crudden elle
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Dragonfly: The "king" of flying, scientists have been studying for decades, but have been unable to understand its technology
When people talk about objects that can fly freely, people generally think of birds and airplanes. Birds are small animals that are born with the ability to fly, and airplanes are our most outstanding inventions in modern times. in the infinite sky.
By crudden elle3 years ago in Earth
变异毒株出现后，“拔牙”将面临失效
When the ASF outbreak occurred for the first time, the major pig farms came up with a "tooth extraction" plan based on biosafety through repeated practice. As soon as this plan came out, major farms scrambled to imitate it, and the effect was satisfactory. However, due to the emergence of the natural variant of African swine fever genotype II with low lethality, the plan encountered serious challenges: failure or high culling rate.
By crudden elle3 years ago in Earth
Fusion Engineering Dilemma
1. Fusion research and tokamak devices The established goal of fusion energy research is to develop a new type of electrical energy based on the theory of nuclear fusion, the principle of which is the same as the heating principle of stars such as the sun.
By crudden elle3 years ago in Earth
The second largest planet in the solar system - Saturn, the planet that rains "diamonds"
Can diamonds be mass-produced on Saturn? Can. Under the upper atmosphere of Saturn, a large number of water and gas clouds are constantly dancing, and the super lightning flashes turn the methane gas into a large cloud of soot. The downward pressure increases, and these soots accidentally turn into diamonds . As the saying goes: a grain of Saturn's ash on your head may be a diamond, but don't think too much about it, these diamonds quickly disintegrate and eventually liquefy under the pressure of Saturn. Forty thousand kilometers below Saturn's surface, take a look at its largest source of energy. The pressure here is very high, the gas looks like liquid metal, and the molten helium rains down in the hydrogen, releasing an amazing amount of heat. This is a very specific heat source, like the engine of Saturn's weather.
By crudden elle3 years ago in Earth
Humans are not alone? Expert: There may be at least 36 "alien civilizations" in the Milky Way
Since humans began to explore outer space, there have been more and more conjectures about outer space. For human beings, the universe is vast, so on the way to explore the universe, human beings still have a long way to go. Scientists have been exploring whether there is life in outer space a long time ago, but for the past so many years, this question has still not been answered, and in June 2020, the University of Nottingham in the United Kingdom also launched a related survey.
By crudden elle3 years ago in Earth
Sanxingdui Cultural Relics Awards, netizens: The more you dig other sites, the more you understand, the more you dig Sanxingdui, the more outrageous
Among the ancient ruins, the most mysterious and unpredictable is the Sanxingdui civilization site. In the words of netizens, the more other sites are dug, the more clear they are, and the more Sanxingdui is dug out, the more outrageous they are. Since the discovery of the Sanxingdui civilization site, archaeologists have excavated the site many times and unearthed many amazing ancient cultural relics. However, as more and more cultural relics are unearthed, the Sanxingdui civilization has become more and more mysterious. .
By crudden elle3 years ago in FYI
The "ghost train" reappeared 58 years after it disappeared. Scientists got on the train to investigate, and the whereabouts remain a mystery
The plane hovered high in the sky, the captain disappeared, and the passengers in the cabin fainted like magic, so the flight was called the "ghost flight". Such a situation is hard to imagine for anyone to describe. Fortunately, it was explained clearly later with science. The plane deviates from the course and lacks oxygen at high altitude, which led to the air crash.
By crudden elle3 years ago in FYI
价值700亿亿美元小行星被发现，平均每人930亿，为何无人开采？
Introduction: With the continuous development of the economy, various countries have gradually withdrawn the banknotes belonging to each country for the sake of economic stability. The banknotes implemented by various countries have their own values, but if we say that the world is universal, it should be gold. Gold is a very precious metal on earth, and because gold is relatively rare, its value preservation rate is also very high.
By crudden elle3 years ago in Earth
It has a body length of 2 meters and eats 30,000 ants every day. It is indeed the giant anteater that the jaguar will hide when it sees it.
The surrealist artist Dali had a special pet, which is too common for him, but for others, it is really not something ordinary people can do to lead a big anteater to the street thing. While I'm curious as to how the giant anteater can be tethered and not slipped, there's something more worthy of discussion about this ancient beast.
By crudden elle3 years ago in Petlife
Some essays on prehistoric civilization
Pre-civilization is a prehistoric civilization conjecture made by scientists based on various relics of prehistoric human civilization excavated and discovered today. It is believed that the development of human beings is not as imagined in the past, but cyclical, and there are different civilizations on the earth in different periods. There are many conjectures about the existence of prehistoric civilizations, but they have not been recognized by the academic community. However, what is left to future generations is only a myth and a lesson in human suffering from disasters.
By crudden elle3 years ago in FYI
Laser detection, archaeologists uncover Mayan massive architectural ruins
Archaeologists have discovered a Mayan site with a large number of buildings in Mexico, covering an area of about 237 square kilometers, including thousands of houses, municipal buildings, reservoirs, more than a thousand lime furnaces and terraces. The researchers believe that it should have been a very prosperous area at the time.
By crudden elle3 years ago in FYI
The new view shows that there is still a "sun" in the solar system, which is the companion star of the sun
This is an amazing find! At a distance of 86.8 light-years from the earth, there is a sun-like star called HD4712B. Its mass is similar to that of the sun, only about 1.02 times that of the sun, which also makes this star and the sun similar to the sun. The same, is a yellow dwarf.
By crudden elle3 years ago in Earth
