10 things that you thought were scientifically proven, but they were wrong
Have you ever wondered how much truth in what you have been told since childhood? Some statements are repeated so often that sooner or later, are perceived by all as indisputable facts. And it turns out that this is not true. Let's check: What is the highest mountain in the world? If you call the Everest or Kilimanjaro, it is not entirely correct. Mount Everest is the highest, counting from the bottom to the top, but in fact the highest is Mount Mauna Kea in Hawaii - if we consider the whole height, including that which is below sea level.
Surprised? Then look nine generally accepted facts, which proved to be false.
Chameleons change their color to blend with the environment
Chameleon does not need to change their color, their natural color and so is ideal for masking. In fact, since they respond to physical, emotional or mental changes. they also change color to communicate or react to light or temperature.
Chewing gum to digest seven years
You've heard it in kindergarten or school. This may also include the "fact" that if you swallow a watermelon seed, in the stomach you grow watermelon. The most interesting is that many people have grown up with the conviction that chewing gum really stick somewhere in the walls of the stomach for seven years if it is swallowed. Do not be afraid, all children's horror stories. Chewing gum is digested exactly the same time as other products.
Bats do not see the
We all remember how in biology class told us that bats use echolocation to navigate in space. Do bats have eyes, and the larger species increasingly rely just on sight than on echolocation. And yes, do not forget about night vision.
Alcohol kills brain cells
Wait, do not rejoice so much. Although this is confusing, excessive drinking still harms the brain. Alcohol damages dendrites - short branching processes of the neuron, conducting nerve impulses to the neuron body. And it's treatable.
Birds abandon their chicks, if you touch them
Surely you as a child thought that the bird-mother throw her brood, catching the scent of a man on it. In birds, poorly developed sense of smell, and if you suddenly saw a chick on the ground, most of all, he fell out of the nest, learning to fly, and his mother was watching him closely.
Lightning does not hit twice in the same place
Another common misconception. According to NASA, the probability that lightning will strike the same place twice, is equal to 45%, rather than zero. Lightning is looking for the shortest path to the ground, so that the tall buildings and trees have the highest number of hit chance.
Coin dropped from the Empire State Building (or any other tall building), can kill a person
In fact, even if the coin will land you in the head, you will have only a small bump, because the final rate is not enough to harm humans, but she coin due to its weight is unstable in terms of aerodynamics.
Goldfish have a length of five seconds Memory
Poor fish suffering from this stereotype too long, it's time to put an end to their suffering. Memory of aquarium fish may take up to five months. Of course, this does not make them geniuses, but some species of fish in intellect comparable to the birds and other animals.
all five senses A person
In fact there are many more. Until now, however, the exact number is unknown (somewhere around 20), but by sight, hearing, smell, taste and touch must be added, for example, hunger and thirst. Also, this list should be added nociception (the ability to feel pain), proprioception (the ability to feel, where our body parts with the help of which we can join hands, without seeing them), temperature and sense of balance.