Sentence examples for absorptivity from inspiring English sources

In 1859 a physicist in Germany, Gustav Robert Kirchhoff, presented his law of radiation, relating emissive power to absorptivity.

This selective emissivity and absorptivity is important for understanding the greenhouse effect (see below The greenhouse effect of the atmosphere) and many other phenomena in nature.

In addition to the temperature and density gradients, the chemical composition of the atmospheric layers as well as the absorptivity, or opacity, of the material must be known.