Piezofluorochromism, the phenomenon of materials reversibly changing their fluorescent color when pressure is applied, is ...
Philadelphia sued the Trump administration after it directed the Park Service to rip out a memorial to slavery. Elsewhere, materials about climate change and labor history were being removed. By ...
A heatmap is a graphical representation of data using colors that represent different values. It's often used to demonstrate user behavior on a particular web page.
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