Interesting mathematical facts relate not only to formulas, theorems and numbers. Amusing information about mathematics can supplement even fish, have a science accounts for up to four.

Did you know that fish can count to four? This is an interesting mathematical fact confirmed the Italian scientists. Fellow, University of Padua, Christian Agrillo, who participated in the experiment, said: "We received evidence that fish are endowed with rudimentary mathematical abilities." Before it was known that fish are able to find the difference between large and small shoals of fish, but this experience has shown that fish can count how many fish swim around them. Similar mathematical abilities are apes, dolphins and some people with disabilities.

These interesting facts about math based on observations of females freshwater fish, which showed that when the female begins to hunt a male, she tries to escape from him in near the largest fish stocks. In this case, choosing between groups of two, three or four fish, it is able to count the number of individuals and come to the largest group. In addition, fish can visually distinguish between larger numbers if their ratio is 2:1. These researchers obtained data during the second series of experiments. For example, the female sees the difference between the groups of 16 and 8 fish but cannot distinguish between flocks of 12 and 8 fish, since the ratio in this case 3:2.

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More Interesting math facts

Why is the product of "Hyperboloid Engineer Garin" in terms of science must be named differently?

The invention of Engineer Garin from the novel by Alexei Tolstoy properly is called a paraboloid. Tolstoy knew about it, but because of the more impressive sounding chose the name "Hyperboloid Engineer Garin".

What is the mathematical law is revealed in the theorem on two policemen?

Some mathematical laws are called, by analogy with situations in real life. For example, a theorem about the existence of a limit of a function which is "sandwiched" between two other functions having the same limit, called a theorem about the two policemen. This is because if the two policemen held between a criminal and thus go into the camera, then the conclusion is also compelled to go there.

Why not the Nobel Prize did is awarded for achievement in mathematics?

Argued that Alfred Nobel did not include mathematics in a list of disciplines his award due to the fact that his wife betrayed him with a mathematician. In fact, Nobel never married. The real reason for ignoring the Nobel of mathematics is unknown, but there are a few assumptions. For example, at that time already existed Prize in mathematics from the Swedish king. Other - Mathematics does not make significant inventions for mankind, as this science is purely theoretical.