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To: HLPhat

“Is there grant funding available for that research?”

only if it adds another “proof” of global warming ...


14 posted on 10/23/2017 11:19:23 AM PDT by catnipman ( Cat Nipman: Vote Republican in 2012 and only be called racist one more time!)
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To: IronJack

“If you were driving from Chicago to LA, and someone else was driving from Denver to LA, and you could go 100 mph from Chicago to Denver but only 50 mph from Denver on, and you both started at the same time, who do you think would get to LA first?”

The guy with the newer car?


15 posted on 10/23/2017 11:25:18 AM PDT by RipSawyer (Racism is racism regardless of the race of the racist)
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To: Red Badger

I’m not sure I see the question - higher heat means higher differential which would mean a higher flow - it’s no different than:
1) higher pressure systems flowing to lower pressure systems at a higher rate than medium pressure systems to low.
or
2) osmosis where high concentration to low flows at a faster rate than medium to low.

It’s a gradient issue - I’m not sure why this is even a question.


16 posted on 10/23/2017 11:40:16 AM PDT by reed13k
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To: reed13k

I’m not sure, but this has to have something to do with gravity...................


17 posted on 10/23/2017 11:47:09 AM PDT by Red Badger (Road Rage lasts 5 minutes. Road Rash lasts 5 months!.....................)
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To: Neoliberalnot

The hot water freezes faster because of ‘white privilege’.............everybody knows this...................


18 posted on 10/23/2017 11:49:08 AM PDT by Red Badger (Road Rage lasts 5 minutes. Road Rash lasts 5 months!.....................)
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To: JohnnyP

When I was a kid, we didn’t have an ice cream maker, so we made ice cream in ice trays. The mixture was poured into the ice trays, straight from the stove....................


19 posted on 10/23/2017 12:10:33 PM PDT by Red Badger (Road Rage lasts 5 minutes. Road Rash lasts 5 months!.....................)
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To: Neoliberalnot

It was ‘discovered’ by an African.

Whereupon he exclaimed ‘White Privilege’!

Only white people used hot water, and only privileged white people at that.

Ergo, the hot liquid would freeze faster to please white people......................


20 posted on 10/23/2017 12:13:58 PM PDT by Red Badger (Road Rage lasts 5 minutes. Road Rash lasts 5 months!.....................)
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