When will man fly out of the solar system ① It has been more than 40 years since the Soviet Union launched the first man-made satellite in 1975. During this period, human beings broke away from the earth's gravity, flew out of the global village, and landed on the moon. However, human beings always feel that the pace of flying is too slow, and always anxiously look forward to when they can fly out of the solar system, Entering the space age? The Space Angel "pioneer" and "traveler" probes released by human beings in the 1970s have been flying out of the solar system for 20 to 30 years, trudging 6 billion kilometers and flying over the farthest orbit of Pluto. But has it ever flown out of the solar system? ② In fact, the boundary of the solar system is very broad. If the solar wind is used to calculate the range, the radius can reach 13.5-18 billion kilometers; if the solar gravity is used to calculate the range, the radius can reach 15 trillion kilometers, about 1.5 light years. It can be seen that the above-mentioned flying probe is far from the boundary of the solar system, The solar system is just a drop in the ocean. It's easy to cross a small river. To cross the ocean, we must have sufficient conditions. At present, human's understanding of the universe and space technology are far from enough for aerospace, and they are far from meeting the requirements of flying out of the solar system ③ So "pioneer" and "Voyager" probes can only be regarded as "space flight" out of the earth's atmosphere, far from "space flight" out of the solar system ④ For the space flight out of the solar system, it's just a piece of white paper, At present, one of people's visions is to develop space power sources with small mass, long operation time and high energy, such as electric rocket, laser rocket, nuclear rocket, microwave powered spacecraft, laser powered spacecraft, antimatter propulsion starship, etc, Flying at the speed of hundreds of kilometers per second, thousands of kilometers, tens of thousands of kilometers or even close to the speed of light, people will be able to fly out of the solar system and make interstellar voyages to other stellar systems, the Milky way or distant galaxies in their lifetime ⑤ When we can fly out of the solar system depends on the development level of human intelligence and science and technology on earth. Work hard, maybe in decades or hundreds of years, the dream of human yearning for interstellar navigation will become a reality 1. In what order is this article written? Extract the words that can reflect this order from the article. 2. In connection with the content of the full text, talk about the expression effect of the word "drop in the ocean" in the second paragraph. 3. What is the role of the third natural paragraph in the structure of the full text?

When will man fly out of the solar system ① It has been more than 40 years since the Soviet Union launched the first man-made satellite in 1975. During this period, human beings broke away from the earth's gravity, flew out of the global village, and landed on the moon. However, human beings always feel that the pace of flying is too slow, and always anxiously look forward to when they can fly out of the solar system, Entering the space age? The Space Angel "pioneer" and "traveler" probes released by human beings in the 1970s have been flying out of the solar system for 20 to 30 years, trudging 6 billion kilometers and flying over the farthest orbit of Pluto. But has it ever flown out of the solar system? ② In fact, the boundary of the solar system is very broad. If the solar wind is used to calculate the range, the radius can reach 13.5-18 billion kilometers; if the solar gravity is used to calculate the range, the radius can reach 15 trillion kilometers, about 1.5 light years. It can be seen that the above-mentioned flying probe is far from the boundary of the solar system, The solar system is just a drop in the ocean. It's easy to cross a small river. To cross the ocean, we must have sufficient conditions. At present, human's understanding of the universe and space technology are far from enough for aerospace, and they are far from meeting the requirements of flying out of the solar system ③ So "pioneer" and "Voyager" probes can only be regarded as "space flight" out of the earth's atmosphere, far from "space flight" out of the solar system ④ For the space flight out of the solar system, it's just a piece of white paper, At present, one of people's visions is to develop space power sources with small mass, long operation time and high energy, such as electric rocket, laser rocket, nuclear rocket, microwave powered spacecraft, laser powered spacecraft, antimatter propulsion starship, etc, Flying at the speed of hundreds of kilometers per second, thousands of kilometers, tens of thousands of kilometers or even close to the speed of light, people will be able to fly out of the solar system and make interstellar voyages to other stellar systems, the Milky way or distant galaxies in their lifetime ⑤ When we can fly out of the solar system depends on the development level of human intelligence and science and technology on earth. Work hard, maybe in decades or hundreds of years, the dream of human yearning for interstellar navigation will become a reality 1. In what order is this article written? Extract the words that can reflect this order from the article. 2. In connection with the content of the full text, talk about the expression effect of the word "drop in the ocean" in the second paragraph. 3. What is the role of the third natural paragraph in the structure of the full text?

The article is written in the order of asking, analyzing and answering questions
2. It shows that the solar system is small and the dream of human flying out of the solar system is still far away
3 ＼ play a transitional role. It is the transition from the previous description of human space achievements to the later description of future space achievements

How many nm is 0.01 μ m?

10 nm, 1 mm = 1000 μ M = 1000000 NM

How many nm is 85 μ m equal to
Is it equal to the third power nm of 8.5x10?
If not, please tell me the answer and explain why. Thank you

1 μ m (micron) = 10 (3) power nanometer (nm)
Equal to 8.5 * 10 ^ 4 nm