The plant rotates 16 times a day, but each time it passes several places above the ground. This is due to the rotation of the earth. The second reason is that we often do not see the plant. That is...
From the history of science we can find many revolutions that have changed and corrected human perceptions of the universe. Through Copernicus, a revolution took place that established a heliocentric world instead of a world centered on the earth. Earth...
Hens Stephenson 2-18 is the largest star ever discovered.Hens Stephenson 2-18 has 2,150 times the size of our Sun.It is located in the constellation scutum, 18,900 light-years from Earth.
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