1. The place with the most gold content on the earth is the ocean, which has about 10 billion tons of gold, but there is no effective way to extract gold from the ocean.
2. Some psychologists have said that persistently making some positive psychological cues to themselves will make some unexpected changes in themselves.
3. The roots of dandelions can be temporarily used as a substitute for coffee, grinding and roasting.
4. Concussion is a very minor brain injury that can be cured without treatment, but there may be amnesia.
5. Alpacas eat grass very differently from other animals, they will slowly chew from the top of the grass, and will not directly uproot the grass.
6. After 40 seconds of holding your arm against the wall and lifting it vigorously, the arm will "float" after leaving the wall, which is called The Constantam phenomenon, but 25% of people cannot experience this phenomenon.
7. One survey data shows that only 55.2% of people can accept the use of toilets when others enter.
8. The air flow generated when sneezing is as high as 41.7 meters per second, which can instantly spray droplets to several meters away.
9. Of all known animals, the only one who can blush is humans.
10. When a forest is infested by insects, trees can warn adjacent trees.
11. In general, women's fat is mainly stored in the abdomen and buttocks, while male fat is mainly stored in the upper abdomen.
12. Male Koji canine antelope has the habit of covering his own excrement on the excrement of female Koji canine antelope, and the purpose of this move is to warn the "old Ke next door" in the territory not to covet the female canine antelope.
13. It is impossible to jump without bending the knee.
14. Avocado is a very high calorie fruit, 100 grams of avocado contains 160 calories, and the same weight of lean pork, also contains only 143 calories.
15. For every 50 people, the probability of two of them having the same life day is as high as 97%.
16. Only female mosquitoes bite and suck blood, and only during breeding, blood sucking is to replenish energy, if not blood sucking, then eggs will not be laid.
17. Fat cells do not increase or decrease because of weight loss or weight gain, they will only become larger or smaller, not disappear.
18. When people see something they like, their pupils will change, such as suddenly seeing someone or thing they like, and their pupils will expand by about 45% compared to the original.