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Measuring NOx in combustion

Envirotec Magazine

NOx gases are mostly produced by the combustion of hydrocarbons in vehicles and engines, as well as industrial processes such as power generation and cement manufacture. NO2 is generated by industrial processes including cement manufacture. Chemiluminescent photon detector.

Ozone 130
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The Overview Effect

Grist

Once a photograph of the Earth, taken from the outside, is available,” Fred Hoyle, an English astronomer, wrote in 1948, “a new idea as powerful as any in history will be let loose.” One was the Stewart Brand, the founder of the Whole Earth Catalog, an influential counterculture magazine. NASA / Bill Ingalls.