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Buses didn't use to have an engine. Horses used to pull  buses in the city!

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in the past people didn't use to have electric trains. They used to have trains that burned coal.

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In the past people didn't use to have cars. They had carriages pulled by horses

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In the past people didn't use to have motorboats. They used to have sailing ships.

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In the past people didn't use to have planes with turbines or cabin. They used to have hot air balloons

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In the past, stage-coaches used to need three days for a trip that today, with a bus lasts three hours!

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In the past they didn't use to have cars and motos,
They used to have carriages which they pulled by horses.

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In the past,
bicycles were very strange.people used to have bicycles with very big tires.

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ELENA PSAROGIANNI
Bikes used to take advantage of people's legs and their power . In the past bikes didn't use to be iron but wooden. Also, they didn't use to have pedals. People used to walk , but on the bikes!!!!
Now bikes are very different, and some of them are electrically!!!!!!!!

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In the past people didn't use to have many transport means. But the best transport in the past  was trains. The trains transported big things and animals but took many days from one city to another. Nowadays people have trains to transport people and things in very short time

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In the past, people didn't used to have cars. Τheir transport was difficult so they decide to make something for easier transporting. First they made carriages and then cars.

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Lefteris
In the past cars used to work with steam.

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In the past, bikes used to be wooden and  without pedals. An interesting fact is that people used to walk on the bikes. Now bikes are made of iron and they have pedals

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The first flight using rockets with fuel lasted for only 2.5 sconds and the rocket climbed only 12.5 metres and landed 56 metres away. The picture shows what the first rocket looked like.

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Cars used to burn fuel that water in a boiler. This process  made steam that expanded and pushed pistons, which  turned a crankshaft. An electric car has a battery that  powers a small electric motor, which turns a driveshaft.