[BONUS: REPLAY] The Rise of Air Conditioning

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It has gone from luxury to necessity, and there are over 2
billion air conditioning units in the world today.


In this episode, we'll take a look at how air conditioning got
started, why people didn't mind being hot in the past, and what
the true cost of staying cool might be for future generations.





Staying cool is nothing new: Romans & Egyptian methods

Ding Huan & the rotating fan

Why people were afraid of creating cold artificially

How the Dutch magician Cornelis Drebbel tricked King James I
in 1620

Benjamin Franklin getting sweaty one July in Philadelphia

Primitive air conditioning by pumping air over ice

Did people actually mind that there was no air conditioning?

Willis H. Carrier & the first air conditioning unit

Convincing the US public that it was something they needed

1920s sweaty American cinemas

Spending $600,000 on an air conditioning unit in 1932

The boom of air conditioning in the US

How many households around the world have air conditioning in
2021?

The impact of air conditioning: the good, the bad & the
unexpected

Environmental impact of air conditioning

Future of air conditioning in the developing world

New air conditioning technologies: high & low tech 



Full interactive transcript, subtitles and key vocabulary
available on the website:
https://www.leonardoenglish.com/podcasts/air-conditioning


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