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Harbor Freight Tools, commonly referred to as Harbor Freight, is an American privately held tool and equipment retailer, headquartered in Calabasas, California. It operates a chain of retail stores, as well as an e-commerce business. The company employs over 28,000 people in the United States, [5] and has over 1,500 locations in 48 states. [6] [7]
The Fulton surface-to-air recovery system (STARS), also known as Skyhook, is a system used by the Central Intelligence Agency (CIA), United States Air Force, and United States Navy for retrieving individuals on the ground using aircraft such as the MC-130E Combat Talon I and B-17 Flying Fortress. It involves using an overall-type harness and a ...
Parbuckling a cask up an incline. While the mechanical advantage used by a laborer to parbuckle a cask up an incline is 2:1, parbuckling salvage is not so limited. Each of the 21 winches used to roll the Oklahoma used cables that passed through two 17-part tackle assemblies (17:1 advantage).
The Larsen Ice Shelf is a long ice shelf in the northwest part of the Weddell Sea, extending along the east coast of the Antarctic Peninsula [1] from Cape Longing to Smith Peninsula. It is named after Captain Carl Anton Larsen , the master of the Norwegian whaling vessel Jason , who sailed along the ice front as far as 68°10' South during ...
Stretchy, self-healing paints and other coatings recently took a step closer to common use, thanks to research being conducted at the University of Illinois. Scientists there have used "off-the-shelf" components to create a polymer that melds back together after being cut in half, without the addition of catalysts or other chemicals. [42] [43]
A heat recovery steam generator (HRSG) is an energy recovery heat exchanger that recovers heat from a hot gas stream, such as a combustion turbine or other waste gas stream. It produces steam that can be used in a process ( cogeneration ) or used to drive a steam turbine ( combined cycle ).
A cross-section through a skin-on-frame kayak. The skin touches only at the two gunwales, the two stringers, and the keel. The shape of the cross section affects stability, maneuverability, and drag. Hull shapes are categorized by roundness, flatness, and by the presence and angle of chines. This cross-section may vary along the length of the boat.
Mean low temperatures for early to mid-January range from the low 40s Fahrenheit (4–7 °C) in north Florida to above 60 °F (16 °C) from Miami on southward. With an average daily temperature of 70.7 °F (21.5 °C), it is the warmest state in the U.S. [78] [79] In the summer, high temperatures in the state rarely exceed 100 °F (37.8 °C).