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PBS Presents | Promotion | Think Wednesday | May 1, 2019 Preview

Learn how climate change can affect nature's perfectly synchronized partnerships with a new episode of NATURE. On this episode of NOVA, learn how medieval builders raised Gothic cathedrals to such spectacular heights. When Breakthrough: The Ideas That Changed the World continues, check out the history of robots and learn how they are fast becoming a part of everyday life.

0:00:30 | AIRED: 5/1/2019 |
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