Online educational resource on achieving indoor environmental quality with radiant based HVAC systems
Not for profit educational resource on indoor environmental quality.
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Hydrogen Atom Simulator (NAAP)
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This simulator models a hydrogen atom and its interactions with light, demonstrating the quantum nature of absorption and emission. Slide the wavelength (light) bar (located at the bottom of the simulator) and fire off a photon and see what happens. Keep playing with the slider until you find the wave length where the hydrogen atom absorbs and emits the photon. Note: radiant heating and cooling systems operate in the long wave range between 3.0μm to 30μm in the far infrared region. This simulation is part of the Coordinates and Motions module of the ClassAction project, a collection of think-pair-share questions and resources for astronomy education. Learn more about energy photons.

Source Credit: The NAAP Basic Coordinates and Seasons Lab, used with permission.

Learn more about radiant, light and other forms of heat transfer:
Human thermal plume
Conduction animation
Radiant animation
Convection animation
Mean radiant temperature

Emissivity, absorptivity and reflectivity
Seasons Simulator (NAAP)
Blackbody Curves & UBV Filters (NAAP)
Sun's Rays Simulator (NAAP)
Blackbody Curves of Melting (NAAP)
Sun Motions Demonstrator (NAAP)
Azimuth/Altitude Demonstrator (NAAP)

Hydrogen Atom Simulator
Infrared: Beyond the Visible (NASA)


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