"NGC 891 is a galaxy about 30 million light-years away from the Andromeda galaxy, discovered by William Herschel on October 6, 1784. This galaxy is a member of the NGC 1023 galaxy in the local supercluster." Do you think We...
You put some zinc into the hydrochloric acid in a test tube. The formation of hydrogen gas can be seen. That's the chemistry you know. Zn + HCl → ZnCl2 + H2 In 1766, Henry Cavendish identified this element and...
Aurora is mainly seen in colors like green, red, blue and pink in South Pole. Their color appears as particles coming from the sun collide with various gas particles in the Earth's atmosphere.
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