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What are the wonders of nature
Caixia, rainbow, tornado, lightning, mirage, Aurora Borealis, Mount Everest, desert
What are the wonderful phenomena in nature?
Mirage, Aurora Borealis, tide, etc
What are the strange phenomena in the desert?
Strange phenomena in the desert
There should also be causes
Why?
It's so snowy that it disappears in a moment
The temperature has been 14 degrees below zero. There is no sunshine in the sky
Xinjiang news recently in the Lop desert strange weather phenomenon, so that the team of experts can not understand
From about 3 am on January 4, it began to snow in the Luobu desert. Until 12 noon the next day, when the scientific research team reached about 200 meters before the goal of Xiaohe, the snow stopped suddenly, and the sand dunes were evenly covered with about 5 to 10 cm of snow
However, after about 20 minutes, something strange happened. Just as the scientific research team hurriedly unloaded the equipment from the ATV and began to approach the Xiaohe cemetery, it happened that what they stepped on was no longer the snow, but the dry sand. Looking around, they could not see the shadow of snow in the desert?
…… .
Xia Xuncheng, leader of the scientific research team and researcher of Xinjiang Institute of ecology and geography, Chinese Academy of Sciences, said: "this is the driest area in China, with an average annual precipitation of 13 mm and evaporation of 4000 mm Why is the snow gone in a flash? I haven't thought about it yet .”
There is a kind of "gravel circle" in the desert, which is very wonderful. It is a big stone that has been broken up again and again after hundreds of years of heat expansion and cold contraction. It forms a round gravel circle on the ground, which is very similar to man-made works. In fact, it is formed naturally
Bending deformation of objects
Fried eggs can be found in the sand
What are the strange phenomena in the desert
RELATED INFORMATIONS
- 1. On the strange phenomenon of desert Over the past 40 years, mankind has gained a lot of new knowledge about deserts. What are the strange phenomena in deserts? Can we explain these strange phenomena with scientific principles?
- 2. List one or two phenomena that contain scientific truth in daily life
- 3. What time is it
- 4. Draw two circles to make the figure have two symmetrical axes
- 5. Is a axisymmetric figure
- 6. In the quadrilateral ABCD, point O is the midpoint of CD, Ao and Bo bisect ∠ DAB, ∠ ABC, ∠ AOB = 120 ° respectively, and prove AD + Half DC + BC = ab
- 7. As shown in the figure, △ ABC is an equilateral triangle, the bisectors of ∠ ABC and ∠ ACB intersect at O, Bo and Co, and the vertical bisectors of CO intersect at e and F As shown in the figure, △ ABC is an equilateral triangle, the bisectors of ∠ ABC and ∠ ACB intersect at points o, Bo and Co, the vertical bisectors of BC intersect at points E and F, and the perpendicular feet are m and N respectively
- 8. Each vertex of the triangle ABC makes a parallel line AD / / be / / FC, which intersects with the extension of BC, Ca and BA at points D, e and f respectively Prove s triangle def = s double triangle ABC
- 9. AB = ad ∠ ABC = ∠ ADC, AC and BD intersect at point O. it is proved that AC is the vertical bisector of BD
- 10. As shown in the figure, we know that the side length of equilateral triangle ABC is 3, M is a point on AC, passing through point m, make me parallel AB, intersect BC at point E, make MF ⊥ AB at point F, let AF = x, the median line length of trapezoidal emfb is y, find out the function analytic formula of Y and X, and write out the value range of X
- 11. Write a composition about the strange landscape formed by nature
- 12. Strange phenomena in life? It must be based on facts
- 13. The following phenomenon belongs to translation transformation () 1. The rolling of football on the morning ground; 2. The swing of pendulum; 3. The movement of bottled drinks on the conveyor belt
- 14. (translational) The following motions are not translational: A. The slip of a car on the ground when it brakes sharply B. The plane accelerated on the runway before taking off C. The movement of a kite in the air D. The cable car movement in the mountains
- 15. The two elements of graphic translation are and Completion
- 16. The (), () of the figure before and after translation are exactly the same
- 17. Can you give us some examples of the benefits of competition
- 18. Starting from the phenomenon of life, two experiments are given to illustrate the motion of liquid molecules
- 19. For example, some examples in our daily life show that molecules are constantly moving, and there are intervals between molecules
- 20. What phenomena in life can be explained as spreading along a straight line? (give at least three examples)