During the summer, we've all been through the problem with an uncomfortably hot computer. Whether it is in the middle of your Orange is the New Black marathon or because you are working on a term paper, it happens. Usually, your fan starts to make a lot of noise and your legs feel like they are going to burn off.
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However, a Japanese Twitter user found what is probably the best (and easiest) solution for that problem: stack copper coins on top of your computer to cool it down. Really, it is simple thermodynamics.
Japanese Twitter user akinori_suzuki stacked 10-yen coins, which are made out of copper, on top of his laptop.
It is brilliant because copper has more thermal conductivity than aluminum or plastic has, which is what most laptops are composed of. Since the copper coins are cooler than your computer (thanks to the laws of thermodynamics), they will soak up the heat.
Interesting Engineering, explains it a little better: "If anyone is having a problem with their MacBook Pro getting too hot and not cooling down, try using some 10-yen coins you have lying around the house. The copper in the yen is a better conductor of heat than the aluminum of the computer and is good for getting the heat out."
The internet took over and it turns out that you can use this for a desktop tower as well.
To be fair, it isn't widely tested so there isn't a guarantee that it will work for every computer, but it could make your weekend binge sessions a lot more fun and comfortable.
For those of us that don't live in Japan where they have copper coins, Australian coins will work and UK pennies will as well.
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If you live in the United States, you probably aren't going to have much luck since pennies have had more than 2.5 percent copper since 1981.