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).
How fast can fish swim? I seriously question the speeds often given for any fish, especially when Wikipedia and some reputable some encyclopedias claim that sailfish are supposed to be the fastest fish and can hit 60 miles per hour. I once went to several references and online sites looking for Orca speeds. I found a range of speeds from 25 to 35 miles per hour (from here on shortened to mph) on the publications and web sites. None were anywhere near as fast as some the speeds some fish can supposedly attain. Since Orcas can run down, catch, and eat, blue fin tuna, I question all the old, unsubstantiated fish speeds.