in any case it s clear a light year is a vast expanse over a year light travels 5 87849981 x 10 12 miles roughly 9 4605284 x 10 12 kilometers written out that s 5878499810000 miles or 9460528400000 kilometers
Earlier racing had used carts. In its final form it is little more than a U-shaped shaft mounted on two wheels with a seat at the end of the U. When it was introduced in harness racing early in the 19th century it weighed about 125 lb (56 kg), but by the 1870s it had been reduced to 46 lb (21 kg).
sulky-a light two-wheeled vehicle for one person; drawn by one horse. wheeled vehicle-a vehicle that moves on wheels and usually has a container for transporting things or people; the oldest known wheeled vehicles were found in Sumer and Syria and date from around 3500 BC.