Inventions and discoveries
Тест виконано: 580 разів
12 запитань
Запитання 1
When was the first accurate clock designed?
Запитання 2
When were shadow clocks first used?
Запитання 3
When were mechanical clocks made?
Запитання 4
What kind of clocks were used in ancient Egypt?
Запитання 5
When were sand glasses used?
Запитання 6
Where were the first wristwatches made?
Запитання 7
When was the telephone invented?
Запитання 8
Where was Alexander Bell born?
Запитання 9
What kind of job was Alexander Bell given when he got to America?
Запитання 10
Who was his work financed by?
Запитання 11
What were the first words spoken over the telephone?
Запитання 12
When was the first communication satellite launched?
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