Science
How did Voyager 1, which is 22.8 billion kilometers away, send the signal back to Earth?
The universe is so big, but the range of human activities is very small. So far, the farthest place humans have been to is the moon, and the average distance between the moon and the earth is only 380,000 kilometers. Of course, humans have also launched a variety of detectors. If you count them, then the range of human activities will be much larger.
By tannie rusty4 years ago in Earth
30 billion tons in a century! The Mariana Trench did not stop "drinking water", and the sea level rose instead of falling?
Introduction: The earth is a member of the solar system, and the solar system is a small part of the universe. The earth is very small in the universe, but the earth is the only planet known to human beings that has living organisms. Humans have lived on the earth for tens of thousands of years, and at the same time have changed various environments on the earth, but now human beings are still in an unknown state of the earth, and more understanding of the earth is only shown by data. things are still relatively small.
By tannie rusty4 years ago in Earth
Scientists release amazing theory: the universe may be a huge neural network, really alive?
Introduction: With the continuous development of human science and technology, human exploration of the universe has become more and more frequent. The universe is boundless in human cognition, and the earth is only a small part of the universe. Because the universe is so huge and human beings are so small, people have a lot of mysterious ideas about the universe.
By tannie rusty4 years ago in Earth
Why is Yellowstone volcano called a "supervolcano"? Once the outbreak will really affect human survival?
Introduction: We humans have never been able to control, master and predict natural disasters. Whether it is as small as a gust of wind or as big as a volcanic eruption and a tsunami, however, the power of nature cannot be underestimated by everyone, and once it occurs, it will cause serious damage to us human beings. Everyone must know the world's largest volcano. This volcano covers an area of nearly 8,000 square kilometers, even larger than some countries. Such a large volcano, once it erupts, what kind of consequences it will bring to the whole world, no one dares to imagine.
By tannie rusty4 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 elle4 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 elle4 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 elle4 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 elle4 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 elle4 years ago in Earth
In 1881, what happened to the savage girl caught in the primeval forest by Norwegian hunters? Sad ending
About 65 million years ago, due to a meteorite hitting the earth, the dinosaurs that dominated the earth at that time died out, and many reptiles were also tragically extinct. Since then, mammals have survived this race for survival, and evolved rapidly, and finally became the current human.
By crudden elle4 years ago in Earth
Are vegetarian animals at the bottom of the food chain? Can a male lion beat a mature giraffe and hunt it
Can a mature African lion beat a mature giraffe? Do lions hunt prime giraffes for food? The lion is the number one top predator on the African continent. Through the observation and research of scientists, it is found that the lion has attacked all the vegetarian and carnivorous animals on the African grassland. .
By crudden elle4 years ago in Earth
