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36 Inventors

and Discoverers

Inventors are the individuals who develop a new process, appliance, machine, or article, while
discoverers are those who observe a scientific or natural phenomenon for the first time.

Read the descriptions and write the names of the inventors or discoverers. You may use the Help Box.

1 This German physicist discovered X-rays. He won the Nobel
Prize in Physics in 1901 for this path-breaking invention.
_______________________

2 This American physician and medical researcher invented and
developed the first safe and effective polio vaccine in 1955, at a time
when Americans feared polio as much as the atomic bomb.
_______________________

3 This physicist, astronomer, and mathematician was born in
1564 in Pisa, Italy. He invented the thermometer and developed
the telescope. He also propounded the Law of Pendulum.
_______________________

4 This Swiss biologist and physician discovered DNA in white blood
cells. He named the substance ‘nuclein’.
_______________________

5 This British inventor, chemist, and philosopher contributed to
the discovery of chlorine and iodine. In 1815, he invented a
safety lamp for coal miners.
_______________________

6 This French chemist and microbiologist lived in the nineteenth
century. He discovered that microorganisms cause fermentation and
disease. He developed vaccines for anthrax and rabies.
_______________________

Help Box

Sir Humphry Davy, Friedrich Miescher, Galileo Galilei, Jonas Salk,
Wilhelm Conrad Röntgen, Louis Pasteur

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