White fish are further sub-divided into: 1  Round White Fish. Examples include cod, haddock, hake and pollock. 2  Flat White Fish. Examples include plaice, lemon sole, brill, turbot, black sole are common examples of this category. 3  Cartilaginous Fish. Ray, rock salmon and shark are examples.
In just three years, a solar sail could reach a speed of over 160,000 kilometers per hour (100,000 miles per hour). At that speed you could reach Pluto in less than five years. photon reflecting off the mirror-like surface of a solar sail gives the sail a double kick -- a push equal to twice the photon's momentum (one push from the sail stopping the photon and one from it reflecting the photon and accelerating it away).
Nevertheless her average speed was around 10.5 knots. These are the record speeds set by the fastest sailing ships. It is probably fair to say that most sailing ships in the 19th and early 20th centuries averaged between 5 â 8 knots on average depending on the size of the ship, the route and the weather. There are nothing wrong with these speeds but they are not comparable with container ships, even those slow steaming at 12 knots.