According to the passage, important inventions of the twentieth century ___.A.are not necessarily produced as a result of governmental support for military weapons research and development.B.came primarily from the huge laboratories of monopoly indust
Benjamin Franklin is famous for many of his inventions. While it would be impossible to define his most famous invention, some of the inventions he is most remembered for are the lightning rod, bifocals, Franklin stove, and glass armonica. ...
The 1800s saw the birth of several groundbreaking inventions that have since gone on to become some of the most commonplace. Imagine being able to talk to someone miles away in a time when cars had to be fed hay, scrubbed, and had ears, a nose and a tail, and you can get an inklin...
Read about William J. Levitt. Learn about the rise and fall of William Levitt, a housing developer, and learn about Levitt houses as his...
Lincoln Logs were invented in 1916 by John Lloyd Wright (1892-1972), an architect and one of the five children of the world-famous architect Frank Lloyd Wright. John patented his toy in 1920, and sold the logs through his toy company, the Red Square Toy Company. Playskool bought the righ...
The first recording of sound waves Leon Scottinvented the 'phonoautograph', the first device to record arbitrary sound in1857. It used a membrane (which vibrated in response to sound) attched to a pen, which traced a line roughly corresponding to the sound wave form on to a moving roll of...
we take the wheel as a ubiquitous piece of engineering that we rarely pay attention to. Before this invention came to the surface, humans were limited in transportation and haulage. The wheel was only one part of another life-changing invention: the wheel-and-axle. In other words, properly ...
The forerunner of the aerosol can was invented by Erik Rotheim of Norway. On November 23, 1927, Rotheim patented a can with a valve and propellant systems - it could hold and dispense liquids. The first aerosol can (a can than contains a propellant [a liquefied gas like flurocarbon] and...
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Here is information about some of the most important scientists and inventors who, through their inventions, have made the lives of scores of generations a lot easier. Mankind would not have progressed to the zenith of advancement it currently enjoys if not for the tireless work of these heroes...