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No, because the air pressure is too small, the water in the fountain pen cannot be pressed out by the atmospheric pressure and cannot work.
Yes, because the moon has a thin atmosphere, the stars can always be seen.
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1.On the way to the moon, it was weightless, and it was difficult for the water from the fountain pen to flow out, so it could not complete the mission
2.Yes, because there is no cloud obstruction
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In weightlessness, ordinary fountain pens cannot be used.
The second one did not understand.
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1.I don't think we can complete the mission, because there is no gravity in space, the pen we make is written by the downward flow of the pen under gravity, and there is no gravity in space, so we can't write words, we have to use a pencil.
2.No, the moon also has a rotation and can't see the stars every day (unless it's always hiding from the sun).
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1. Yes, because there is atmospheric pressure in the spacecraft, otherwise wouldn't the astronauts be in there early?
2, can or can't, the moon will also be dusty, and then it will be invisible, but one side is always facing the earth, and the earth is also a star to the moon.
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1.No, because weightlessness.
2.No, because light needs dust to reflect to make people see, and there is very little dust in the universe, so what people see in the universe is pitch black. The sun is also invisible.
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Space does not refer to the Moon. Space is the cosmic space outside the Earth's atmosphere. Space, which the Chinese dictionary explains as extremely high sky.
The International Aeronautical Federation (IAF) in Geneva, Switzerland, defines the boundary between the atmosphere and space: the boundary between 100 kilometers (about 62 miles) above the Earth's sea level is called the Kármán line. The Kármán line is named after the American scientist Theodore von Kármán.
Geophysicists divide atmospheric space, or airspace, into 5 layers. The troposphere has dense air called a dense atmosphere. The dense atmosphere becomes thinner and thinner as the altitude increases.
stratosphere, between 10 thousand and 40 thousand kilometers. Mesosphere, 40 km - 80 km. 80 km to 370 km is the thermosphere, which belongs to the lower part of the ionosphere.
The outer atmosphere, more than 370 kilometers of space, belongs to the upper part of the ionosphere. From the Earth's surface to an altitude of 100 kilometers, there is less and less air as the altitude increases. About 75% of the atmosphere above the Earth is in the troposphere and 97% below the stratosphere.
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1. The Moon is not in space. And in the environment of the earth.
2. The atmosphere of the earth's oak acacia orange is not as thin as people have always thought before, some scientists have found that the range and thickness of the earth's outer atmosphere are much thicker than we expected, and its range is enough to surround the moon around it, that is to say, the moon is still within the scope of the earth's atmosphere, so the moon is in the earth's environment, not in outer space.
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The difference between space and the moon is that the moon exists in space, and the moon is smaller than space. Space, as explained in the Chinese dictionary, is extremely high in the sky. The International Aeronautical Federation (IAF) in Geneva, Switzerland, defines the boundary between the atmosphere and space, which is known as the Kármán Line at an altitude of 100 kilometers above the Earth's sea level.
Geophysicists divide the atmospheric space into 5 layers. troposphere, sea level to 10 km. The troposphere has dense air called a dense atmosphere.
The air in the dense atmosphere becomes thinner and thinner as the altitude increases. Stratosphere, between 10 and 40 km. mesosphere, 40 to 80 km.
Between 80 and 370 km is the thermosphere, which belongs to the lower part of the ionosphere. The outer atmosphere, more than 370 kilometers of space, belongs to the upper part of the ionosphere.
The Moon is a spherical celestial body that orbits the Earth and is also the only natural satellite of the Earth. In Chinese, it is commonly known as the moon or moon, and in ancient times, it was also called Taiyin, Xuantu, Chanjuan, and Yupan. The Moon is the fifth largest moon in the solar system, with an average radius of about one kilometer, equivalent to times the radius of the Earth, and a mass of nearly one kilogram, which is twice that of the Earth.
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Categories: Education, Science, >> Science & Technology.
Problem description: Do you know when humans first landed on the moon?
What are some things to say about the moon?
Do you know what resources are available on the Moon?
What's the deal with an artificial moon?
Which is older Moon or Earth?
Why does a "lunar eclipse" occur?
What are the big and small "craters" on the moon?
Why did people become so light when they got to the moon?
Why does the Moon change in its circle?
What buildings on Earth can be seen on the Moon?
Is the Moon a planet?
What astronomical instruments can you name?
Why are observatories always built on a hill?
Why is the observatory round?
Who is the author of the famous "Ganshi Star Sutra" in the Warring States Period of my country?
What is the name of the calendar compiled by Zu Chongzhi?
Who compiled the most accurate calendar in ancient China? What is this calendar called?
How many days does Zu Chongzhi set a year in his own calendar?
What laws of planetary motion have been discovered in the Ganshi Star Sutra?
How many stars are recorded in the Ganshi Star Sutra?
Analysis: Hehe It's really too much, I'll still have a few questions:
1。"Lunar eclipse" is because when the sun and the earth and the moon are in a straight line, the earth blocks the sun's rays and forms a shadow on the moon, which is a lunar eclipse!
2。The artificial moon is just a hypothesis of scientists about the origin of the moon, and the existence of its claim has yet to be confirmed;
3。The Moon should be the same age as the Earth, or slightly older;
4。The large and small "craters" on the moon are caused by asteroid impacts, and tens of thousands of asteroids hit the earth every year, but the earth is protected by an atmosphere, so it is not as full of holes as the moon and other planets;
5。People get to the moon and become lighter because the gravitational pull on the moon is small; (You should know this).
6。The principle of the change of the circle and absence of the moon is similar to that of a lunar eclipse, so I won't say much about it here;
7。No buildings on Earth can be seen on the Moon, it's too far away.
8。The Moon is a satellite of the Earth, belongs to the Earth, and is too small in diameter to be considered a planet.
9。Most observatories are built on mountains because the air on the mountains is thinner, allowing for clearer observation of the stars, and there is almost no light pollution.
10。The authors of the famous "Ganshi Xingjing" in the Warring States Period of our country are Gande and Shi Shen.
11。Yuan Dynasty Guo Shoujing's "Calendar of Time".
Let's stop here, I'm not sure about the answer. Hope it helps you a little.
Also, I think it's rare for you to ask so many questions and not give points. Huh
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Space refers to the cosmic space outside the Earth's atmosphere.
That is, not only the Moon, but also the Sun, Mars, Saturn...And so on and so forth, it's space, and as long as it's out of the Earth's atmosphere, it's space.
Why does the Moon have a gravitational pull?
To put it simply, it is because the object has mass, it will attract. Complex. Gravitational force is ultimately related to mass, gravitational force is a fundamental force caused by mass, and Einstein's theory of relativity sees gravity as a manifestation of the curvature of space-time caused by mass.
Quantum mechanics believes that gravity is caused by two particles exchanging gravitons.
The gravitational pull of a black hole:
The reason why light is sucked into the black hole is because the gravitational force causes space distortion, and the light goes into the black hole with the distorted space, everyone knows that light only walks in a straight line, so the light is not drawn into it by gravity, but the light still walks in a straight line, but the space is distorted into the black hole, for example, draw a line on the paper, distort that paper, but it is still a line.
How do black holes hide themselves? The answer is curved space. We all know that light travels in a straight line, and this is the most basic common sense.
But according to the general theory of relativity, space bends under the action of a gravitational field. At this time, although the light still travels along the shortest distance between any two points, it is no longer a straight line, but a curve. Figuratively speaking, it seems that light is supposed to travel in a straight line, but the strong gravitational force bends it, but the gravitational force does not exist.
Or that gravity is just an explanation for this phenomenon. It is different from other forces.
"Gravity" is actually a manifestation of the distortion of space-time, to give a two-dimensional example: a net of straightened rubber bands.
1.Put two balls of different masses and the same volume, and the net twists.
2.On the basis of 1, let a ball move in a straight line at a uniform speed on the rubber band net, and the closer the distance between the straight line and the (same) ball, the larger the trajectory bend area.
3.On the basis of 2, let a ball move in a uniform straight line on the rubber band net to approach two balls of unequal mass, the distance between the straight line and the two balls is the same, and the ball with large mass passes through the trajectory bend area.
The phenomena illustrated by 2 and 3 are similar to gravity, and there are also cases where the mass and distance are larger, and the gravitational force is greater.
An object moves in a straight line due to inertia, but moves in distorted space, and is affected by gravity.
In fact, gravity distorts four-dimensional space-time.
Another example: light distorts when it passes through massive objects, but gravity cannot act on light, so the explanation is that light travels in a straight line and moves in distorted space-time. But the light still travels in a straight line.
In fact, gravitation is not a real force, such as Newton's gravitational force, which is a shorthand for the gravitational force between all things. There is conclusive evidence that gravity is the force of an electric field.
The gravitational force between two spheres, as measured by Cavendis's torsion scale, is the "intermolecular force".The action between cosmic stars is electrostatic gravity or repulsion, and the circular motion is due to the fact that a charged star is subjected to the Lorentz force in the magnetic field of another star.
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There are countless planets in space, and the Moon is just one of them.
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Space is not the Moon, which refers to the cosmic space beyond the Earth's atmosphere with a visual area of 120,000,000 light years, while the Moon refers to the Moon, which is a natural satellite of the Earth that rotates counterclockwise around the Earth with a radius of about kilometers. The following is the answer to "Is space the moon?", friends who are interested in the relationship between space and the moon can read on to understand.
1. The moon is located in the dust of space, space is not the moon, space and the moon are two different concepts.
2. Space, also known as the universe, can be divided into five layers: troposphere, stratosphere, mesosphere, thermosphere, and outer atmosphere.
3. Space is a high-vacuum, microgravity environment, and the temperature is constantly decreasing, with an average temperature of .
4. The Moon is spherical in shape, which may have been formed about 4.5 billion years ago, and the surface may have been formed by the impact of small celestial bodies.
Space does not refer to any planet, but to the entire empty lead space outside of atmospheric space, where there are spacecraft, space stations, manned spacecraft.
The above is the answer to the question "Is space the moon", there is not only the moon in space, but also Venus, Jupiter, meteors, dust, rays, etc. The Moon is the fifth-largest moon in the solar system, with an average distance of about 10,000 kilometers from Earth.
The moon does not emit light on its own, in fact, this is not clear qualitatively, who knows that she can shine by itself? In space, without the interference of water vapor, dust, pollutants and other components of the earth's atmosphere, the moon will take on its original color. The moon is better at regaining its original color.
Before humans landed on the moon themselves, we had high hopes that the lunar voyagers would find traces left on the surface of the moon by the first walkers from other planets. >>>More
The first to land on the moon was Armstrong.
Of course, the Earth is bigger, and the radius of the Moon is twice the radius of the Earth, that is, about 1,740 kilometers.
There is a widely accepted theory of the formation of the moon that is called"The Great Collision Theory"or"Rain Stone Theory"。According to this theory, about 4.5 billion years ago, shortly after the formation of the Earth, a Mars-sized celestial body called Theia collided with the Earth, and the collision was thought to be very large and violent. >>>More