5 scientific facts you don't know about the world around you

5 scientific facts you don't know about the world around you

 1. Cats purr.

 Cat owners usually give a clear answer as to why this happens.  Cats not only make this sound when they are happy, but they can also make this sound when they are fighting or hungry and show support or threat to the other cat.

 Scientists have come to the conclusion that the frequency of a cat's purr is between 50 and 150 and the cat can change its purr at different times.  This work by cats is one of the signs of their physical health and they also produce this sound during the period of recovery from an illness. 

 2. Flamingos stand on one leg.

 Flamingos are distinguished from each other due to their unbalanced body anatomy and their bodies are very large.  Their neck is very long and the whole body is placed on a thin leg.  These birds can stand in this position for a long time and maintain their balance on one leg, but really why is there such a difficult position for them.

 The reason for this is because of heat exchange, and flamingos usually lose their body heat more than other birds, so standing on one leg makes them feel warmer because the heat is not shared between the two legs.  .  On the other hand, there is no difficulty for them when doing this.

  

3. The tower of Pisa will never fall.

Very complex engineering has been used in the Leaning Tower of Pisa, which everyone knows.  This tower was built in 1973.  Over the centuries, many attempts have been made to build such a tower, but no one has yet achieved this success.

In 1990, the tower was closed to tourists because people believed that it might collapse with more visits.  For several years, emergency care has been available for this tower and they are taking care of it, but finally the experts came to the conclusion that due to the advanced engineering technology,  This tower can stand for centuries.

The position of this building is still very stable and there is no reason to worry about it.

4. The beak of some birds shines.

 According to the studies, bright colors in the beaks of birds usually exist for males, and it makes them attract a lot of attention, and usually the color of the beaks will become more attractive during the mating season.

       Birds with colored beaks 

 5. Protein is energizing.

 Proteins are usually not collected in one place, meaning that you can find them in fruits, vegetables, grains and meat.  If we want to simply explain the energy-giving issue of proteins, we can say that proteins have a memory inside them.  This memory can supply us with energy in times when we lack energy, and in the sense that by consuming protein, you can guarantee your energy and strength for a long time, so you should not ignore this valuable substance.