An aerial drone photo shows a view of the Wujiangzhai scenic spot in Zunyi, southwest China's Guizhou Province, March 14, 2024. The Wujiangzhai scenic spot, with its natural landscape and local folk customs, offers a blend of sightseeing, leisure activities and exhibitions, making it a popular destination for tourists. (Photo by Xinhua News Agency/Rex Features/Shutterstock)

An adult and two children stop to cool off at the water from an open fire hydrant in hot and humid weather in New York City on Thursday, July 11, 2024. After dealing with extreme humidity and heat for the past few days the trip-state area got a break as humidity levels took a slight but noticeable drop. (Photo by John Angelillo/UPI/Rex Features/Shutterstock)

Scientists trekking for days to the undisputed furthest north land point on the planet, in October 2024 were greeted by an unexpected welcoming party: a stoat, whom they named Randall. The team were heading to Kaffeklubben Island, also known as Inuit Qeqertaat, off the northern tip of Greenland, about 440 miles from the North Pole, when Randall emerged from a cairn of rocks, showing no fear as he went to investigate them. (Photo by Jeff Kerby/Magnus News)

Workers stir hundreds of large ceramic pots as they spend months making a traditional soy sauce on October 14, 2020. Arranged in rows, the containers can hold up to 50 litres of Ban Soy sauce. During the drawn out process the sauce is stirred every two days for two to six months. Ban Yen Nhan village in the Hung Yen Province of Vietnam is famous for its traditional and distinctive method of making the sauce. (Photo by Nguyen Quy/Solent News)

People are seen at Avalon Beach on December 18, 2020 in Sydney, Australia. A cluster of Covid-19 cases on the northern beaches of Sydney has grown to 28, prompting NSW health officials to urge residents of affected suburbs to stay home. Traffic at Sydney Airport has increased as people rush to leave the city with several states imposing quarantine restrictions for New South Wales residents. (Photo by Jenny Evans/Getty Images)

An orphan plays with her new hula hoop during the food and toy distribution, for total about 500 orphans in 11 orphanages, by National Muslim COVID-19 Response Committee to celebrate Eid al-Fitr, the Muslim holiday which marks the end of the fasting month of Ramadan at Good hope markazil Banatil Islamia orphans centre in Nairobi, Kenya, on May 25, 2020. (Photo by Yasuyoshi Chiba/AFP Photo)

A Thai performer puts his head inside a crocodile's mouth during a media preview performance as part of preparation to reopen Samutprakarn Crocodile Farm and Zoo in Samut Prakan province, Thailand, 19 March 2024. (Photo by Rungroj Yongrit/EPA)

“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