counter-current flow
51Dimensionless quantity — In dimensional analysis, a dimensionless quantity or quantity of dimension one is a quantity without an associated physical dimension. It is thus a pure number, and as such always has a dimension of 1.[1] Dimensionless quantities are widely used… …
52Ericsson cycle — The Ericsson Cycle is named after inventor John Ericsson, who designed and built many unique heat engines based on various thermodynamic cycles. He is credited with inventing two unique heat engine cycles and developing practical engines based on …
53Flash memory — Computer memory types Volatile RAM DRAM (e.g., DDR SDRAM) SRAM In development T RAM Z RAM TTRAM Historical Delay line memory Selectron tube Williams tube Non volatile …
54biosphere — biospheric /buy euh sfer ik/, adj. /buy euh sfear /, n. 1. the part of the earth s crust, waters, and atmosphere that supports life. 2. the ecosystem comprising the entire earth and the living organisms that inhabit it. [1895 1900; < G Biosphäre; …
55Electric motor — For other kinds of motors, see motor (disambiguation). For a railroad electric engine, see electric locomotive. Various electric motors. A 9 volt PP3 transistor battery is in the center foreground for size comparison. An electric motor converts… …
56Gaseous ionization detectors — In particle physics, gaseous ionization detectors are detectors designed to seek the presence of particles (a particle detector). If a particle has enough energy to ionize a gas, the resulting electrons emitted can cause a current flow which can… …
57FAKTOROVICH — RUSSIA (see also List of Individuals) 17.4.1912 Zapadnaya Dvina/RU 11.9.1971 Leningrad/RU Miron Emmanuilovich Faktorovich was born in the Kalininskaya region and was from 1936 a hydraulic engineer at VNIIG once having graduated as a civil… …
58Diesel locomotive — Three styles of diesel locomotive body: cab unit, hood unit and box cab. These locomotives are operated by Pacific National in Australia …
59Great Pacific Garbage Patch — Garbage Island redirects here. For the episode of How I Met Your Mother, see Garbage Island (How I Met Your Mother). The Garbage Patch is located within the North Pacific Gyre, one of the five major oceanic gyres. The Great Pacific Garbage Patch …
60Galvanic corrosion — This new manifold for water meters has replaced the old one after 4 years of use, having been connected directly to a copper pipe in the building (0.85 V of potential difference, see the point of corrosion in the bottom left). With a PVC battery… …
