Space agencies examine the extent of greenhouse gases in the air via prisms and gratings in satellites. New technology now makes it possible to connect both components with each other so that they are ...

This application note presents the basics of optical spectroscopy. It describes the prism and light separation, the prism-based spectroscope, the reflection grating-based spectroscope and the use of ...

In addition to industrial CO 2 emissions, agriculture also contributes significantly to climate change: above all methane (CH 4) and nitrous oxide (N 2 O), which are released in large quantities due ...

COMPOUND PRISM OF UNIFORM DISPERSION.—Messrs. C. G. Abbot and F. E. Fowle, of the Astrophysical Observatory at the Smithsonian Institution, have been investigating the possibility of obtaining a ...