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Showing posts from April, 2024

How The Total Solar Eclipse Of 1919 Helped To Confirm Einstein's General Theory Of Relativity

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The total solar eclipse of April 8 2024 has generated a great deal of excitement all over the world. It covered some states in North America, Canada, and Mexico according to NASA. in a solar eclipse, the sun is completely blocked by the moon. This occurs only when the size of the moon is larger than the sun; when the moon is very close to the sun (nearer to perigee). Also, note that a variant of the total eclipse called the “annular” eclipse can also occur. However, this is when the moon is farther away and may not block the sun completely. In such an occurrence, the sun can be completely obscured from view. Total eclipses are rare because the sun, moon, and earth are not perfectly aligned most of the time ( you remember that the earth has a 23° tilt relative to the sun). Total eclipses happen when there is a coincidental alignment of these three celestial bodies such that they are on the same plane in the celestial sphere. The total eclipse is a rare occurrence ( it happens once in tw