Smog

Science / Biology / Smog: A local alteration in the atmosphere caused by human activity; mainly an urban problem that is often due to pollutants produced by fuel combustion.

Microseism

Science / Geology / Microseism: A weak vibration of the ground that can be detected by seismographs and which is caused by waves, wind, or human activity, but not by an earthquake. MORE

P-Wave

Science / Geology / P-Wave: Primary seismic waves. The fastest set of earthquake vibrations. They move through the Earth in compression and expansion motions (much like sound waves move through air). Called primary because they MORE

Blending

Business / Agriculture / Blending: In grain marketing, the combining of two different qualities of grain in order to change the total value of both lots. For example, it is common to blend grains of differing moisture or different fore MORE

Seismic Profile

Science / Geology / Seismic Profile: The data collected from a set of seismographs arranged in a straight line with an artificial seismic source, especially the times of P-wave arrivals. MORE

Primary Seismic Waves

Science / Geology / Primary Seismic Waves: The fastest set of earthquake vibrations - also known as P-waves. They move through the Earth in compression and expansion motions (much like sound waves move through air). Called primary because they MORE

Cosmobiology

Science / Astrology / Cosmobiology: An astrological system developed by Reinhold Ebertin (Germany, twentieth century) that emphasized midpoints and the following hard aspects: semi-square, square, sesquiquadrate and opposition. The angl MORE

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