Check your comprehension. ~ What magnification did the early erect-image two-lens instruments have?

~ What magnification did the early erect-image two-lens instruments have?

~ Who or what is the hero of the story about the invention of the telescope?

1. What dida Padovan student want to do with the first book by Galileo published in Padua?

2. What does the expression “extended senses” mean?

3. What did Galileo do to improve remarkably the early telescope?

4. Was his book The Starry Messenger published earlier than the accounts of scientists and famous amateurs who were gazing at the sky through telescopes at about the same time?

5. Does Prof. Van Helden imply that readers of his book know Latin and Medieval English, French, Italian and Dutch?

6. Did the noble Girolamo Sirtory manage to make a better telescope than Galileo’s?

7. Why were the first telescopes things of no great value? Who used them?

8. What was magnification of the first telescopes? Which magnification seemed striking to people of that time?

9. What was the magnification of Galileo’s telescope? Who is the hero of this story?

10. What has happened many times in the history of science in the post-Galilean years?

1) Complete these sentences with the key vocabulary words in the form required

a) breadth of application b) develop the concept c) ‘Art of the Soluble’ d) magnification e) the steam engine f) pattern g) scores of h) a novel idea i) simultaneous j) focal length k) purposeful development l) well under m) inevitability

1. With an instinct for what was later called the ……………, most biochemists confined themselves to more manageable topics.

2. Re-engineering has been embraced publicly by …………… companies, including AT&T, Texas Instruments, Ford, Citicorp, Aetna Life and IBM.

3. All other aspects of the training situation were radically altered in the shift from the …………… to the successive procedure.

4. The steady and …………… of pupils' language and of their skill in its use should be a constant aim of education at all stages and levels.

5. Britain's car manufacturers and oil companies now accept the …………… of lead-free petrol.

6. The group award should be designed to allow …………… and reflect the needs associated with problem solving and task management.

7. An examination of the historical …………… of change serves four main purposes.

8. With a …………… factor of eight and an objective lens diameter of thirty millimetres the binoculars are compact, lightweight and rugged, classic all-purpose glasses.

9. For a given visual angle, image size depends on …………….

10. This was the invention of ……………, originally devised for draining water from the tin mines, but then adapted by James Watt for driving factory machinery.

11. In the 1960s British Rail came up with …………… for a faster train.

12. This led to an especially sharp decline during the 1960s, from over half a million to …………… 300,000.

13. He hopes to …………… further.

2) Study ГОСТ 8.417-2002. ЕДИНИЦЫ ВЕЛИЧИН: http://nolik.ru/systems/gost.htm

How many physical units are named after great scientists?

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