Iron compound and synthetic pigment | Chemistry: A Volatile History
A demonstration of how Diesbach stumbled across the ingredients for the first synthetic paint.
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Psychologist Kimberley Wilson and Dr Xand van Tulleken take a journey through the body's immune system and profile a remarkable white blood cell.
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A circulatory path | Heart vs Mind: What makes us human
In the 17th century, Harvey discovered that blood flows in a circulatory path.