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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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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
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Due to the vastness of the universe and the diversity of life, many people have always believed that aliens should exist in the world. In recent years, with human exploration of cosmic civilization, both scientists and ordinary people have become more concerned about extraterrest
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Only three scientists worldwide have received this honor. Yuan Daoxian, a professor at the School of Geographical Sciences of Southwest University, is among them. He is a famous geologist, hydrogeologist and karstologist.
There are only three in the world, and the Chinese are among them
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@True Knowledge New Coordinates Regarding time, it has always been a major issue discussed by many philosophers. Einstein once said: "Time is a cognitive illusion of people, which seems to imply that time only exists on clocks and calendars." So, does time really exist or is it o
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The 6,000-meter deep sea is a world that is difficult for humans to reach. Some scientists once said that compared with the detection of the deep sea world, space exploration may be simpler. The deep sea is always deep and mysterious. During the Cold War between the United States
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The question raised by Xiao Li is: Yesterday, the beetle I was observing bit my finger and it escaped. However, what I can't understand is why the two beetles in the glass maintenance bottle will explode when they flap their wings.
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Midsummer has arrived, and it’s the time of year when people have the most intensive outdoor activities. How is the air quality in various places? Ministry of Ecology and Environment: Moderate ozone pollution will occur in many places in the first half of July. The Ministry of Ec
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The full text has a total of 569 words | It will take about 2.5 minutes to read. Is the ecology good? Watch where the birds fly and where the fish swim. Wild animals are the vane of ecological improvement. Recently, some people discovered a breeding colony of Sand Swallows along
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"China wants to occupy the moon" - NASA Administrator Nelson's accusation against China in an exclusive interview with Germany's Bild newspaper became an international joke this weekend. Some foreign media also quoted his words with a strong sense of irony: For example, an articl
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1. In 2021, a piece of news officially announced by Canada caused quite a stir in the entire scientific community. According to relevant news, Canadian officials discovered a female sub-adult wolf cub in the permafrost area. Interestingly, this little wolf died about 57,000 years
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Especially in the aerospace field, everyone is scrambling to be the first. Since ancient times, the weak will choose to emulate the strong, so many countries regard the United States as an example for them to learn from and as a goal to pursue.
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Text | "China Science News" reporter Zhang Shuanghu 35 years ago, when the National Natural Science Foundation of China Youth Science Fund (hereinafter referred to as the Youth Fund) project was established, it was "reserved" for a young person for one year. Immediately afterward
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On June 23, the Changer Dingyao 64 rocket lifted off from the Xichang Satellite Launch Center, sending three remote sensing satellites of the Ministry of Agriculture and Rural Affairs 3502 Group A, B, and C into low Earth orbit. However, this is not all of its mission. According
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I wonder if you have noticed a special-looking plant when you often go to the river in summer. There is a wetland park near my home. In the summer, I will go to the wetland park with my family. When passing by a place with water, I can see a plant that looks like a sausage, becau
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Xiao Ming is a bus driver and has been driving a bus for three years. Although Xiao Ming originally liked painting, he later felt that the benefits of driving a bus were better. Although Xiao Ming is good at painting, no one buys him. painting, and driving a bus is at least a bus
A woman had a problem with urgent need of urination on the bus and refused to listen to advice. Woman: Stop talking nonsense. I’ll get off at the next stop.
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A few days ago, a piece of information about the mid-term facelift of the domestically produced BMW 3 Series was exposed online. The new car is expected to be put into production in September this year, so the official launch should also be around September. As early as mid-May,
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Shi Liqian, member of the Standing Committee of the Municipal Party Committee and Minister of the Propaganda Department, relevant leaders of the Organization Department of the Municipal Party Committee, the Municipal Sixth Discipline Inspection Team, and members of the Fourth Cul
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A member of the Standing Committee of the Lianshui County Party Committee investigated the fate of this world and said "three tens of billions" in one breath! Text | Editor by Liquor Wolf Team | Yu Xiaomei On the morning of July 2, the Lianshui County Standing Committee collectiv
A survey of "three tens of billions", can this life's fate be sustained?
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"If you can't come up with two hundred thousand today, don't even think about marrying me home." The bride Litirui said with a heartless look. "In order to prepare for our wedding today, I have spent all our family's savings. Are you deliberately making things difficult for me?"
On the wedding day, the bride forced the groom away
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BYD announced in April that it would cease production of fuel vehicles. This news caused a huge stir. At that time, many professionals predicted that there might be major changes in the global automotive field. As the world's first traditional car company to stop producing fuel v
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