Joined: 03/06/2017 09:46:10
For more than a century, the world's fair has drawn millions from around the globe to showcase international achievement and technological innovation.
Countries have hosted the fair around the world ever since 32 countries first convened in London, England for the Great Exhibition of 1851. The months-long event, which in 1967 began using "expo" rather than "fair," will take place this year in Astana, Kazakhstan. The theme of Expo 2017, which begins on June 10, is "future energy" and comes on the heels of President Donald Trump's announcement to withdraw the U.S. out of the Paris climate accord.
The world's fair takes on a different life each year, but each event typically looks to the future with larger-than-life prototypes and dioramas.
But for every hit – like the Ferris wheel or waffles – there has been a failure, or, in many cases, ideas that never came to full fruition.
Here's a look at some of the inventions from world's fairs past that could have changed everyday life:
1. Computerized Highway
3. Disappearing Appliances
4. An Underwater Hotel
5. An Electric City
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