Interesting knowledge that you never expected

Interesting knowledge every day will tell you more special things about life. Below are interesting knowledge that many people still do not know.

Delve deeper into the truly bizarre world with this collection of bizarre facts that will blow your mind. They're a fascinating collection of knowledge gathered from around the world, delving into history and exploring the strange corners of science.

1. Lipstick contains shark fins

In the cosmetics industry there is an ingredient called guanine, also known as pearl essence. This ingredient is derived from fish scales and is used in many lipsticks to create a glossy effect.

2. The human body contains gold

The human body contains exactly 0.2 mg of gold, which is not enough to attack and harm health. This amount of gold is found in the blood and plays an important role in transmitting electrical signals throughout the body.

3. Eggplant contains nicotine

Eggplant seeds contain nicotine at a concentration of about 100 nanograms per gram of eggplant. And you would need to consume 9kg of eggplant to consume the same amount of nicotine as one cigarette.

5. Dogs can see TV screens as well as humans

Thanks to high-definition flat-screen TVs, dogs can see images on TV screens just like humans. And they are smart enough to recognize the animals that appear on them.

6. Bananas are radioactive

Bananas are a familiar fruit to many people around the world. However, many people do not know that bananas contain the radioactive element Potassium-40. Of course, the amount of radiation in a banana is not enough to harm the human body. According to research, if you could eat 8 million bananas, you would be seriously contaminated with radiation and die.

7. Pigeons can detect breast cancer

In one experiment, scientists taught pigeons to distinguish between tissue layers from healthy people and breast cancer patients. The pigeons were then able to easily and accurately detect and recognize breast cancer in humans.

8. Peeing in the shower saves more than 2 thousand liters of water per year

According to a study, if you pee in the shower and shower once a day, you can save 6 liters of water by not flushing the toilet. So, in a year, you can save a total of 2 thousand water just by peeing in the shower.

9. Cows are named for the amount of milk they produce.

British scientists conducted a survey of 516 cow farmers to study the relationship between milk production and naming each cow. The results showed that named dairy cows can produce about 258 liters more milk in a 10-month cycle than those that are not named.

10. Use your hand to measure angles instead of a protractor.

You can use your hand to measure angles in a very simple way. Spread your hand out as much as possible, place your palm on a flat surface so that the little finger on the bottom edge will have a 90 degree angle created by the little finger and thumb, 60 degrees with the index finger, 45 degrees with the middle finger, 30 degrees with the ring finger.

11. One big pizza is more than two small pizzas of the same size.

It may seem counterintuitive, but the truth is that a 43cm pizza is bigger than two 30cm pizzas. This means that if you buy one 43cm, you will get more than if you buy two 30cm pizzas.

12. One side of our nose always inhales more than the other

When we breathe, one side of our nose always inhales more than the other and the cycle changes every 15 minutes.

13. The heart and brain create energy

On average, an adult's heart produces enough energy to drive a truck 20 miles a day, while the amount of energy the brain produces is enough to light a 10-watt light bulb.

14. One quarter of the human body's bones are located in the feet.

A human foot has less than 28 bones, the total number of bones in both feet is 56, accounting for more than a quarter of the total number of bones in the whole body (206).

15. Boiling water makes a different sound than cold water.

Hot and cold water make different sounds when poured. This is due to the speed of water molecules at two different temperatures.

16. Oxygen

The oxygen we breathe every day is essential for life, but it oxidizes cells, which we call aging, making us age.

17. Flamingos bend their legs at the ankles, not the knees.

They basically stand on their toes. Their knees are closer to their body and are covered with feathers.

18. Roller coasters were invented to distract Americans from their bad pleasures.

In the 1880s, hosiery entrepreneur LaMarcus Thompson hated the way Americans were being lured by places of pleasure like saloons and brothels. So he set out to renovate one of the most immoral places he could think of: New York's Coney Island. There, he built America's first roller coaster to give New Yorkers some wholesome, clean fun—away from their more sinister pastimes.

Samuel Daniel

Update 17 January 2025