Is it light or humidity?
What makes emerald green fade in famous paintings? Scientists at ESRF study how colours fade.
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What makes emerald green fade in famous paintings? Scientists at ESRF study how colours fade.
From a homemade thermometer to knitting needles that grow: here are some simple but fun experiments for primary-school pupils to investigate what happens to solids, liquids and gases when we heat them.
The brilliant yellows of van Gogh’s paintings are turning a nasty brown. Andrew Brown reveals how sophisticated X-ray techniques courtesy of the European Synchrotron Radiation Facility in Grenoble, France, can explain why.
Is it light or humidity?
The effect of heat: simple experiments with solids, liquids and gases
Van Gogh’s darkening legacy