Which of the following was first patented by an Australian in 1889?

Which of the following was first patented by an Australian in 1889?

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1) What Galileo invented?

2) 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 ________?

3) In which decade was the telegraph invented?

4) When were bar code scanners invented?

5) Who had an explosive idea and first patented DYNAMITE?