Sinabung mountain spews volcanic smoke in Tiga Pancur Village, Karo, North Sumatra, Indonesia, 09 June 2019. According to BNPB, Mount Sinabung erupted, blowing volcanic ash more than 7,000 meters high. Sinabung is one of the most active volcanos in Indonesia. It erupted in 2010 and since then killed 17 people in eruptions in 2014 and another nine people in 2016. (Photo by Sarianto Sembiring/EPA/EFE)

A pregnant woman poses on June 19, 2018 in Vertou, western France. France had an estimated population of 68.4 million by January 1, 2024, representing a further year-on-year increase of 0.3 percent, limited by a marked drop in the birth rate, the INSEE national statistics bureau of France reported on January 16, 2024. In 2023, 678,000 babies were born in France, 6.6 percent fewer than the previous year, the lowest number of births in any year since 1946. Over the same period, there were 631,000 deaths, down 6.5 percent on 2022, a year marked by the consequences of the Covid-19 pandemic and episodes of extreme heat. (Photo by Loic Venance/AFP Photo)

Competitors practice their moves before taking part in the UK Hobby Horse championship at Bury Farm Equestrian Centre on September 08, 2024 in Slapton, United Kingdom. While hobby horsing as a form of play has been around for centuries, the modern-day interpretation of the sport originated in Finland.(Photo by Dan Kitwood/Getty Images)

A goat hops from student to student during a goat yoga class at the University of Tennessee on August 25, 2022 as part of welcome back week. The session was organised by Goat Yoga Nashville. (Photo by Matt Hamilton/Chattanooga Times Free Press via AP Photo)

A woman poses with her twins before the Igboora World Twins Festival 2024, in Igbo-Ora on October 12, 2024. (Photo by Olympia de Maismont/AFP Photo)

NASAs Desert Research and Technology Studies (Desert RATS) team members practice with a Moon rover prototype for future Artemis missions at the Black Point Lava Flow near Flagstaff, Arizona, on October 24, 2022. (Photo by Olivier Touron/AFP Photo)

A student falls asleep as she holds a book containing a portrait of China's late chairman Mao Zedong during a lesson at the Democracy Elementary and Middle School in Sitong town, Henan province December 3, 2013. In a remote part of central China, the day starts at the Democracy Elementary and Middle School with a pre-dawn jog, some revolutionary songs and then an activity long since forgotten at other schools: reciting quotations from Mao Zedong's famed “Little Red Book”. While the ruling Communist Party that Mao led continues to hold him in esteem as the leader of the Communist Revolution, his radical policies and teachings have been largely shelved since his death in 1976 in favour of a pro-market approach that has turned China from a backwater into the world's second biggest economy. The 120th anniversary of Mao's birth is on December 26, 2013. (Photo by Carlos Barria/Reuters)

“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