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== '''[[Los Alamos National Laboratory]]''' ==
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''by  [[User:Milton Beychok|Milton Beychok]], [[User:Ro Thorpe|Ro Thorpe]] and [[User:Daniel Mietchen|Daniel Mietchen]]
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==Footnotes==
 
'''Los Alamos National Laboratory''' (LANL), located in [[Los Alamos]], [[New Mexico]], is one of several [[U.S. Department of Energy]] (DOE) national laboratories.  It is noteworthy as the site where the first [[atomic weapon]] was developed under a heavy cloak of secrecy during [[World War II]], and has been known variously as '''''Site Y''''', '''''Los Alamos Laboratory''''', and '''''Los Alamos Scientific Laboratory'''''.  Today, it is recognized as one of the world's leading science and technology institutes.
 
{{Image|Trinity test.jpg|right|200px|Trinity test of an [[Nuclear weapon|atomic bomb]] on July 15, 1945 at 0.016 seconds after detonation. The fireball was about 200 metres wide.}}
Since 2006, LANL has been managed and operated by [[Los Alamos National Security, LLC]] (LANS).<ref name=LANS/>  
LANL's self-stated mission is to ensure the safety, security, and reliability of the nation's nuclear deterrent.<ref name=LANL-Mission/> Its research work serves to advance [[Biology|bioscience]], [[chemistry]], [[computer science]], [[Earth science|earth]] and [[environmental science]]s, [[materials science]], and [[physics]] disciplines.<ref name=LANL-About/><ref name=LANL-Overview/>
 
===History===
 
The [[Manhattan Project]] was the secret [[United States]] project conducted primarily during [[World War II]] with the participation of the [[United Kingdom]] and [[Canada]] that culminated in developing the world's first [[nuclear weapon]], commonly referred to at that time as an ''atomic bomb''.
 
The project was initiated in 1939 by [[U.S. President]] [[Franklin Delano Roosevelt]] after he received a letter from physicist [[Albert Einstein]] (drafted by fellow physicist [[Leó Szilárd]]) urging the study of [[nuclear fission]] for military purposes, under fears that [[Nazi Germany]] would be first to develop nuclear weapons. Roosevelt started a small investigation into the matter, which eventually became the massive [[Manhattan Project]] that employed more than 130,000 people at universities across the United States, the United Kingdom and Canada as well as at the three major design, development and production facilities: Los Alamos; Hanford, Washington; and Oak Ridge, Tennessee.
 
''[[Los Alamos National Laboratory|.... (read more)]]''
 
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Latest revision as of 10:19, 11 September 2020

The Irvin pin. The eyes have always been red, but there are urban legends about the meanings of other colors.
A pin from another company, possibly Switlik or Standard Parachute. This style is common in catalogs and auctions of military memorabilia.

The Caterpillar Club is an informal association of people who have successfully used a parachute to bail out of a disabled aircraft. After authentication by the parachute maker, applicants receive a membership certificate and a distinctive lapel pin.

History

Before April 28, 1919 there was no way for a pilot to jump out of a plane and then to deploy a parachute. Parachutes were stored in a canister attached to the aircraft, and if the plane was spinning, the parachute could not deploy. Film industry stuntman Leslie Irvin developed a parachute that the pilot could deploy at will from a back pack using a ripcord. He joined the Army Air Corps parachute research team, and in April 1919 he successfully tested his design, though he broke his ankle during the test. Irvin was the first person to make a premeditated free fall jump from an airplane. He went on to form the Irving Airchute Company, which became a large supplier of parachutes. (A clerical error resulted in the addition of the "g" to Irvin and this was left in place until 1970, when the company was unified under the title Irvin Industries Incorporated.) The Irvin brand is now a part of Airborne Systems, a company with operations in Canada, the U.S. and the U.K.[1].

An early brochure [2] of the Irvin Parachute Company credits William O'Connor 24 August 1920 at McCook Field near Dayton, Ohio as the first person to be saved by an Irvin parachute, but this feat was unrecognised. On 20 October 1922 Lieutenant Harold R. Harris, chief of the McCook Field Flying Station, jumped from a disabled Loening W-2A monoplane fighter. Shortly after, two reporters from the Dayton Herald, realising that there would be more jumps in future, suggested that a club should be formed. 'Caterpillar Club' was suggested because the parachute canopy was made of silk, and because caterpillars have to climb out of their cocoons and fly away. Harris became the first member, and from that time forward any person who jumped from a disabled aircraft with a parachute became a member of the Caterpillar Club. Other famous members include General James Doolittle, Charles Lindbergh and (retired) astronaut John Glenn.

In 1922 Leslie Irvin agreed to give a gold pin to every person whose life was saved by one of his parachutes. By 1945 the number of members with the Irvin pins had grown to over 34,000. In addition to the Irvin Air Chute Company and its successors, other parachute manufacturers have also issued caterpillar pins for successful jumps. Irvin/Irving's successor, Airborne Systems Canada, still provides pins to people who made their jump long ago and are just now applying for membership. Another of these is Switlik Parachute Company, which though it no longer makes parachutes, still issues pins.

Footnotes