The technical principles of television were developed in the 1920s and television programs were first broadcast by the British in 1937. Only during the 1950s did TV sets become part of most U.S. households.
Albert Einstein was considered retarded, Isaac Newton was thought to be a slow learner, Joseph Priestly (the discoverer of oxygen) never took a science course, and Louis Pasteur got a C in chemistry. (From "Fabulous Facts").
Scientist have been producing Anti-Matter since the mid 1980's as a bi-product of Supercollider (particle accelerators) experiments at the Los Alamos National Laboratory & the CERN facility in Switzerland.
In 1969 the New York Times published an apology for once printing derisive comments (SEE BELOW) about an inventor's theory. Robert Goddard was on the receiving end of the Time's criticism of his contention that rockets could operate in outer space. The apology was printed the day after Apollo 11 left earth orbit for the moon. (From "Fabulous Facts").
Magnetic levitation (Mag-Lev) uses magnetic waves to suspend and propel vehicles along a guideway. It is an American technology created in the mid-1970s and being developed by the Japanese and Germans, who have built short mag-lev lines, but is still primarily a laboratory experiment and has never been used commercially. - Quoted from: Energy Wise Options for State and Local Governments By Michael Totten and Nita Settina. High-Speed Rail and Magnetic Levitation.
After a decade of top secret nano (technology) research Bruce Cornell and his team at Cooperative Research Centres for Molecular Engineering and Technology, have reportedly developed the first functioning nanomachine. This nanoachievement could revolutionise the biosensor industry with applications ranging from disease diagnosis to environmental monitoring. Read the full text of this historic first step in nanotechnology.