Negative Staining Negative staining is a rapid procedure used for viewing small particles, such as viruses, in fluids. For specimen processing, large particles (e.g., bacteria or cell debris) should be centrifuged out at a low speed (e.g., at â¼2,000 Ã g) for 3 to 5 min.
The official IGFA world record for great white sharks was set on April 21, 1959. A man named Alf Dean caught a 2,664 pound great white shark off Ceduna, Australia. And hereâs the best part: this catch beat the old record by a mind-boggling 1,596 pounds.
A widely distributed photo taken in 1945, for example, shows a great white shark caught in Cuban waters. Known as the Cojimar Specimen, the shark at the time was said to measure 21 feet long and weigh 7,100 pounds. An entire village seemed to come out for the photo, since several adults are seen in the background, while kids sit on the long-dead shark, legs dangling over the side.