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Podium. An orchestra conductor stands on a podium so he can both see and be seen by the musicians. A podium ( pl.: podiums or podia) is a platform used to raise something to a short distance above its surroundings. In architecture a building can rest on a large podium. [ 1] Podiums can also be used to raise people, for instance the conductor of ...
Poynting vector in a static field, where E is the electric field, H the magnetic field, and S the Poynting vector. The consideration of the Poynting vector in static fields shows the relativistic nature of the Maxwell equations and allows a better understanding of the magnetic component of the Lorentz force, q(v × B).
A Bloch wave function (bottom) can be broken up into the product of a periodic function (top) and a plane-wave (center). The left side and right side represent the same Bloch state broken up in two different ways, involving the wave vector k 1 (left) or k 2 (right). The difference (k 1 − k 2) is a reciprocal lattice vector. In all plots, blue ...
A canal built to connect the Tennessee and Tombigbee rivers in northern Alabama could allow invasive Asian carp to reach the Mobile River system and the delta, potentially devastating native fish.
They have relaxed body language. “Happy dogs should have very loose body language,” Anderson said. “They shouldn’t have any tension. Their ears shouldn’t be pulled back. You shouldn’t ...
Tropical Storm Debby has moved menacingly into some of America’s most historic Southern cities, bringing prolonged downpours and flooding Tuesday after slamming into Florida and prompting the ...
The fundamental diagram of traffic flow is a diagram that gives a relation between road traffic flux (vehicles/hour) and the traffic density (vehicles/km). A macroscopic traffic model involving traffic flux, traffic density and velocity forms the basis of the fundamental diagram. It can be used to predict the capability of a road system, or its ...
President Joe Biden on Friday signed a proclamation establishing the Springfield 1908 Race Riot Monument, located on the site of a deadly attack on a Black community by a white mob 116 years ago.