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64 BIOGRAPHIES
64
19. 21.
 Galileo Galilei made great
improvements to the telescope and Albert Einstein was a German
became the first person to look at mathematician and physicist. He
the Moon through it. developed the special and general
theories of relativity. He won the
 Dmitri Mendeleyev discovered the Nobel Prize for physics
periodic law and created the periodic for his explanation
table of elements.
of the photoelectric
 James Murray Spangler is known effect in 1921.
as an inventor of a first portable .........................
EDİTÖR YAYINLARI
vacuum cleaner.
 Alexander Fleming discovered the
first antibiotic drug, penicillin. Thanks Find the appropriate option to complete
to his discovery, he has saved millions the text above.
of people’s lives and won the Nobel A) He was one of the most brilliant
Prize in 1945. scientists in history.
B) He became unsuccessful in the area
Which of the sentences does not exist in of physics.
the information above?
C) He didn’t receive any awards in his
A) Fleming and Mendeleyev made great life.
contributions to the world of science
with their discoveries. D) He was interested in only one field of
science.
B) Galileo was an astronomer and
Fleming was a scientist at the field 22. Back in the nineteenth century, when
of medicine. Louis Braille was just three years old,

C) They all achieved success in different an accident ............ him blind. As he
fields of science. grew, Louis ......... to read and write, but
he felt frustrated with the few slow,
D) All of them were great inventors in
history with their successes. difficult methods available at the time
for blind people. So, Louis came up with
an idea, and as a teenager, he .......... a
special “language code” that would help
make it much easier for blind people to
20. John Logie Baird ................ the first read and write.
mechanical television. So, he is known as Which of the following words does not
"The Father of Television". use to complete any of the blanks in the

Fill in the blank with the suitable option. text above?
A) made B) discovered A) invented B) wanted
C) received D) contributed C) struggled D) left