Question 1 - 10
Write ONE WORD ONLY for each answer.
THE DEVELOPMENT OF THE TELESCOPE
Roger Bacon (1200s)
- His invention assisted 1. with sight problems when they were reading.
Lipperhey
- 1608: he put concave and convex lenses together to create the telescope.
- The small telescope was first used in the 2..
Galileo
- 1609: he tried out different lenses to improve the telescope.
- He started 3. of the lenses he needed.
- The venetian government hoped to use this instrument for the 4..
Galileo’s astronomical discoveries
- The Moon:
He discovered its surface was mountainous.
- He worked out the height of the mountains by identifying spots that were 5..
- He created 6. of the moon’s surface.
- Jupiter:
- He realized that the bodies orbiting Jupiter were not 7. but moons.
Further development
- Scientists discovered that increasing the telescope’s 8. improved its power.
- 1670: Hevelius built a telescope 43 meters long.
- Poor results: the telescope will move with the 9..
- The problem was solved by attaching it to a 10..
. . .
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