For decades, the ability to visualize the chemical composition of materials, whether for diagnosing a disease, assessing food ...

“Iris Green,” a pigment extracted from the petals of blue iris flowers, was popular in the medieval era as an alternative to ...

Infrared saunas have become incredibly popular, even though they aren’t really saunas at all. To the untrained eye, they basically look the same as what you’d expect a sauna to look like—wood paneling ...