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Generally speaking, in the weightless environment of space, water should float in the air and assume a spherical shape, as shown in the picture below. However, during the Shenzhou 13 space lecture, a photo of a water cup caused some confusion. From the picture, it can be seen tha
Why doesn’t the water on the space station float out of the cup?
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Some time ago, the issue of electric earthworms aroused widespread attention and discussion among netizens. Electric earthworms use a machine similar to electric fish to insert two electrodes into the ground. After turning on the switch, the earthworms will automatically drill ou
After earthworms, wild scorpions are also in crisis. Scorpion catchers are searching all over to find out how harmful they are.
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Italian physicist Volta invented the battery. Italian physicist Volta. Although electric lights, telephones, refrigerators, televisions, and computers have entered people's homes, electric motors are also widely used in factories. These strong currents are drawn from generators.
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"Genius is on the left, madman is on the right." "The ultimate genius is madness, and the ultimate madness is genius." Regarding this point of view, some people agree and some do not.
26 years ago, the high school student who built a "nuclear reactor" at home later died of alcoholism and poisoning
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New Horizons brings new helpers to visible stars Introduction: After the completion of New Horizons' main mission, it will become the first mission to explore Kuiper Belt objects and will become part of a longer-distance survey project heading out of the solar system . ——The New
New Horizons, which recruits amateurs to stargaze together, is it very high-end?
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The study, published in Science on June 30, reports that the implant is made of biodegradable materials and is designed to reduce postoperative pain. There is an urgent need for better ways to relieve pain because currently available opioids can be addictive, and ice packs or coo
Still using ice cubes to relieve pain? Science: Try this method
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Although infinity is a rather illusory and abstract concept, and it is quite taboo in physics to use any definition of "infinite", it is still a very interesting question. Let's not talk about "infinitely long" ladders for now. Perhaps it is more acceptable to use "long enough".
Can we use an infinitely long ladder to leave the earth without reaching the first cosmic speed?
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Our country has a vast territory and has all kinds of terrains. Among them is a kind of landscape, the cause of which scientists have not been able to figure out yet. The story starts with NASA satellites in the United States in 2014. When they passed through the sky over Inner M
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Not long ago, a lion with full bangs became a hot search topic. Do keepers give animals haircuts? What is the daily work of a breeder looking after ligers and other beasts, as well as animal cubs? Writer/Reporter Lu Bingxin Graphic Editor/Chen Yongjie New Media Editor/Lv Bingxin
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In a new study published on November 4, 2021, a new computer model of the black hole in the M87 galaxy was created. New computer models show that the first (and only) black hole to be photographed by humans is ejecting huge streams of plasma at nearly the speed of light.
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Modern science believes that our universe was born 13.8 billion years ago. 13.8 billion years ago, a singularity exploded. The singularity is an infinite mass, infinite energy, infinite heat, infinite mass, and infinite density. Large, infinitely small point. After the explosion
There is a gravitational source outside the orbit of Pluto. Scientists: It may be the legendary ninth planet
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When it comes to snails, the first thing that comes to mind is that they have a thick shell. In fact, in addition to being known for their thick shells, snails are also the animals with the most teeth in the world.
Snails are said to be the creatures with the most teeth in the world. So what are the uses of so many teeth?
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Walking people have to adjust their gait again and again to walk on curbs or steps. Whether intentionally or not, everyone has developed control strategies to control muscle activity in response to changes in the outside world, thereby protecting them from tripping. effects of ti
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The majority of overseas Chinese are very concerned about Hong Kong's continued stability, prosperity and development. Recently, Sun Dawen, a well-known Chinese scientist and academician of the European Academy of Humanities and Natural Sciences, wrote an article to express his w
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Got a story for July 4th? Today is also called aphelion. This day is the day when the earth is farthest from the sun. The time it takes for the earth to orbit the sun is one year. The place where the earth is closest to the sun is called perihelion. It is in early July every year
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According to Global Network, in an environment of increasingly tense international situation, NASA Administrator Nelson recently made a series of remarks against China. In an interview with German media, he hyped up the "Chinese space threat theory" and bluntly stated that China
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In order to strengthen agricultural and fishery exchanges and cooperation between Guangdong and Macao and share the characteristic high-quality agricultural products of Guangdong Province with Macao compatriots, on May 14, the Guangdong-Macao agricultural and fishery exchange eve
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According to a report by Japan's Kyodo News Agency on July 4, Japanese Deputy Chief Cabinet Secretary Seiji Kihara said that a Chinese naval ship sailed into the contiguous zone near the Diaoyu Islands that morning.
One action is worse than a hundred warnings. Chinese and Russian warships appeared in the waters of Diaoyu Islands, and Japan protested to China
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At 1 o'clock in the morning, the bridge port was brightly lit. Five trucks loaded with fish, shrimp, crabs and shellfish entered the customs supervision area of the bridge port. In a few minutes, the background automatic verification was completed, the procedures were completed
The value of the goods is 1.6 billion! 24,000 tons of aquatic products will be exported through the Hong Kong-Zhuhai-Macao Bridge port in 2021
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At 3 a.m., a truck loaded with fresh fish and shrimp drove into the customs supervision area of the Zhuhai Highway Port of the Hong Kong-Zhuhai-Macao Bridge. It completed the "one-stop" smart checkpoint automatic inspection and release in a few minutes and headed for Hong Kong.
Hong Kong-Zhuhai-Macao Bridge Customs supervised 9,251 tons of aquatic products supplied to Hong Kong in the first quarter
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This is no ordinary farmer's market. Visiting here is like visiting a small aquarium. The fireworks here also make people linger. If you want to eat seafood, go to the market and slowly select your favorite delicacies that are well-reviewed. 1 Fishing Boats in Sai Kung, Hong Kong
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After the National Day, Hailing District began to gradually enter the off-season for tourism, with a significant decrease in tourists. The reporter learned at the Zhapo Farmers Market that the demand for fresh seafood in the market has dropped significantly, and the price of fres
Entering the off-season of tourism, the price of fresh seafood in Hailing Zhapo has plummeted
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