weight ratio
61combination by weight — the action, process, or ratio by which substances unite (in compounds) in proportions by weight, relatively fixed and exact see law of definite proportions …
62shoot-root ratio — noun : the quotient of the dry weight of the shoots produced during a given growth period divided by the dry weight of the roots especially for crop plants …
63feed gain ratio — in aquaculture, the quantity of feed required to produce a given weight gain; the reciprocal of feed efficiency …
64Rocket engine — RS 68 being tested at NASA s Stennis Space Center. The nearly transparent exhaust is due to this engine s exhaust being mostly superheated steam (water vapor from its propellants, hydrogen and oxygen) …
65Rocket — This article is about vehicles powered by rocket engines. For other uses, see Rocket (disambiguation). A Soyuz U, at Baikonur Site 1/5 A rocket is a missile, spacecraft, aircraft or other vehicle which obtains thrust from a rocket engi …
66Single-stage-to-orbit — The VentureStar was a proposed SSTO spaceplane. A single stage to orbit (or SSTO) vehicle reaches orbit from the surface of a body without jettisoning hardware, expending only propellants and fluids. The term usually, but not exclusively, refers… …
67Jet engine — For a general overview of aircraft engines, see Aircraft engine. A Pratt Whitney F100 turbofan engine for the …
68CFM International CFM56 — CFM56 …
69Nuclear weapon yield — Logarithmic scatterplot comparing the yield (in kilotons) and weight (in kilograms) of all nuclear weapons developed by the United States. The explosive yield of a nuclear weapon is the amount of energy discharged when a nuclear weapon is… …
70airplane — /air playn /, n. 1. a heavier than air aircraft kept aloft by the upward thrust exerted by the passing air on its fixed wings and driven by propellers, jet propulsion, etc. 2. any similar heavier than air aircraft, as a glider or helicopter. Also …
