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from article Airplane
Geometry of an airplane wing. Wind velocity component perpendicular to the wing span (V cos Λ, where V is the true wind velocity and Λ is the angle of sweepback) produces lift.
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from article Airplane
Illustration of the area rule. (a) Half-plan views of airplanes with uncompensated body and areacompensated body. (b) Cross sections of these airplanes. (c) Variation of cross-sectional areas of these airplanes with body station (longitudinal…
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from article Airplane
Variation of coefficient of lift with the angle of attack, showing increase up to the stall angle.
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from article Airplane
Aerodynamic control of an airplane. (a) Basic controls and control surfaces. (b) Effect of tilting the airplane in the direction of the wing lift L.
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from article Nuclear isomerism
Decays of isomers in (a) 77Kr and (b) 77Zn, showing the effects of energy and change of spin/parity on the lifetimes of the states. Numbers and “+” or “−” signs to the left of levels give their spins and parities, and numbers to the right of levels…
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from article Nuclear isomerism
Decays of shape isomers in (a) 74Kr and (b) 238U. Labeling of levels and gamma transitions is the same as in Fig. 1.
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from article Nuclear isomerism
Decay of the spin-gap 95mPd isomer. Labeling of levels and of the gamma transition from the isomeric (21/2+) level is the same as in Fig. 1.
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from article Ball-and-race-type pulverizer
Coarse raw material is ground by crushing and attrition between balls and races and is then withdrawn from the pulverizer by an airstream.
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from article Oil sand
Tar sand deposits in Alberta. 1 mi = 1.6 km.
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from article Superacid
