Five Interesting science facts, There are so many facts about space and science. There are many such questions related to space or science, that come to our mind. So today we will talk about some of the five questions.
WE CAN’T TOUCH ANYTHING
Yes, we can’t touch anything. I know this is very strange but this is true. As we know everything in this world is made up of atoms, thousands of atoms together make one thing and they are very small in size. Our body is also made up of atoms ( hydrogen atoms, carbon atoms, oxygen atoms, nitrogen atoms ). Atoms are made of the nucleus ( which occurs inside the atom ) and electron ( which revolve around the nucleus ) and electron is the reason why we cannot touch anything. Because when the electrons of one body come closer to the electrons of another body, they push each other ( just like magnetic repulsive force ).
BLUE SUNSET ON MARS
The sunset on mars appears blue whereas the sunset on earth appears reddish-yellow.
ONE DAY ON VENUS IS LONGER THAN ONE YEAR ON VENUS
Day on Venus = 243 earth days
Year on Venus = 225 earth days
WHY SPACE IS BLACK?
Why does the sky which appears blue to us in the day become black at night? When the rays of the sun fall on the earth, it appears blue to us because of the Earth’s atmosphere because the dust particles and gases in the Earth’s atmosphere reflect this light. So in the daytime, the sky appears blue to us(Five Interesting science facts). As we know that half of the earth consists of day and half of it is night. Half of the part in which there is night is not able to reach the sunlight. So you do not have sunlight in that part to reflect, so the sky appears black at night. If we go to the moon, then in the day there we will feel like night because there is no atmosphere which can reflect the sunlight. But the question is that why is space always black? Despite having billions of stars in space, our space will always be black because there is no atmosphere in space. Therefore, the light of these billions of stars is not reflected and they continue to run in a straight line. That’s why our space or our universe will always be black.
WHY ASTRONAUTS DO NOT USE PENCIL IN SPACE?
As we know, any kind of pen does not work in space. Therefore, NASA spent millions of dollars to create a pen ( Fisher space pen ) that could work even in space. But why didn’t NASA use pencils in space, which would save millions of dollars as well? NASA did not use pencils because the pencil contains graphite, which is a highly conductive material. So If astronauts use pencils in space, heavy losses can also occur and that’s why astronauts don’t use pencils in space(Five Interesting science facts).
IS THERE LIFE ON OTHER PLANETS IN THE UNIVERSE?
There are more than 125 billion galaxies in the observable galaxies and we are equal to just one dust particle in this universe. It is possible that there is a life beyond the earth. The universe is expanding and it is a huge place where millions of planets like earth exist. The age of the earth is 4.5 billion years and the age of the universe is approx 13.8 billion years. This means that apart from the earth, there are many planets where there is life. They can be smarter than us and also less.