10 Question That Have Scared Us While We Were Kids, Scientist Finally Found Answers
Scientists took a long time to figure out what came first — the egg or chicken and the answer has been found. According to Darwin, the egg came first. The species that had been developing into a chicken for thousands of years it just don't appear out of nowhere, the start of life happens in the egg.
The spots that appear when we look at bright light
When we stare at the bright light there are so-called “blind spots.” When a bright light shines into our eyes, the photo receptors of the retina get temporarily over stressed. Scientists said that closing one eye when we enter a light room from a dark room you will be all set to see your eyes for bright sunlight and the blind spots will disappear quickly.
Are Zebra Black or White
Zebras are black horses with white stripes. The stripes are genetic process called selective pigmentation.
British scientists found that why zebras need this color. According to their studies, the black and white stripes attract fewer horseflies.
Why do cats often stare at nothing?
Some people believe that cats often see ghosts. But in fact, they keep looking in front of itself because they preparing for sleep. These animals spend most of their time sleeping.
Cat has strong senses which only they feel which we can't like, if a cat is staring to the side, this is because it heard a sound or smelled something that we can’t smell.
How does a chameleon change color?
A chameleon’s skin has chromatophore-cells that contain different pigments. The cells has pigments to be evenly spread out. So, when a chameleon needs to change color, the parts of these cells just squeeze and the colors get pushed into the center of the cell.
We sometimes feel better when we sleep less
Some people do not do anything with how many hours of sleep you got. If you ate bad food, drank a lot of coffee or didn’t drink enough water, you can feel tired after sleep even if you slept a lot.
The body can’t start synthesizing melatonin in time, which can lead to different kinds of problems. The best time to go to sleep is before midnight.You can also get tired if you take a long nap. If you want to rest during the day,sleep between 1 pm to 3 pm and not for more than 30 minutes this will help restore your energy.
Why do we sometimes experience the Deja-vu effect?
Deja-vu is the sensation that something has already happened to us, we’ve already seen this picture, or have already been in this room. Freud thought that this was a forgotten traumatizing experience or a very deep desire.
Modern neuro scientist has an amazing answer that this is a short-term dysfunction in several part of the brain caused by stress, fatigue, or intoxication. The brain gets confused and treats new impressions as old ones.
How Do We Laugh?
Scientists believe that laughter came 2-3 million years ago and it looked like fast short exhales. When we laugh, 80 facial muscles take part in this process.
Laughter is for good reasons also it makes your life longer, according to scientists, 15 minutes of laughter can burn huge amount of calories which a average chocolate bar has.
Time goes by faster when we get older
According to American scientists, the time is very subjective and it fully depends on the speed of the brain function. At the young age brain receives information fast, so we’re under the impression that time is slow. But when we are older, the brain takes much more time to process everything around it, brain takes time so it seems that time flies.
we sometimes look very similar to one of our ancestors
Human genes are strong and weak. For example, 2 brown-eyed parents give birth to a blue-eyed child, there is nothing strange about that. It only means that the parents have the recessive gene for blue eyes.
In one family, one of the children looks like their mother and the other one like their father. This proves that brothers and sisters can receive a different combination of genes.
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