Rosa Parks sparks Civil Rights Movement. On this day in 1955, Rosa Parks, an African-American, was arrested and charged with violating a Montgomery, Ala., ordinance that required her to relinquish her bus seat to a white passenger. Her act of defiance sparked a yearlong bus boycott in the segregated city.
View full size image. The speed of light in a vacuum is 186,282 miles per second (299,792 kilometers per second), and in theory nothing can travel faster than light. In miles per hour, light speed is, well, a lot: about 670,616,629 mph. If you could travel at the speed of light, you could go around the Earth 7.5 times in one second.
Best Answer: Light is the physical speed limit of the Universe (as far as we know) (scientists take great pains not to declare anything conclusively because things have a habit of being disproven) and the answerer was right, that's about 186,000 miles per second-or - 300,000 kilometers per second.he shuttle travels at about 17,500 - 18,000 miles per hour when in orbit, pretty fast but nowhere near approaching light speed. There are various theories about how we could bump up the volume so to speak. There's the famous solar-sail theory.