Completed 0 of 10 questions.
Which of these three propositions was the first to be invented ?
Which of these proposition is not an idea of Leonardo Da Vinci ?
Who invented the printing press ?
What is the name of the man who invented the battery ?
Alexander Fleming discovered the penicillin but did he do it on purpose ?
Who have invented the light bulb ?
Who invented the first plane ?
In which decade was the television invented ?
What was the first purpose of the internet ?
Which of these inventions does not originate from China ?