flow in tension
71Dimensional analysis — In physics and all science, dimensional analysis is a tool to find or check relations among physical quantities by using their dimensions. The dimension of a physical quantity is the combination of the basic physical dimensions (usually mass,… …
72Fluid dynamics — Continuum mechanics …
73Vacuum tube — This article is about the electronic device. For experiments in an evacuated pipe, see free fall. For the transport system, see pneumatic tube. Modern vacuum tubes, mostly miniature style In electronics, a vacuum tube, electron tube (in North… …
74Convection — This figure shows a calculation for thermal convection in the Earth s mantle. Colors closer to red are hot areas and colors closer to blue are cold areas. A hot, less dense lower boundary layer sends plumes of hot material upwards, and likewise,… …
75Navier–Stokes equations — Continuum mechanics …
76petroleum production — Introduction recovery of crude oil and, often, associated natural gas from the Earth. petroleum is a naturally occurring hydrocarbon material that is believed to have formed in deep sedimentary (sedimentary rock) beds from animal and …
77Pneumothorax — Classification and external resources Right sided spontaneous pneumothorax (left in the image). An arrow indicating the edge of the collapsed lung. ICD 10 J …
78Hybrid zone — A hybrid zone exists where the ranges of two interbreeding species meet. For a hybrid zone to be stable, the offspring produced by the cross (the hybrids) have to be less fit than members of the parent species, although this condition does not… …
79Christian J. Lambertsen — Christian James Lambertsen Dr. Lambertsen, U.S. Army in 1942 Born May 15, 1917 …
80Stanley Salmons — (1939 ) was born in Clapton, East London, and was educated at St. Marylebone Grammar School. Awarded a Royal Scholarship, he attended Imperial College London, from which he graduated in Physics and went on to gain a D.I.C. in Electronics and… …
