When was barb wire patented?

When was barb wire patented?

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1) The first hand glider was designed by...?

2) In which decade was the telephone invented?

3) William Frederick is credited with the invention of the modern frisbee in the mid 1950's. In 1957 the Wham-O Company bought his idea and the rest is history. They named the toy after William Frisbie who was a ________?

4) Who invented Dynamite?

5) The Manhattan Project was started by President Roosevelt in 1942 to ensure that the U.S. beat the Germans in developing a nuclear bomb. Whom did Roosevelt appoint as scientific head the Manhattan Project?