Direction How well do you know the famous inventors of the world? The tests below will test your knowledge when it comes to famous inventors and what they invented.
41.

Who invented the first monorail (horse-drawn)?
A. Karl Drais B. Ivan Elmanov
C. Hub van Doorne D. Igor Yintzev
Answer and Explanation
Answer: Option B
Explanation:
42.

Who invented the implantable pacemaker?
A. Rune Elmqvist B. Rune Berg
C. Joshua W. Killi D. Walter Gates
Answer and Explanation
Answer: Option A
Explanation:
43.

Who invented the the computer mouse?
A. William H. Dobelle B. Rauno Nokia
C. Lars Magnus Ericsson D. Douglas Engelbart
Answer and Explanation
Answer: Option D
Explanation:
44.

Who invented the microprocessor?
A. Federico Fellini B. Friedrich Nestor
C. Fiodoro Fjodor D. Federico Faggin
Answer and Explanation
Answer: Option D
Explanation:
45.

Who invented the nuclear reactor?
A. Enrico Iglesias B. Siegfried Jasper
C. Johann Strauss D. Enrico Fermi
Answer and Explanation
Answer: Option D
Explanation: