In general, we hear a popping sound when we crack our knuckles and there is a scientific reason behind this. The sound in the knuckles is caused when we deliberately or undeli-berately extend the finger joint to its maximum range. The joints are enclosed by a lubricating fluid and when we extend the knuckles the […]
We sneeze when our nasal mucosal membrane is swollen or the nerve ending is irritated. The irritation can be caused by anything, which may be a foreign substance or allergen. However, sometimes sneezing occurs when our optic nerve is exposed to bright light. Multiple sneezes or one single sneeze is a reflex of the human
The human body is of such type that it cannot hold excessive loss of blood. So there should be some hormone which helps humans to keep stick their wounds and cuts so that they may be intact with their proper working of the body. Blood platelets are the required hormone that helps them for blood
Most of the times we do a deep knee bend and then we hear a popping sound that comes from your knee joints. This is a very common thing that is faced by the people of different age groups. The reason for these sounds in the knees and other joints is because of the tendons,
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Long ago, a hyena, a fox and a monkey lived together in one house. One day, they went hunting and stole four cows from a village farm. “Each of us will have one cow,” the hyena said. “But who will have the fourth cow?” “The oldest one of us will have it,” the fox advised.
Food absorption is also known as ‘digestion’ in the language of science. The full system of digestion or food absorption is twelve meters long in the body of the human. In the body of the healthy human this process takes place in normally between 24 to 72 hours. The digestion is also depending on the
There are lots of ways to keep your coats and pants and sweatshirts warmly wrapped around you, like buttons, snaps, hooks, and bowties. Then there are zippers, which are just as helpful as the other ways, but slightly more mysterious. How do they work? A zipper track is made up of dozens of teeth, each
Once upon a time, an old man was going to the river to wash his clothes. On the way, he met a little boy. The boy asked him where he was going. The old man replied, “I am going to the river to wash my clothes.” The boy offered himself to wash his clothes. The
Pencils can only write for so long before their graphite tips are worn down to nubs, and then we can’t write anymore. This is when we go to the very helpful machines called ‘pencil sharpeners’. Early pencil sharpeners consisted only of two blades situated in a metal housing that was manually turned around the pencil.
Epiglottis has a flap structure which is made up of an elastic cartilage that is covered with hard roof or hard skin known as mucous membrane, which is closely attached at the start of the larynx. There is a risk of epiglottis in the young children or growing children because these glands at some times
Food said, “You are not clever. If you had chosen Wisdom, all of us would have come and lived with you. But look, you chose me. Do you think you can keep me? No, you cannot keep me. Let us go on.” As they went ahead, they came to a man who was working. When
Long ago, Wisdom, Food and Wealth started on a journey. While they were going, they came across a man sitting under a tree. The man asked them where they were going. They said, “We are hunting for a place to live.” The man asked Wealth to come and live with him. Wealth replied, “You are
Blood is comprised of white blood cells, red blood cells, platelets and plasma. Their main functions are differentiated as transport, maintenance and immunity provider. Each component has its own function. Primarily blood serves as a carrier of useful components to the desired part and waste component back to the respective place. Several functions of bloods
Setelane in a drunken state said to his wife, “You are nothing but the daughter of an ostrich-egg!” He drank his beer and fell unconscious on his bed. When he had slept, it was not yet morning. All of a sudden, he felt that his bed was hard and cold. He moved his hands here
Changing levels of water in the ocean is called tide. In creating tides, the moon plays a very specific role. Not only the moon but also the sun is responsible for fluctuation caused in water level to some extent. The moon is closer to earth, so it is mainly responsible for causing tides. Gravitational force
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