The first American patent for a clothes dryer (U.S. patent #476,416) was received by George T. Sampson on July 7, 1892. From The History of Washing Machines.
High Fidelity recording, which Hi-Fi is short for, began in Germany during the war. The Reichs-Rundfunk-Gesellschaft (German Radio) had made experimental stereo FM music broadcasts in Berlin in 1941, using a custom version of the high-fidelity AC-bias Magnetophon, a German tape recorder made by AEG (German GE.) We can say that the inventors of High Fidelity were AEG engineers, Weber and Von Braunmuhl. German patent rights on the technology were seized by the U.S. Alien Property Custodian.
A man called Jack Mullin was asked by the Allied forces to investigate German recording technology at the end of the war. Mullin brought high fidelity recording to the rest of the world and improved upon the design of the Magnetophon, creating standards still used in the recording industry today. We can say that the standards of High Fidelity were set by Jack Mullin. - From The History of Sound Recording.
John Ericsson was the inventor of the first propelling steam vessels.
Don Wetzel was the inventor of the first commercially successful automated teller machine or ATM, an idea he said he thought of while waiting in line at a Dallas bank. Not surprising since Wetzel had a background in selling IBM computers to banks. The other inventors listed on the patent were Tom Barnes, the chief mechanical engineer, and George Chastain, the electrical engineer.
Tennis originated from a 12th century French game called paume (meaning palm) - it was a court game where the ball was struck with the hand. Paume evolved into jeu de paume and rackets were used. The game spread and evolved in Europe. In 1873, Major Walter Wingfield invented a game called Sphairistikè (Greek for "playing ball) from which modern outdoor tennis evolved. From The History of Tennis.
The first treatise on algebra was written by Diophantus of Alexandria in the 3rd century AD. Algebra comes from the Arabic word al-jabr an ancient medical term meaning the reunion of broken parts.
American, Albert Hull invented the Magnetron in 1921.
The history of dental braces or the science of Orthodontics is complex, many different inventors helped to create braces as we know them today.
In 1728, The Surgeon Dentist was published by Pierre Fauchard. The book had an entire chapter on ways to straighten teeth. The French dentist Bourdet wrote a book called The Dentist's Art in 1757, it also had a chapter on tooth alignment and on using appliances in the mouth. These were the first important references to the new dental science.
Historians say that two different men deserve the title of being called The Father of Orthodontics. Norman W. Kingsley, a dentist, writer, artist and sculptor, wrote his treatise on Oral Deformities in 1880. What Kingsley wrote influenced the new dental science of Orthodontics greatly. Later, a second dentist named J.N. Farrar wrote two volumes entitled A Treatise on the Irregularities of the Teeth and Their Corrections. Farrar was very good at designing brace appliances, and he was the first to suggest the use of mild force at timed intervals to move teeth.
Edward H. Angle (1855-1930) devised the first simple classification system for malocclusions, which is still used today. That is a way for dentists to describe how crooked your teeth are, which way they are pointing and how they are fitting together. Angle also started the first school of Orthodontics in 1901.
Eugene Solomon Talbot's (1847-1924) was the first to use X-rays for orthodontic diagnosis. Calvin S. Case was the first to use rubber elastics with braces. - From Dentistry Innovations
