Key dates in science.
1808 The English chemist John Dalton published A new system of Chemical Philosophy containing his theories of atomic structure.
1810The first electric lamp was discovered in London, England.
1821Michael Faraday, an English scientist, invented an electric motor.
1831Michael Faraday invented the dynamo.
1833 English mathematicians Charles Babbage and Ada Lovelace worked on the Analytical Engine, a forerunner (попередник) of the computer.
LESSON 10.
Grammar.Модальні дієслова
Text 10A.Made in Space
Text 10B.Ancient Steel-making Secret
Topic.Ukraine’s Economy
Форми модальних дієслів
Present
| Past
| Future
| can
may
must
| could
might
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