Science
Science
What high technology does Tianhe core cabin have? To break two world records, US demands technology sharing
On April 29, 2021, with the successful separation of the huge Long March 5B low-Earth orbit from the core module of the Tianhe space station, my country finally has a space station in the true sense. The successful launch of the Tianhe core module not only represents a breakthrough in space technology in my country and even developing countries, but also broke a number of space station world records, taking a breakthrough step for the exploration of the universe for all mankind.
By witty lukas4 years ago in FYI
It is a large canine that dares to snatch food from cougars, and the cause of its extinction is a mystery
Back in North America 100,000 years ago, a hungry cougar successfully hunted down a flat-headed lion after a fierce battle. When it was about to enjoy delicious food, in the jungle not far away, there were hissing footsteps, accompanied by a low roar. The cougar was immediately alert, his eyes fixed on the direction of the sound. At this moment, a pair of dire wolves with green eyes came out of the jungle and slowly approached the cougar.
By witty lukas4 years ago in FYI
Hell ants from the Cretaceous period, found in amber, about 99 million years ago
Not long ago, when a scientist was studying amber fossils, they found an ant that was hunting in an amber. This ant is not small. It is an extinct ancient species. Its name is "Hell Ant". It has a time of about 99 million years, but it is not the ancestor of modern ants. The animal it was preying at that time was probably the ancestor of the current cockroach. At this moment, it happened to be wrapped in resin, forming a precious fossil.
By witty lukas4 years ago in FYI
Which species will be inscribed on the last gravestone in the world's extinct animal cemetery?
Throughout the history of the development of the universe, we find that the extinction of a species is not a rare event. In the long history of the past 450 million years, the earth has experienced five historical periods in which the species and number of organisms have declined sharply. These events are called "five mass extinctions". The most famous is the fifth extinction, 96% of marine life and 75% of land life suffered mass extinction, including the dinosaurs that dominated the world for 140 million years. Due to the extinction of dinosaurs, mammals also began to multiply, and primitive humans began to multiply.
By witty lukas4 years ago in FYI
17 countries will participate in the Chinese space station experiment! US and Russia apply to participate, NASA is excluded
The smooth entry of the Tianhe core module into orbit means that we have created new opportunities for international space exploration cooperation. The International Space Station will be largely retired in 2024. Can astronauts from the International Space Station fly to the Chinese Space Station for guest work? This time Russian experts have the answer.
By witty lukas4 years ago in FYI
A pregnant ancient Egyptian mummy has been discovered for the first time in shocking world
Archaeologists believe they were scanning the mummy of the ancient Egyptian priest Hall Jehuti. Then, on the abdomen of the corpse, the image showed what appeared to be the bones of a small foot.
By witty lukas4 years ago in FYI
Fun Facts about Peisen: Undersea Quest, the mysterious world you don't know!
On the blue planet Earth, the ocean accounts for 70% of the area, while the land area for human growth is about 30%. Humans don't even know as much about the exploration of the ocean as Mars. Facing the vast and boundless sea, we can't help but wonder: what kind of scenery will it be in the depths of this vast ocean?
By witty lukas4 years ago in FYI
The most polite mating? Meerkat mongoose mates on a tree, males wait in line, no one dares to cut the line
On the island of Madagascar, the largest carnivore is the mongoose. It looks like a cougar, but has a dog-like mouth. Its weight is much smaller than that of cougars and dogs. The adult body weight is only 5-10 kg. However, due to the lack of local carnivores, and the larger ones have smaller heads, so It is the largest carnivore in the area.
By witty lukas4 years ago in FYI
Reveal! The design life is 10 years, and 12 astronauts will be stationed successively
At 11:00 on April 29, Beijing time, China launched the Tianhe core module of the space station with the Long March 5B Yao-2 carrier rocket at the Wenchang Space Launch Site. What is the captain of the Chinese space station? How to build? Who will live? The reporter interviewed relevant experts to find out.
By witty lukas4 years ago in FYI
Harvard beauty professor: think that the soul is real, and there is a fifth-dimensional space in the world
When it comes to the soul, the traditional religions in ancient my country believed that the soul of a person is immortal after death and can still exist in this world, but we cannot see it with the naked eye. Moreover, in many mythological costume dramas or fantasy movies, everyone can hear the saying that the soul is out of the body. So, is there really a soul in this world? Let's look at an experiment first.
By witty lukas4 years ago in FYI
When will the 10-meter-diameter super-large space station manned capsule be launched?
The basic dimensions of the core module of the space station that have successfully entered orbit are: a total length of 16.6 meters, a maximum diameter of 4.2 meters, and a total weight of 22.5 tons. The interior can provide more than 50 cubic meters of living and working space for astronauts who enter it in the future, which has been greatly improved compared with the two Tiangong series space stations launched in the past. It is basically a direct upgrade from a single room to a three-bedroom level. After the successful launch and docking of the future No. 1 and No. 2 large-scale experimental modules, the astronauts' perennial casual activity space will be further expanded from 50 cubic meters in the early stage to 110 to 180 cubic meters. It is equivalent to upgrading from a three-bedroom to a small villa again, which can basically be said to exceed the maximum activity space inside the Mir space station launched by the former Soviet Union. In fact, in terms of the size and weight of a single main core cabin, the 22.5-ton class is already the largest in the world. Because neither the current core module of the Star of the International Space Station nor the command module of the Mir that year has exceeded the maximum level of 22 tons. The current extra 0.5 tons.
By witty lukas4 years ago in FYI
