The âcity of loveâ dwarfs Barcelona in size, being incredibly large from one end to the other, particularly so for a European city. The amount of beautiful monuments to see in Paris is overwhelming â from the Louvre to Versailles, my artistic side was more than satisfied.
But how fast does the Earth rotate? You might be surprised to know that a spot on the surface of the Earth is moving at 1675 km/h or 465 meters/second. Thatâs 1,040 miles/hour. Just think, for every second, youâre moving almost half a kilometer through space, and you donât even feel it.
The same thing happens as Earth passes the slower moving outer planets. When we pass Jupiter, for example, the gas giant appears to reverse course in the sky for a couple of months. A schematic of how retrograde motion works when Earth (T) passes an outer planet (P) as they both orbit the sun (S).ometimes the planets appear to change direction in the sky. This retrograde motion is entirely an illusion caused by the Earth passing the slower moving outer planets. Sometimes, the planets seem to move backwards!