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.
As they pass, the slower car will appear to be moving backward in relation to the faster one. Copernicus simply applied the same effect to the planets. In the present situation, both Earth and Mars are moving in the same direction around the Sun, but the slower one, Mars, appears to move backwards compared to the faster one, Earth. The retrograde motion of Mars â like the apparent motion of the slower car on the highway â is nothing more than an illusion. The last two times Mars underwent retrograde motion (in 2003 and 2005), I received numerous inquiries asking if the sun, as seen from Mars, would also appear to stop and move backwards across the sky. The answer is most definitely no. The apparent backward motion will manifest itself after Mars arrives at its first stationary point on Nov. 15.