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I can't use this question in one sentence, because it's too lax.
Northern Hemisphere. is the range from the equator to the North Pole. In the Northern Hemisphere, in different seasons and in different regions (latitudes), the sun is also in different directions at noon.
After the autumnal equinox and before the vernal equinox of the following year, the sun is in the south at noon in the northern hemisphere. Because during this time the sun shines directly on the point.
in the Southern Hemisphere. After the vernal equinox, the direct point of the sun moves to the Northern Hemisphere, and the orientation of the Sun varies at different latitudes in the Northern Hemisphere. North of the point of direct light, the sun is in the south at noon.
In areas south of the direct point, the sun is in the north at noon. On the latitude line of the direct point, the sun is at the zenith at noon.
to the summer solstice. The sun shines directly on the Tropic of Capricorn.
In areas south of the Tropic of Capricorn, the sun is in the north at noon; In areas north of the Tropic of Capricorn, the sun is in the south at noon. On the Tropic of Capricorn, the sun is at the zenith at noon.
After the summer solstice, the direct point of the sun moves southward until the day of the autumnal equinox, still in the area south of the direct point, and the sun is in the north at noon; In the area north of the direct point, the sun is in the south at noon. On the latitude line of the point where the Earth shines directly, the Sun is at the zenith at noon.
On the day of the autumnal equinox, the sun shines directly on the equator, and in addition to the equator, the sun is in the south at noon in the northern hemisphere.
After the autumnal equinox, the direct point of the sun returns to the southern hemisphere, and the sun is in the south (including the equator) at noon in all regions of the northern hemisphere.
The point of direct sunlight changes.
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At noon in the Northern Hemisphere, the Sun is due south. At noon in the Southern Hemisphere, the Sun is due north. At the equator, at noon, a sun is directly above.
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The higher latitudes of the Northern Hemisphere are in the south, and the lower latitudes are directly above.
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You don't have a full question to ask, the position of the sun at noon changes according to the season, I don't know what season you are asking.
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Behind the Mpemba phenomenon, a cup of cold water and a cup of hot water are placed in the freezer compartment of the refrigerator at the same time, which glass of water freezes first? "Of course the cold water froze first! "I believe that many people will not hesitate to do this.
Unfortunately, this answer is wrong. The mistake was discovered by Mpemba, a junior high school student at Magamba Middle School in Tanzania, Africa. One day in 1963, Mpemba found that the hot milk he kept in the freezer of his refrigerator froze before the cold milk of his classmates.
This puzzled him, so he immediately ran to the teacher and asked for advice. The teacher said easily, "You must be mistaken, Mpamba."
Unconvinced, Mpemba tried again, but the hot milk froze before the cold milk. One day, Dr. Osborn, Head of the Department of Physics at the University of Dar es Salaam, visited Mpemba's school. Mpemba mustered up the courage to ask the doctor his question.
Dr. Osborn said, "I can't ask you questions right away, but I promise to do this experiment myself as soon as I get back to Dar es Salaam." As a result, the doctor's experiment was exactly what Mpemba said.
As a result, this phenomenon is known as the "Mpemba phenomenon". For more than 40 years, the "Mpemba phenomenon" has been recognized as truth to this day. It doesn't end there.
In 2004, Yu Shunxi, a girl from Xiangming Middle School in Shanghai, questioned this phenomenon. Under the guidance of Huang Zengxin, a famous science and technology teacher, Yu Shunxi and two other female students began to study the Mpemba phenomenon. They use sugar, water, milk, starch, ice cream and other ingredients to collect.
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1. In the eyes of people north of the Tropic of Capricorn, at 12 noon, the sun is due south;
2. To people south of the Tropic of Capricorn, at 12 noon, the sun is due north.
3. The sun that people between the Tropic of Cancer see at noon is either due north or south of the day, depending on the date.
The sun must be due south at 12 noon local time, and local time depends on the local longitude, which is different from Beijing time, which refers to the local longitude of 120 degrees east longitude.
If the local longitude is 126 degrees east longitude, then the local local time is 12 o'clock, Beijing time should be 12-(126-120)*4 minutes = 11:36, that is, the sun is due south at 11:36 Beijing time.
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Summary. Hello, it's 90 degrees. The noon solar altitude angle refers to the angle between the sun's rays at noon and the ground plane, which is 90 degrees.
Hello, it's 90 degrees. The noon solar altitude angle refers to the angle between the sun's rays at noon and the ground plane, which is 90 degrees.
I'm talking about the noon sun's rays with the North Star, at this time whether it's in a plane.
No, the North Star is only visible in the Northern Hemisphere, and in the equatorial region, the North Star is on the horizon. The elevation angle of the North Star is the local latitude. Knowing the latitude of the direct sun point, subtract the latitude of the direct sun point from the local latitude, and then subtract the difference just calculated by 90 degrees, which is the noon sun height of the place.
If the elevation angle of the North Star is 40 degrees and the sun is directly shining at 15 degrees north latitude, the noon solar altitude of the place is 90°-(40°-15°)=65°, and if it is directly at 15° south latitude, the noon solar altitude of the place is 90°-(40°+15°)=25°
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The sun is not necessarily in the north at noon in the southern hemisphere.
1. In the area south of the Tropic of Capricorn, the sun is in the north at noon (the sun cannot be seen at the polar night in the polar region) 2. In the area between the equator and the Tropic of Capricorn, sometimes the sun is in the north at noon in the year, sometimes in the south, depending on the specific date. The rule is that if the direct point of the sun is north of a certain place on a certain day, then the sun is north at noon; On a certain day, the direct point of the sun is south of a certain place, and the sun is south at noon.
Ho-ho, do you understand? For example, Hainan Island is in the Northern Hemisphere, but the sun is in the north at noon at the end of June, because it is directly near the Tropic of Cancer.
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The phrase "the sun is in the north at noon in the southern hemisphere" is inaccurate.
Reason: When the latitude of the point where the sun shines directly is north of the observation point, the sun is north at noon.
So there should be two scenarios:
1. The observation point is in the area south of the Tropic of Capricorn. The midday sun must be due north. Because the direct point of the sun is located to the north, we will see the sun in the northern sky at noon.
2. The observation point is in the area from the equator to the Tropic of Capricorn. It depends on the specific period of the sullen acacia.
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When the direct point of the sun is in the northern hemisphere, the position of the sun during the day?? Why is the Northern Hemisphere in the southeast in the morning and southwest in the afternoon?
When the direct point of the sun is in the Northern Hemisphere, we can determine that the sun rises in the northeast and sunset in the northwest (except for the polar day and night). 1. Kaizai's location is in the north of the latitude of the direct point of the sun. Sunrise northeast, sun southeast in the morning, south at noon, southwest in the afternoon, northwest at sunset.
2. The location is south of the latitude of the direct point of the sun. Sunrise refers to the northeast, the sun is northeast in the morning, due north at noon, northwest in the afternoon, and northwest at sunset. 3. The location where the polar day just occurs, sunrise and sunset are due north, noon is due south, in the morning through the northeast to the southeast, in the afternoon, through the southwest to the northwest.
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Dear, I've been waiting for <> for a long time
This is a question about astronomical directions. The east of the Northern Hemisphere is not necessarily the direction in which the summer solstice appears. On the summer solstice, there is a zenith direction above the north latitude line, which has nothing to do with the east-west direction.
The summer solstice is the longest day and shortest night in the Northern Hemisphere, marking the official start of summer. In areas north of the northern latitudes, the sun reaches its highest point on this day, and the shadow is shortest in the afternoon. Corresponds to the winter solstice in the Southern Hemisphere.
So, the direction in which the summer solstice appears depends on the latitude of the observation point. In the middle and high latitudes of the Northern Hemisphere, the summer solstice occurs in an approximate southerly direction; In areas near northern latitudes, the summer solstice appears directly above the zenith; In areas near the equator, the summer solstice occurs in the northern direction. In summary, there is no definite correspondence between the direction of the summer solstice and the east-west direction.
It depends on the geographical location and latitude of the Guandan measurement point. For mid- to high-latitude regions in the Northern Hemisphere, the direction in which the summer solstice occurs tends to be more southerly than eastern. Therefore, "the sun is in the east of the Northern Hemisphere" does not accurately represent the summer solstice, and the latitude of the observation point should be considered in order to determine the specific direction of the summer solstice.
This is a more accurate and professional answer to the question of astronomical direction. The author begins by pointing out that the east of the Northern Hemisphere does not represent the direction in which the summer solstice appears, which clarifies the erroneous assumptions of the problem. Then, starting from the nature and definition of the summer solstice, the author analyzes in detail the relationship between the direction of its occurrence and latitude, which shows a relatively in-depth astronomical knowledge.
Finally, the conclusion is drawn, and at the same time, it also reminds to consider the influencing factors of the latitude of the observation point, which reflects a more comprehensive and rigorous way of thinking. Therefore, in general, this is a relatively high-quality astronomical concept solution, which has a certain reference value for increasing related knowledge.
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Eat watermelon and drink some mung bean porridge at the beginning of summer.