Is the sense of smell stereoscopic? Detailed answer

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Is the sense of smell stereoscopic? Detailed answer

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Is the sense of smell stereoscopic?

It has long been established that vision and hearing in humans and many other animals are stereoscopic. However, we also have a stereo sense of smell, because the nostrils are also a paired organ, although they are located much closer to each other than the eyes or ears. The hypothesis of a stereoscopic sense of smell has been most effectively proved by the example of moles, whose eyesight and hearing are underdeveloped. In a special laboratory, moles needed much more time to find a feeder with earthworms if a plug was inserted into one of their nostrils, and the deviation of the course for all the experimental subjects was approximately the same and always towards the open nostril. In another part of the experiment, the moles were inserted into the left nostril with a plastic tube leading to the right, and into the right nostril leading to the left, in which case the animals were completely disoriented and could not find food.

Authors: Jimmy Wales, Larry Sanger

Random interesting fact from the Great Encyclopedia:

When was copper first used?

With the exception of gold, copper began to be used by man before all other metals. At the dawn of history, Stone Age man already used it. One of the reasons for the early use of copper is that it can be found as pure metal ingots.

Ancient man collected these copper ingots only because they were attractive. Later, man discovered that these red metal stones could be molded into any shape. Therefore, they began to make knives and weapons from copper, which was easier than processing stone for this. And then, much later, man discovered that molten copper can be given any shape, for example, a bowl or a vessel.

Copper became very necessary, so people began to mine it and make all kinds of household utensils from it. Copper has been the only metal available to humans for thousands of years. Gold was not suitable for this because it was sacred and also too soft for practical use.

Scientists believe that copper tools were used in the construction of the Egyptian pyramids. Found pieces of a copper pipe, which the Egyptians used more than 5 thousand years ago. And she is still in good condition. The use of pure copper ceased with the advent of iron. Copper began to be used in alloys with other metals: bronze is an alloy of copper and tin, and brass is an alloy of copper and zinc. Thus, along with iron and aluminum, copper is the metal that is still widely used today.

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Random news from the Archive

Kingston HyperX DDR4 memory modules 22.09.2014

The JEDEC standard specifies a supply voltage of 4 volts for DDR1,2 memory modules in the frequency range from 1600 to 3200 MHz. But many branded DDR4 kits designed for overclocking enthusiasts can operate at the manufacturer's declared frequency only at 1,5 volts, which is a lot for DDR4. Since the memory controller in all modern processors, including Haswell-E, is built-in, excessive enthusiasm for increasing the memory supply voltage can end in tears not only for the modules, but also for the processor itself, and even the most risky overclocker will hardly like the loss of a brand new "stone" worth $1000 .

Kingston seems to understand this well. Its pre-sale samples of HyperX DDR4 modules worked at a supply voltage of 1,5 volts, but the company conducted a study, as a result of which it turned out that 1,35 volts would be sufficient for the normal functioning of these modules. Mass shipping of the HyperX DDR4 series will begin this week, and the company says that the maximum value programmed into their SPD will be just that.

According to Intel engineers, 1,5 volts is not a critical memory supply voltage for Haswell-E, since their controller is capable of operating in two modes, and for DDR3 this supply voltage is standard. However, there are extreme versions of DDR3 memory kits on sale that require 1,65 volts. A number of cases of failure of Haswell-E processors and motherboards based on the Intel X99 chipset have already been recorded on the Web, but it is not known what was to blame - the "childhood illness" of the new platform or excessive flirting with clock frequencies and supply voltages.

In any case, Kingston's initiative looks reasonable, because a lower memory supply voltage means not only reliability, but also increased efficiency.

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