Inflatable latex rubber balloon, (the most common balloon) was Michael Faraday in 1824, via experiments with air and various gases. Inflatable castles and similar structures are temporary inflatable buildings and structures that are rented for functions, school and church festivals and village fetes and used for recreational purposes, mainly used by children. The growth in popularity of moonwalks has led to an inflatable rental industry which includes inflatable slides, obstacle courses, games, and more. Inflatables are ideal for portable amusements because they are easy to transport and store. The name given to such structures varies. They have been marketed with such
John G. King (physicist) John G. King (physicist) John Gordon King (1925–2014) was an English-born American physicist who was the Francis Friedman Professor of Physics (emeritus) at the Massachusetts Institute of Technology, the former director of MIT’s Molecular Beam Laboratory, and the former associate director of MIT’s Research Laboratory of Electronics. Best known for his work on null experiments, King was also involved in the Physical Sciences Study Committee (PSSC) with his doctoral advisor Jerrold Zacharias. Additionally, he is the inventor of the molecular microscope. He has received the Alfred P. Sloan Award (1956), the American Association of Physics Teachers (AAPT) Apparatus Competition prize