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Surface finswimming (also known by its acronym, SF) is swimming on the surface of the water using mask, snorkel, and monofins.SF races are held for distances of 50, 100, 200, 400, 800, 1500, 4 × 50 mix relays (2 men's, 2 women's), 4 × 100 relays and 4 × 200 relays (meters) in swimming pools and over various long distances in the open water environment.
A snorkel is used to allow the user to breathe atmospheric air when their face is immersed in water while swimming or floating at the surface. [1] To work effectively, the snorkel must allow the user to inhale and exhale comfortably over an extended period, and provide a sufficient volume of air with appropriate oxygen and carbon dioxide content to maintain a sufficient and comfortable ...
The GUPPY II conversion (SCB 47), implemented from 1947 to 1951, was generally similar to the GUPPY I, except for retention of both periscopes and introduction of the recently perfected snorkel. The addition of three new masts—snorkel induction, snorkel exhaust, and ESM mast—required more room in the upper portion of the sail.
Luxury carmaker Ferrari <RACE.MI> has begun making parts to convert snorkel masks into respirators for treating patients with coronavirus and protecting medical workers. The idea of adapting the ...
Finis F. Conner (pronounced Fy-niss) was born on July 28, 1943, in Gadsden, Alabama. He was the last of five children born to a carpenter and his wife. Conner grew up poor in Alabama, Texas, and Florida. At the age of 19, with $100 in his pocket, he boarded a train for San Jose, California, where a brother lived.
The word SCUBA was coined in 1952 by Major Christian Lambertsen who served in the U.S. Army Medical Corps from 1944 to 1946 as a physician. [1] Lambertsen first called the closed-circuit rebreather apparatus he had invented "Laru", an (acronym for Lambertsen Amphibious Respiratory Unit) but, in 1952, rejected the term "Laru" for "SCUBA" ("Self-Contained Underwater Breathing Apparatus"). [2]