Episode
1974 - NOVA
S09E08 Palace of Delights
NOVA visits San Francisco's Exploratorium—part laboratory, part school, part three-ring circus—run by an unlikely collection of physicists and high school students.
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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