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• Photosphere: In space and astronautical engineering, the photosphere is the visible surface of the sun that emits light and heat. It is the layer of the sun's atmosphere that we see from Earth. The photosphere has a temperature of around 5,500 degrees C ... Read More >>
• Mass Spectrometer: A mass spectrometer is an analytical instrument that measures the mass-to-charge ratio of ions. It works by ionizing chemical compounds to generate charged molecules or molecular fragments and then separating those ions based on their mass- ... Read More >>
• Chlorofluorocarbons: Chlorofluorocarbons (CFCs) are a group of organic compounds that contain carbon, chlorine, and fluorine. They were commonly used as refrigerants, solvents, and propellants in aerosol cans. However, CFCs have been found to be major contribut ... Read More >>