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The effect may also sometimes be known as a "leaping sundog" or "jumping sundog". As with sundogs, observation of the effect is dependent upon the observer's position – it is not a self-generated light such as seen in a lightning strike or aurora, but rather a changing reflection or refraction of the sunlight. Unlike sundogs, however (which ...
In economics and economic sociology, embeddedness refers to the degree to which economic activity is constrained by non-economic institutions. The term was created by economic historian Karl Polanyi as part of his substantivist approach. Polanyi argued that in non-market societies there are no pure economic institutions to which formal economic ...
Large woody debris, grains, and the shape of the bed of the stream are the three main providers of flow resistance, and are thus, a major influence on the shape of the stream channel. [1] Some stream channels have less LWD than they would naturally because of removal by watershed managers for flood control and aesthetic reasons. [2]
Optical lift is a component of force imparted from uniform light. First CP1 fabricated flying carpets. The ability of light to apply pressure to objects is known as radiation pressure, which was first postulated in 1619 and proven in 1900. This is the principle behind the solar sail, which uses light radiation pressure to move through space.
A stream flowing in a direction approximately opposite to that of the dip of the underlying surface rocks. It is frequently, though not necessarily, an obsequent stream. [4] anticline A geological upfold that has an arch-like convex shape and its oldest beds near its center, often visible at the Earth's surface in exposed rock strata. Contrast ...
Light beam, or beam of light, a directional projection of light energy Laser beam; Radio beam; Particle beam, a stream of charged or neutral particles Charged particle beam, a spatially localized group of electrically charged particles Cathode ray, or electron beam or e-beam, streams of electrons observed in discharge tubes
The Magellanic Stream is a stream of high-velocity clouds of gas extending from the Large and Small Magellanic Clouds over 100° through the Galactic south pole of the Milky Way. The stream contains a gaseous feature dubbed the leading arm. [1] The stream was sighted in 1965 and its relation to the Magellanic Clouds was established in 1974.
This theory came to dominate the conceptions of light in the eighteenth century, displacing the previously prominent vibration theories, where light was viewed as "pressure" of the medium between the source and the receiver, first championed by René Descartes, and later in a more refined form by Christiaan Huygens. [1]