Did you know that you have the ability to hear if the water is hot or cold?

You have to agree that the temperature - hot, cold, warm, naked - is something we feel and don't hear, right? But at least as far as water is concerned, did you know that you have the ability to distinguish whether it is hot or cold with just your ear? That's right, dear reader! Just hear the sound of it pouring into a container to know. Do you doubt? So check out the following video (between minutes 0:48 and 0:58):

So, did you notice the temperature difference in the water? For if, in your opinion, the first noise refers to cold water, and the second to hot water, then you have got it right - and you have verified with your own ears that you have the ability to hear the temperature! And do you know how this is possible?

Hearing thermometer

As you saw in the video above, Steve Mold, the guy who did the experiment, used identical pitchers to pour water into identical mugs. As Mold explained, we can see the difference in water temperature due to the variation in viscosity that occurs when it is heated.

According to Mold, as we heat the liquid, its viscosity has decreased - even if this drop is not noticeably noticeable. But what happens to water is exactly the same thing that happens when we heat honey. Look:

With water, the difference in viscosity is less apparent than with honey, but when it is poured into a container, this variation makes the sound it emits noticeably distinct. So, did you know you had this ability?