Traditional Culture Encyclopedia - The 24 Solar Terms - The geographical interest group of a school in Zaozhuang measured the shadow length of the school flagpole at noon on the vernal equinox, summer solstice, autumn equinox and winter solstice respective
The geographical interest group of a school in Zaozhuang measured the shadow length of the school flagpole at noon on the vernal equinox, summer solstice, autumn equinox and winter solstice respective
The geographical interest group of a school in Zaozhuang measured the shadow length of the school flagpole at noon on the vernal equinox, summer solstice, autumn equinox and winter solstice respectively.
When the sun shines directly on the tropic of cancer, it is the summer solstice in the northern hemisphere (the date is around June 22). On this day, the sun's altitude angle in the northern hemisphere is the largest, so the shadow of the school flagpole is the shortest at noon; When the sun shines directly on the tropic of Capricorn, it is the winter solstice in the northern hemisphere (the date is around 65438+February 22). On this day, the sun's altitude angle in the northern hemisphere is the smallest, so the shadow of the flagpole in the school is the longest at noon; When the sun shines directly at the equator, it is the vernal equinox (the date is around March 2 1 day) or the autumn equinox (the date is around September 23) in the northern hemisphere. On this day, the solar altitude angle in the northern hemisphere is between the winter solstice and the summer solstice, so the noon shadow length of flagpoles in schools is also between the winter solstice and the summer solstice. Therefore, it can be judged that A is the shadow length measured during the winter solstice, and B and C are vernal equinox respectively.
June of 12 is closest to the summer solstice, so at noon of June of 12, the shadow length of the school flagpole is closest to D in Figure 2.
Therefore, choose: d.
- Previous article:38 riddles and answers
- Next article:Gregorian calendar/10 2008 June 2008 16 should be avoided.
- Related articles
- Most yin and yang solar terms
- Look at her happy smile every day. Why is she depressed?
- 20 19 is there a discount for Sanqingshan National Day tickets? 1 1 How about going to Sanqingshan?
- How to make homemade soy sauce in Northeast China? Be specific, thank you!
- Warm pictures of 24 solar terms
- What is the best flower to send on Labor Day? The implication of sending flowers on Labor Day.
- Total Geke personality
- What is the grain in the grain? List of answers to the global mobile game rural test.
- What are the ancient poems about fright?
- Can beginning of spring sleep in spring at night? It is not advisable to lie down and sleep in beginning of spring.