11 most common misunderstandings that billions of people around the world still believe

Will touching a toad will develop warts or nails that will still grow long after death? Here are 11 of the most common misunderstandings that billions of people around the world still believe. Invite you to watch!

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Since childhood, obviously one of us has also been reading and hearing about so many ' truths' always true, never doubting its authenticity. However, there are things in it that are false.

Science always makes reasonable explanations, which helps explain many of the mysterious phenomena in life from the past to the present, but there are not a few scientific statements that are not really accurate that many people believe in. .Let's review the horrific and horrifying mistakes that we still think are true until now!

11. Bactericidal soap

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In fact: Soap can only wash away, not kill bacteria. So why use soap? That's because hand washing with soap can remove dirt from the hands and the amount of oil secreted by the skin, which is the environment for bacteria to thrive.

10. If you swallow a piece of gum, it will stay in your stomach for seven years

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In fact: When swallowed, the gum will also pass through the digestive system like all other foods. Body secretions can immediately break down some components of chewing gum, such as sweeteners and oil extracts, but with preservatives or elastomers in them, it must take a few days. No matter how long it takes, the gum will disappear from your body.

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9. Cutting your hair will make your hair thicker

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In fact: Hair cutting will make the hair ends "blunt" so you will have a harder and thicker hair feeling.

8. Touching the toad will develop warts

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In fact: Warts are a small, white, lumpy tumor that usually grows on the skin of the hands or feet, which looks like a small cauliflower. Common warts are caused by viruses, most commonly the human papilloma virus (HPV), caused. Therefore, if you go hand-in-hand with frogs, the toad will not cause your hands to get warts, but when you shake hands with someone who has warts, this is entirely possible. The warts are contagious, can spread over time and often dissolve after a few weeks or years.

7. Hair and nails will grow long after death

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In fact: After death, glucose is no longer produced and what depends on glucose such as hair and nails will not be able to continue to grow. But visually, people still feel the hair and nails of the dead long. That's because after death, the body will become dehydrated and dry. Therefore, the skin will shrink to reveal the previous nail and hair that is hidden under the skin. So when I look at it, I think they grow longer.

6. China's Great Wall can be viewed from space

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11 most common misunderstandings that billions of people around the world still believe Picture 7 © google.earth

In practice : Although China 's Great Wall is more than 4,300km long, it is difficult to see from space because its color " blends " with nature. You can only see the walls in light and certain weather conditions, even if only in low orbit can be realized.

5. Bats are blind

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In fact: Although bats determine location in echoes in space, they can also look at night if under certain conditions.

4. Electric water

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In fact: 100% pure water does not have the ability to conduct electricity. However, water is inherently soluble, so it often mixes impurities, including salt, creating free ions in aqueous solution, allowing electricity to flow.

3. Antiviral antibiotics

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In fact: Antibiotics can only fight bacteria, kill or stop them from reproducing.

2. Sitting near the TV will make your eyesight worse

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In fact: Previously in the 1960s, sitting near the TV could be harmful, not only for the eyes but also for human health. That's because TV at that time could emit X-rays 10 to 100,000 times higher than permitted, but today, sitting near the TV is no longer as dangerous as before.

But sitting near the TV for too long will cause headaches, eye strain, especially when viewed in lying position or in inappropriate lighting conditions. It is best to keep a distance to avoid unwanted side effects.

1. Coca-cola wears teeth

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In fact: The mystery of a tooth placed in a Coca-Cola cup disappears in just one night, something people still believe in for years. This is said to be due to Coca-Cola containing 3 types of acid - phosphoric, citric and carbonic. However, they can be found in many other drinks.

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Having fun!