reaction vessel
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reaction, heat of — Amount of heat that must be added or removed during a chemical reaction to keep all substances involved at the same temperature. If it is positive (heat must be added), the reaction is endothermic; if it is negative (heat is given off), the… … Universalium
Reaction calorimeter — A reaction calorimeter is an instrument that enables the energy being released or absorbed by a reaction to be measured. The majority of events taking place within a reactor release or absorb energy, so if that can be measured it allows a view of … Wikipedia
Reaction ferry — The Lytton Ferry across the Fraser River in British Columbia is a reaction ferry using an overhead cable and traveller, visible in the upper right corner … Wikipedia
reaction wheel — Water wheel Wa ter wheel 1. Any wheel for propelling machinery or for other purposes, that is made to rotate by the direct action of water; called an {overshot wheel} when the water is applied at the top, an {undershot wheel} when at the bottom,… … The Collaborative International Dictionary of English
reaction — 1. The response of a muscle or other living tissue or organism to a stimulus. 2. The color change effected in litmus and certain other organic pigments by contact with substances such as acids or alkalies; also the property that such substances… … Medical dictionary
Grignard reaction — The Grignard reaction, named for the French chemist François Auguste Victor Grignard, is an organometallic chemical reaction in which alkyl or aryl magnesium halides (Grignard reagents), which act as nucleophiles, attack electrophilic carbon… … Wikipedia
Serenity (Firefly vessel) — Infobox Fictional Spacecraft name = Serenity colour =Television colour|Firefly caption = Serenity in orbit first = The Train Job [This is by air date. In the intended series order (as well as the DVD presentation order) the first appearance would … Wikipedia
chain reaction — 1. Physics. a self sustaining reaction in which the fission of nuclei of one generation of nuclei produces particles that cause the fission of at least an equal number of nuclei of the succeeding generation. 2. Chem. a reaction that results in a… … Universalium
Steam vessel — Steam Steam (st[=e]m), n. [OE. stem, steem, vapor, flame, AS. ste[ a]m vapor, smoke, odor; akin to D. stoom steam, perhaps originally, a pillar, or something rising like a pillar; cf. Gr. sty ein to erect, sty^los a pillar, and E. stand.] 1. The… … The Collaborative International Dictionary of English
Carrier vessel — Porte avions de l US Navy Imaginez l Empire State Building de New York, couché sur le côté, traversant l océan à 30 nœuds, avec une grosse vague d étrave blanche précédant sa tour radio. Cela vous donnera une petite idée de ce que représente un… … Wikipédia en Français
