this post was submitted on 23 Jun 2024
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Memes

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Post memes here.

A meme is an idea, behavior, or style that spreads by means of imitation from person to person within a culture and often carries symbolic meaning representing a particular phenomenon or theme.

An Internet meme or meme, is a cultural item that is spread via the Internet, often through social media platforms. The name is by the concept of memes proposed by Richard Dawkins in 1972. Internet memes can take various forms, such as images, videos, GIFs, and various other viral sensations.


Laittakaa meemejä tänne.

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[–] [email protected] 10 points 5 months ago* (last edited 5 months ago) (13 children)

By spinning the can in ice water, it increases the rate of transfer of heat energy from the drink in the can, to the can itself, to the ice water. It's like how stirring the ice in a cup of not-cold water will melt the ice / cool the water faster.

At a molecular level, you would see an increase in the number of collisions between ice molecules and liquid molecules. The collisions must occur for heat transfer to happen, so more collisions = more cooling. It is also the same reason why a heatsink can draw more heat from a processor when a fan blows air over it ~~(until the air is saturated with heat)~~.

[–] [email protected] 4 points 5 months ago (4 children)

How can air get heat saturated? i followed you thus far but its not like humidity, you can always add more heat the question is if a faster flow decrease the time for each molecule to absorb the heat/motion and thats why sometimes higher flow wont yield in better cooling

[–] [email protected] 2 points 5 months ago (1 children)

How can air get heat saturated? i followed you thus far but its not like humidity, you can always add more heat

When the temperature of the air and temperature of the object you want to cool reach an equilibrium, no heat gets transfered anymore.

[–] [email protected] 1 points 5 months ago

That is equilibrium not saturation.

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