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(A) Silver oxide film exposed to DC current; (B) activated regions emitting light when conected to AC current; (C) zoom shows single molecule electroluminescence
Single Molecule Electroluminescence

Incandescence and luminescence are two main ways of producing light. In incandescence, electric current is passed through a conductor (filament of a light bulb for example). The resistance to the cur ...
On the first day of the Mapping Phase of the Mars Global Surveyor mission, MOC was greeted with this view of
Two Face? Absolutely!

During the Viking missions to Mars in the mid 1970s, the planet was imaged from orbit by the Viking 1 and 2 Orbiters. These spacecraft returned images of regions of the planet that, while similar to g ...

When Do We Encounter Ionizing Radiation In Our Daily Lives?

Everyone who lives on this planet is constantly exposed to naturally occurring ionizing radiation (background radiation). This has been true since the dawn of time. The average effective dose equivale ...

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