crudden elle
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Swallows fly to the south for winter every year, so where is the south? It's just that we're small.
The weather is getting cooler, and many birds have already flown south to prepare for winter. Most people know that some birds fly to the warmer South in winter, but few people know where and how far this South is.
By crudden elle2 years ago in Earth
Turtle swelled into a ball after being bitten by mosquitoes, and the woman punctured it with a needle for treatment! Do turtles die from mosquito bites?
Recently, a woman in Fujian posted a video on the Internet. In the video, the head of a turtle was swollen like a ball. It was listless but very cute, which attracted widespread attention.
By crudden elle2 years ago in Earth
What is under the quicksand, why does it sink when people step on it? Pull-down force of 100,000 Newtons
Everyone should have heard or seen stories about quicksand, because quicksand is very popular in traditional cultures all over the world, and it is believed that in the 1960s, one in every 35 movies was about quicksand.
By crudden elle2 years ago in Earth
Are sharks really afraid of dolphins? Shark: Don't be afraid, you will be "sucked out of your liver" if you are not careful
Sharks are afraid of dolphins? Then see who is more scary! You can often see movies about sharks. The sharks in the movies have big bloody mouths, bloodthirsty and cruel, and one bite is not an exaggeration; and dolphins are more reminiscent of the cute performers in the zoo. It will interact with you, it will play with you, not to mention how cute!
By crudden elle2 years ago in Earth
Time travel? Humans cannot go back to the past because paradoxes will occur
Einstein was an outstanding biologist, he put forward many unfathomable basic theories, such as quantum theory, photon quantum hypothesis, photoelectric effect, etc. He also has many achievements in the nuclear industry, naturally, most famously or quantum theory. Until now, it has still become a classic basic theoretical theory. Many people feel that Einstein's brain development level is the greatest, so he can come up with this outstanding basic theory.
By crudden elle2 years ago in Earth
Humans have discovered 5.5 million species of insects on the earth, and they are now "larger" than humans?
Among the various creatures on earth, there is a creature that is very close to humans, and they are insects. Insects are distributed in every corner of nature and can be found in tree trunks, soil, and air. Furthermore, they are widely distributed in the human world, such as mosquitoes, ants, cockroaches, etc. Some people are afraid of insects. This fear often comes from childhood. It could be from a terrifying experience, or it could be frightened by the strange shape and the sheer number of insects. Compared to insects, humans are inferior to insects in number and weight.
By crudden elle2 years ago in Earth
How did the gorillas in Africa spread AIDS to the locals and then to the world?
The disease of AIDS is not terrible, because its transmission route is relatively single, through blood transmission, sexual contact transmission and vertical mother-to-child transmission. As long as you keep yourself clean and pay attention to protective measures, there is a high probability that you will not get AIDS. However, AIDS is still spreading on a large scale among human beings, and so far there is no cure.
By crudden elle2 years ago in Earth
Anecdote: What is hidden on the back of the moon? Is there some unspeakable secret?
Anecdote: What is hidden on the back of the moon? The moon, commonly known as the moon, also known as the lunar moon and the mysterious rabbit in ancient times, is the only natural satellite of the earth and the fifth largest satellite in the solar system.
By crudden elle2 years ago in Earth
280 million kilometers away, after taking the last photo, the spacecraft with precious samples returned to Earth
Speaking of asteroid sampling, you may still vaguely remember that at the end of 2020, Japan's Hayabusa-2 probe successfully returned to Earth with a sample of the "Ryugu" asteroid. From departure to landing on Earth, the flight mileage of the Hayabusa-2 probe Accumulated more than 5.2 billion kilometers. In addition to the Hayabusa2 probe, another unmanned spacecraft has also completed asteroid sampling, that is, the OSIRIS-Rex probe.
By crudden elle2 years ago in Earth
500,000 years ago, the Peking Man failed to climb to the top of the food chain, but became a demon that cannibalizes its peers
When it comes to "Peking Man", everyone is very excited, perhaps because it contains the word "Beijing", so many people mistakenly think that they are descendants of Peking Man! In fact, the Peking Ape has nothing to do with everyone. We are neither their descendants nor their transmitters!
By crudden elle2 years ago in Earth
Did the prehistoric flood come from the moon? The moon came to the earth 15,000 years ago! His words shocked the scientific community
When did the mysterious moon appear? Whether it was captured by the earth, or the piece that was blown away when the asteroid hit the earth, scientists have given various theories over the years. Today, the new point of view that the author is going to put forward, although it is not put forward by scientists, it really shocked many astronomers!
By crudden elle2 years ago in Earth