Interesting Knowledges

Interesting Knowledges

Why does paper make sound when it is torn?, Why do cats’ eyes shine in the dark?, How bat flies at night?, Why people snore?, Why does thunder make sound?, Why does the human body smell so bad?

Why does paper make sound when it is torn?

Because the fibers snap and the paper acts as a sound board when it is torn. So tearing a larger paper yields more noise. When you tear a paper the fibers on both sides of the paper start vibrating which produce sound. But when the paper is wet the fibers get stuck up to each other and the vibrations are less hence sound is less.

Why do cats eyes shine in the dark?

Because his eyes glow because of a layer called tapetum lucidum just behind the retina. Cats, dogs, deers, rabbits and other night animals have good night views due to the tapetum lucidum. Whatever the photo-receptor cells in their retina do not capture, it hits the tapetum lucidum and passes through the retina a second time.

How bat flies at night?

At night, she uses her sense of hearing to navigate her way to bat hunting. Bats constantly capture insects using an advanced navigation system, echo. When flying low, animals catch insects at about 40 meters per second. They show us the power of Allah.(Source)

Why people snore?

Snoring is noisy breathing during sleep that happens when tissue vibrates in the upper airway. It happens when turbulent air flows through the airway, causing the uvula and soft palate to vibrate.(Source)

Why does thunder make sound?

Thunder is caused by lightning. When a lightning bolt travels from the cloud to the ground it actually opens up a little hole in the air, called a channel. Once then light is gone the air collapses back in and creates a sound wave that we hear as thunder.

Why does the human body death smell so bad?

The other interesting knowledges is how human death smell? The unique smell of dead animals comes largely from molecules such as cadaverine and putresin, which are made when proteins break down. Human bodies smell much worse because they consume very different foods.

Why a human death do not decay? If you wonder click here.

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