Inventions and Discoveries

11. Who invented the computer?
a) Bill Gates
b) Steve Jobs
c) Alan Turing
d) Charles Babbage

12. Who discovered the double helix structure of DNA?
a) Rosalind Franklin
b) James Watson and Francis Crick
c) Linus Pauling
d) Frederick Sanger

13. Who invented the periodic table of elements?
a) Dmitri Mendeleev
b) Marie Curie
c) Antoine Lavoisier
d) Robert Boyle

14. Who discovered X-rays?
a) Marie Curie
b) Wilhelm Conrad Roentgen
c) Albert Einstein
d) Ernest Rutherford

15. Who invented the telephone exchange?
a) Almon Strowger
b) Alexander Graham Bell
c) Samuel Morse
d) Guglielmo Marconi