The desire to stay cool is of course nothing new.<br />The ancient Egyptians and Romans employed various techniques to cool down their buildings from the outside heat.<br />Some people have even claimed that the first air-conditioning device was invented in ancient Egypt.<br />The ancient Egyptians would hang wet plants outside their windows.<br />And when the air came into the house, it would be cooled by the cool water drops on the plants.<br />The Romans understood that if they could bring cold water under their houses, then the temperature inside would fall.<br />And if we really stretch the meaning of the phrase air-conditioning, then hand fans have been used since the very beginning of the history.<br />People realized that they could move air by waving something, and it would cool them down for a while.<br />The Chinese inventor Ding Huan went a step further in the second century and invented a fan that could go around,<br />similar to the fans we might see today, although it was powered by servants.<br />That's all for today.<br />Please stay tuned for more updates.<br />The desire to stay cool is of course nothing new.<br />The ancient Egyptians and Romans employed various techniques to cool down their buildings from the outside heat.<br />Some people have even claimed that the first air-conditioning device was invented in ancient Egypt.<br />The ancient Egyptians would hang wet plants outside their windows.<br />And when the air came into the house, it would be cooled by the cool water drops on the plants.<br />The Romans understood that if they could bring cold water under their houses, then the temperature inside would fall.<br />And if we really stretch the meaning of the phrase air-conditioning, then hand fans have been used since the very beginning of the history.<br />People realized that they could move air by waving something, and it would cool them down for a while.<br />The Chinese inventor Ding Huan went a step further in the second century and invented a fan that could go around,<br />similar to the fans we might see today, although it was powered by servants.<br />That's all for today.<br />Please stay tuned for more updates.<br />Thank you for watching.
(1)
What is the speaker mainly talking about?
A . Cooling fans.B . Air conditioning.C . Room design.
(2)
Which country might have invented the first cooling device?
A . Egypt.B . Rome.C . China.
(3)
Which cooling method has the longest history?
A . Wet plants.B . Cold water.C . Hand fans.
(4)
Where is the passage most probably taken from?
A . A radio programme.B . A culture magazine.C . A history book.