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Photoelectric effect
The photoelectric effect is the emission of electrons from matter upon the absorption of electromagnetic radiation, such as ultraviolet radiation or x-rays. Upon exposing a metallic surface to ... > more -
Energy and the Environment
Solar Energy
Renewable Energy
Geomagnetic Storms
Environmental Science
Sustainability
Solar panel
Solar panels are devices for capturing the energy in sunlight. The term solar panel can be applied to either solar hot water panels (usually used for providing domestic hot water) or solar ... > more -
Richter magnitude scale
The Richter magnitude test scale (or more correctly local magnitude ML scale) assigns a single number to quantify the size of an earthquake. It is a base-10 logarithmic scale obtained by calculating ... > more -
Surface tension
Surface tension is an effect within the surface layer of a liquid that causes the layer to behave as an elastic sheet. It is the effect that allows insects (such as the water strider) to walk on ... > more -
Technology
Technology is a broad term dealing with the use and knowledge of humanity's tools and crafts. For scientists and engineers, technologies are: conceptual tools - as methods, methodologies, techniques; ... > more -
Seismometer
Seismometer are used by seismologists to measure and record seismic waves. By studying seismic waves, geologists can map the interior of the Earth, and measure and locate earthquakes and other ground ... > more
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