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Quiz: Life 350 years ago (When your great-great-great-great-great-great-great-great-grandparents were alive.) Robert Boyle could not have imagined most of the things we now use every day, but there were many new inventions in the 17th century. From the list below, can you pick out the kinds of technology that were used 350 years ago? 3or 2 Astronomers used telescopes to observe stars and planets. People watched black and white television. People put stamps on their letters. You could travel in a submarine. Aeroplanes could take you short distances. You could have a blood transfusion. Children played with rubber balloons. You could use a calculator. Scientists studied bacteria under microscopes. People wore watches.