Colour - The Spectrum of Science episode 1: Helen Czerski uncovers what colour is, how it works and how it has written the story of our planet. She seeks out the colours that turned the Earth multicoloured.
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https://hdclump.com/the-story-of-science-episode-2-what-is-the-world-made-of/
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https://hdclump.com/the-story-of-electricity-episode-2-the-age-of-invention/
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