Cpu, noise, water and bubbles

In the early days of my interest in the world of the PC, the focus on the new CPU was not yet on the number of cores, but on pure frequency in MHz. Every so often a joker, more or less serious, he came out with the phrase "Yes, of course, and if it goes on like a day rate will be so high that there hiss ears."

In reality, things did not go right, but instead there is a problem that existed then and constantly growing: the operating temperature of microprocessors. Although the miniaturization of transistors, the increase in frequency has recently brought the concept of liquid cooling in the world of home PCs, especially those ultra performance the most hardcore gamer.

What began as an idea a little 'sock, though sensible, is nowadays a reality for an increasing number of people, but also not free of defects, the main problem of this technology is that the most economical and common liquid - water - boils at a temperature not impossible to achieve within a computer. The formation of steam is able to generate a "film" that degrades the performance of the system, and then lowers the cooling power.

Ari Gletzer has found a way to slow down this process, as writes NewsScientist: substantially inserting a speaker on the opposite face of a hypothetical cube filled with liquid (the other side would be in contact with the surface to be cooled) and projecting a sound to about 1 kilohertz, is likely to reduce the temperature by almost 150% compared to a traditional system in liquid. And moreover, the best results would be obtained in the small space, that is, with a few millimeters of liquid between the speaker and the processor, a boon for manufacturers of cooling systems for PC.

The good news is that this technology can also be used for other purposes, for example in cooling of aerospace components. The bad news is that the human ear can hear sounds between 20 and 20,000 Hz, then the hypothetical resulting sound would be added to that of the power supply fan.
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