For example, if a person pulls on a rope with a force of 80 n and another person pulls on the same rope in the opposite direction with a force of 80 n, the vector sum of the two forces is zero and the system is in equilibrium.
The Most Expensive Fish in the World bluefin tuna. The most expensive fish that was caught off the coast of northern Japan, was among 570 put up for auction. Japan is the worldâs biggest consumer of seafood, with Japanese eating 80% of the Atlantic and Pacific bluefins caught. The two tuna species are the most sought after by sushi-lovers.
Simply put, caviar is lightly salted roe or fish eggs. Sturgeon roe is considered premium and true caviar. It comes in four varieties -- beluga, sevruga, osetra and ship. The most expensive is beluga caviar ($174/ounce in 2008 pricing) from beluga sturgeon that swim in the Caspian Sea, which is bordered by Russia and Iran. Beluga is characterized by soft, pea-size eggs ranging from pale silver-gray to black.