Episode
1974 - NOVA
S51E17 Building Stuff: Change It!
Thousands of years of human innovation have allowed us to shape the environment to improve lives. The consequences of our activities are not always benign – but there are solutions. From electrifying aviation, to building robots to protect threatened coral reefs, a new generation of engineers is finding creative solutions to some of our most critical environmental challenges.
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ក្រដាសផ្សព្វផ្សាយ
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Backdrops
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តំណដែលគួរឲ្យចាប់អារម្មណ៍
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អត្ថបទរឿង
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ថ្រេល័រ
