Skyscrapers

Inquiry Unit

Skyscrapers

The symbol of growth in China and India of the early 21st century is the proliferation of skyscrapers. This was also the symbol of urbanization in the early 20th century U.S. How did this come about? …

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Electric Lighting

Inquiry Unit

Electric Lighting

When was the last time you lived without electric lights? Maybe a thunderstorm, hurricane, or blizzard caused a power outage in your neighborhood. Maybe you live in a village without electric lights. …

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