Peaking power plantPeaking power plants, also known as peaker plants, and occasionally just "peakers", are power plants that generally run only when there is a high demand, known as peak demand, for electricity. Because they supply power only occasionally, the power supplied commands a much higher price per kilowatt hour than base load power. Peak load power plants are dispatched in combination with base load power plants, which supply a dependable and consistent amount of electricity, to meet the minimum demand.
High dynamic rangeHigh dynamic range (HDR) is a dynamic range higher than usual, synonyms are wide dynamic range, extended dynamic range, expanded dynamic range. The term is often used in discussing the dynamic range of various signals such as s, videos, audio or radio. It may apply to the means of recording, processing, and reproducing such signals including analog and digitized signals. The term is also the name of some of the technologies or techniques allowing to achieve high dynamic range images, videos, or audio.
Projet Orionthumb|upright=1.4|Vue d'artiste d'un vaisseau Orion selon les principes de conception de la NASA. Le Projet Orion fut la première étude de conception d'un véhicule spatial mû par propulsion nucléaire pulsée, idée proposée par Stanislaw Ulam en 1947. Le projet, amorcé dans les années 1950, était mené par une équipe d'ingénieurs et de physiciens de General Atomics, comprenant quelques célébrités telles que le physicien Theodore Taylor. Sur la demande de Taylor, le physicien Freeman Dyson quitta pendant une année ses travaux universitaires pour diriger le projet.
