3D interactive artist Joe Hill poses with one of his works as part of the VisitBritain tourism campaign at Circular Quay on September 6, 2011 in Sydney, Australia. (Photo by Mark Metcalfe/Getty Images)

Young man making the O.K. sign. (Photo by George Marks/Retrofile/Getty Images). Circa 1950s

“The Labor Day Parade (or West Indian Carnival), is an annual celebration held on American Labor Day (the first Monday in September), in Crown Heights, Brooklyn, New York. Ms. Jessie Waddell and some of her West Indian friends started the Carnival in Harlem in the 1920s by staging costume parties in large enclosed places like the Savoy, Renaissance and Audubon Ballrooms due to the cold wintry weather of February. This is the usual time for the pre-Lenten celebrations held in most countries around the world. However, because of the very nature of Carnival, and the need to parade in costume to music, indoor confinement did not work well. The earliest known Carnival street parade was held on September 1, 1947. The Trinidad Carnival Pageant Committee was the founding force behind the parade, which was held in Harlem. The parade route was along Seventh Avenue, starting at 110th St.” – Wikipedia

Photo: A reveler looks on during the West Indian-American Day Parade September 5, 2011 in the Brooklyn borough of New York City. More than 2 million spectators were expected to attend the celebration of Caribbean culture. (Photo by Mario Tama/Getty Images)

“Igor Sikorsky (May 25, 1889 – October 26, 1972), born Igor Ivanovich Sikorsky was a Russian American pioneer of aviation in both helicopters and fixed-wing aircraft. He designed and flew the world's first multi-engine fixed-wing aircraft, the Russky Vityaz in 1913, and the first airliner, Ilya Muromets, in 1914. After immigrating to the United States in 1919, Sikorsky founded the Sikorsky Aircraft Corporation in 1923, and developed the first of Pan American Airways' ocean-conquering flying boats in the 1930s. In 1939 Sikorsky designed and flew the Vought-Sikorsky VS-300, the first viable American helicopter, which pioneered the rotor configuration used by most helicopters today. Sikorsky would modify the design into the Sikorsky R-4, which became the world's first mass-produced helicopter in 1942”. – Wikipedia

Photo: Westland Sikorsky H-5's, used by British European Airways Helicopters, which fly between London and Birmingham. The Sikorsky H-5, (aka R-5, S-51, HO3S-1, or Horse) (R-5 until 1948; company designation VS-327) is a helicopter built by Sikorsky Aircraft Corporation, formerly used by the United States Air Force, and its predecessor, the United States Army Air Forces, as well as the United States Navy and United States Coast Guard (with the designations HO2S and HO3S). (Photo by Harrison /Topical Press Agency/Getty Images). 22nd May 1951

Artist Will Ryman poses for photographs next to his installation entitled “The Bed” at the Saatchi Gallery in Chelsea on January 7, 2008 in London, England. (Photo by Chris Jackson/Getty Images)

A caterpillar driven ferry with a 24 horsepower engine takes holidaymakers from the mainland at Bigbury in Devon to Burgh Island, a quarter of a mile away. (Photo by Reg Speller/Fox Photos/Getty Images). 4th April 1935

An inflatable snake hovers during a performance by the French street theater company Plasticiens Volants on September 4, 2011 in Berlin, Germany. The spectale, featuring gigantic flying inflatable fairy-tale creatures and performers on stilts and in costume was a part of celebrations for the 125th anniversary of the Kurfuerstendamm, known locally as the Ku'damm, a shopping boulevard. (Photo by Adam Berry/Getty Images)

Former Ministry of Defence motorbikes (guide price £650 to £1250) being serviced ready for potential buyers on August 12, 2011 in Colsterworth, England. Witham LTD sells a variety of former MOD equipment and vehicles to foreign countries, domestic companies and private individuals. (Photo by Matthew Lloyd/Getty Images)