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There are so many things around us that make life more convenient. What might life be like without them? We asked our readers what they thought were the most u ¡¾1¡¿inventions from the past. Here are their top four.
It all starts here. If you haven't got wheels, you can't go anywhere or get anything! We need them for every type of vehicle. They take us to p¡¾2¡¿we have never been to and bring things fast. They¡¯re used for operating many kinds of machines. Wheels were used as f¡¾3¡¿back as 3000 BC.
Imagine it¡¯s extremely cold or extremely hot. If you want some water, you've got to go to the well or a pump£¨³éË®»ú£©£® Or even worse£¬ your toilet is o¡¾4¡¿ the house. Before indoor plumbing, people had to do this. Try to think about all the times you turn on the water in your home every day. The ancient Greeks c¡¾5¡¿ it nearly 4,000 years ago. Unfortunately, there are still some countries where they haven't got it.
Until 1879, candles or oil lamps were used for lighting. But then Thomas Edison developed the bulb. Walk around your home and count how many light bulbs you see. They're e¡¾6¡¿-even inside your fridge!
You might use one of these to do your homework, organize your schedule or read a magazine. But computers are also used for running things that you use every day. There are
t¡¾7¡¿computers inside cars, microwave ovens, TV sets and DVD players. Charles Babbage invented the first computing machine in 1822 but it has changed a lot since then
These are the readers' top four. What do you think is the fifth?
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