The most common questions you have heard or encountered in your life # Part1
Hello people , in this post I will talk about the most common questions you have heard or encountered in your life :
- How many kilometres does a person walk all his life ?
- Is it true that dogs smell fear ?
- Why do ants walk in the form of a row ?
- Why are we hiding under the cover when we're scared at night ?
- What is the secret of the cockroach resisting the nuclear attack ?
How many kilometres does a person walk all his life ?
It's depends on how active the person is, but let's do some calculations.
A moderate activity person walks about 7500 steps a day, equivalent to 7.5 kilometers, if this rate is maintained within one year, the total walking distance will be 2737.5 kilometers , suppose he will live 80 years , during these years he will have walked 219000 kilometers throughout his life. This is the equivalent of walking 5 times around the earth.
Is it true that dogs smell fear?
You must have heard someone say that the best thing you can do in front of an aggressive dog is to stay calm because these animals can smell fear. Is that true ?
Yes, it's true. Dogs can smell some of the substances and hormones that are excreted when feeling nervous, but that doesn't mean he will attack you, the feeling of fear is basically a natural reaction to defending the body , if we feel fear or anxiety, our body releases a series of hormones to prepare the body to react to the danger , when a dog smells fear, he puts his self in a defensive position, believing that you're the one who's thinking about attacking him, and that doesn't mean he's going to attack you right away , when a dog smells your fear, it simply becomes alert if you get too close from him or threatened and because of this it is advisable to remain calm with the dog in case you are a person who is afraid of dogs , these animals are not aggressive or exploit the weakness of the people, but simply their instinct that drives them to this .
Why do ants walk in the form of a row?
When the ants come out of his hole , his body secretes a chemical full of pheromones that help him find the way home, you can compare this strategy with the story of the bread crumbs thrown by Hansel et Gretel in the jungle in order to find the way back , this course is also an effective mechanism in which ants communicate with the rest of their members who were caught while roaming either a threat or something tasty eaten , but why in the form of a row ?
Ants can not access the known place alone , to reach the source of food without losing the way, they must follow that pheromone the whole time , that means she needs to follow the exact path that the first ant has followed, leading the convoy.
Why are we hiding under the cover when we're scared at night?
Since we were kids , we were safe from danger under blankets and lid , it may sound absurd and illogical if you think a cloth might protect you from imminent threat. Don't you think?
In fact, it's not as silly as you think , the body is home to most vital organs , that's why when we feel scared or think we're in trouble, instinct pushes us to cover this area of our bodies and when we're on the bed, our first and fastest way to protect our bodies is our cover . That's the same reason we usually stick our arms towards our bodies or we cover ourselves with things when we feel uncomfortable or afraid.
What is the secret of the cockroach resisting the nuclear attack ?
It has always been said that cockroaches can survive a nuclear attack. Is that true?
Not true at all , if a cockroach is found in the blast area he will die instantly like anything alive , cockroaches will not survive the blast, but they can escape the radiation from it , this insect is able to withstand 6400 rad, while 500 rad is considered enough to kill a man, the cockroach is not the only insect able to survive in these levels of nuclear radiation , it has been shown that some types of flies, beetles, scorpions and wasps can also survive high levels of radiation and possibly better than the cockroach.