#NAME?

Question

+

Select the correct answer.
Galileo was the first scientist to do which of the following?

Α. estimate the speed of light

B. propose the heliocentric theory

C. discover radioactivity

D. define and measure speed

E. invent the reflecting telescope

Answer 1

E

Step-by-step explanation:

Galileo, though not the first inventor of the refracting telescope, significantly enhanced its power. In 1609, he learned of the spyglass and began to experiment with telescope-making, grinding and polishing his own lenses.