Win up to $1,000. The Veterans of Foreign Wars administer a scholarship with three awards, for $1,000, $3,000, and $5,000. This contest is open to Eagle Scouts still in high school, as well as members of several other scouting organizations.
Sir Robert Watson-Watt in the year 1935 invented the first practical radar in the United Kingdom. A Handley Page Heyford bomber was detected by his radar from a distance of 12 km.ir Robert Watson-Watt in the year 1935 invented the first practical radar in the United Kingdom. A Handley Page Heyford bomber was detected by his radar from a distance of 12 km.
In 1869 Russian chemist Dimitri Mendeleev started the development of the periodic table, arranging chemical elements by atomic mass. He predicted the discovery of other elements, and left spaces open in his periodic table for them.In 1886 French physicist Antoine Bequerel first discovered radioactivity.Thomson student from New Zealand Ernest Rutherford named three types of radiation; alpha, beta and gamma rays.n 1894 Sir William Ramsay and Lord Rayleigh discovered the noble gases, which were added to the periodic table as group 0. In 1897 English physicist J. J. Thomson first discovered electrons; small negatively charged particles in an atom. John Townsend and Robert Millikan determined their exact charge and mass.