10 real but unbelievable facts, how many do you know?

Although the ways to obtain information are becoming more convenient, it is almost impossible for a person to be fully aware. There are always unbelievable facts in the world. Whether we believe it or not, this is the world we really live in. Let us understand this knowledge together.

1. After being struck by lightning, it will leave various marks on human skin

Not many people can survive the strike of lightning. And those who survived will appear mysterious imprints, these imprints are called "Electric Flower Picture". In addition, these tattoo-like patterns will also appear on the surface of materials damaged by high voltage.

2. Dolphins will eat puffer fish to gain excitement

The similarities between dolphins and humans are far beyond your imagination. The producer of a documentary discovered something very strange during the photography process: a group of juvenile pufferfish chew the puffer fish very seriously and pass them between them. Pufferfish can release a deadly nerve agent, but if the dose is insufficient, it can also produce a narcotic effect, and dolphins are clearly aware of this. To them, chewing puffer fish is like smoking or chewing betel nuts.

3. NASA's Internet speed is as high as 91G per second

This means that you can download any TV series you like within 1 second. But this is not the speed of the public network, but the speed of a private network dedicated to scientific research.

4. Japan changed their national flag in 1999

Japan is truly a unique and magical existence. For example, their views on the signs of their own national flags are unique. Their "Sun Flag" was released in 1999 with minor changes.

5. In Japan, seals are used instead of their signatures

To open an account in Japan or send a courier, you need a private seal. Although they sometimes sign, the seal is still their main tool to confirm their identity.

6. The baby can "heal" the mother's heart

Scientists have discovered that baby stem cells can repair the mother's heart. Some experts believe that this interesting phenomenon is actually an evolutionary mechanism: the baby protects the mother's heart in order to increase his probability of survival. This finding can explain why most women with heart disease heal themselves quickly after pregnancy.

7. In Philippine, there is a small island with a lake, another small island in the lake, and another lake in the island

Sometimes the natural world is very lazy. They use "Ctrl+C, Ctrl+V Dafa" when creating natural landscapes. In the face of lazy humans who use this skill skillfully, Mother Nature uses Lake Taal to give us a special humor.

8. Hawkeye's vision

We all use eagle eyes to describe powerful eyesight. If it really becomes the eyesight of eagle eyes, it means the following facts:

1) Ants on the ground can be seen on the roof of the 10-story building

2) Be able to see the facial expressions of players clearly in the worst position on the football field (the dream of all those who watch the World Cup live)

3) Can distinguish more colors and ultraviolet rays

4) Have a 340-degree viewing angle range

9. The record of the longest human stay in space

Russian astronaut Valeri Polyakov is the record holder for the longest time in space in human history. During a trip, he stayed on the space station for 437 days and 18 hours.

10. Germany is counting their trees

If you travel to Germany, you will notice the numbers on the trees in the park. Germans will record tree numbers and collect data such as tree age and growth status. All trees are carefully looked after to prevent the death of trees. The German is such a person who likes order and rigor in every field.