of propellants and explosives; properties normally determined are heat of combustion, heat of explosion, heat of formation, and heat of reaction. { ks^or-sme-trik 'test} calorimetry [eng] The measurement of the quantity of heat involved in various processes, such as chemical reactions, changes of state, and formations of solutions, or in the determination of the heat capacities of substances; fundamental unit of measurement is the joule or the calorie (4.184 joules). { kal-s'rim-s-tre } calyx [eng] A steel tube that is a guide rod and is also used to catch cuttings from a drill rod. Also known as bucket; sludge barrel; sludge bucket. { 'kai.liks } calyx drill [eng] A rotary core drill with hardened steel shot for cutting rock. Also known as shot drill. { 'kai.liks .dril } cam [mech eng] Aplate or cylinder which communicates motion to a follower by means of its edge or a groove cut in its surface. { kam } cam acceleration [mech eng] The acceleration of the cam follower. { 'kam ak-sel-s'ra-shsn } camber [des eng] Deviation from a straight line; the term is applied to a convex, edgewise sweep or curve, or to the increase in diameter at the center of rolled materials. { 'kam-bsr } camber angle [mech eng] The inclination from the vertical of the steerable wheels of an automobile. { 'kam-bsr .ag-gsl} cam cutter [mecheng] Asemiautomaticorau-tomatic machine that produces the cam contour by swinging the work as it revolves; uses a master cam in contact with a roller. {'kam .ksd-sr} cam dwell [deseng] That part of a cam surface between the opening and closing acceleration sections. { 'kam .dwel } cam engine [mech eng] A piston engine in which a cam-and-roller mechanism seems to convert reciprocating motion into rotary motion. { 'kam .en-jsn } camera study See memomotion study. {'kam-rs . stsd-ei }

cam follower [mech eng] The output link of a cam mechanism. {'kam .fal-s-wsr} cam mechanism [mech eng] A mechanical linkage whose purpose is to produce, by means of a contoured cam surface, a prescribed motion of the output link. { 'kam .mek-s.niz-sm } cam nose [mech eng] The high point of a cam, which in a reciprocating engine holds valves open or closed. { 'kam .noz } cam pawl [mech eng] A pawl which prevents a wheel from turning in one direction by a wedging action, while permitting it to rotate in the other direction. { 'kam .pol} Campbell-Stokes recorder [eng] A sunshine recorder in which the time scale is supplied by the motion of the sun and which has a spherical lens that burns an image of the sun upon a specially prepared card. { ¡kam-sl ¡stoiks ri 'kord-sr}

camp ceiling [build] Aceiling that is flat in the center portion and sloping at the sides. { 'kamp .se- lig }

cam profile [des eng] The shape of the contoured cam surface by means of which motion is communicated to the follower. Also known as pitch line. { 'kam .pro.fil} camshaft [mech eng] A rotating shaft to which a cam is attached. { 'kam.shaft } can [deseng] Acylindricalmetalvesselorcon-tainer, usually with an open top or a removable cover. { kan } canal [civ eng] An artificial open waterway used for transportation, waterpower, or irrigation. [deseng] A groove on the underside of a corona. { ks'nal } canalization [eng] Any system of distribution canals or conduits for water, gas, electricity, or steam. { .kan-sl-s'za-shsn } cancellation circuit [electr] A circuit used in providing moving-target indication on a plan position indicator scope; cancels constant-amplitude fixed-target pulses by subtraction of successive pulse trains. { kan-ss'lai-shsn .ssr-kst}

canister See charcoal canister. {'kan-s'stsr} canned motor [mech eng] A motor enclosed within a casing along with the driven element (that is, a pump) so that the motor bearings are lubricated by the same liquid that is being pumped. {¡kand 'mod-sr} canned pump [mech eng] A watertight pump that can operate under water. { ¡kand 'psmp } cannibalize [eng] To remove parts from one piece of equipment and use them to replace like, defective parts in a similar piece of equipment in order to keep the latter operational. { 'kan-s-bs.lTz }

canonical equations of motion See Hamilton's equations of motion. {ks'nan-s-ksl i'kwa-zhsnz sv 'mo-shsn } canonical form [cont sys] A specific type of dynamical system representation in which the associated matrices possess specific row-column structures. { ks'nan-s-ksl .form } canonically conjugate variables [ mech ] A generalized coordinate and its conjugate momentum. { ks'nan-s-kle ¡kan-js-gst 'ver-e-s-bslz } canonical momentum See conjugate momentum.

{ ks'nan-s-ksl ms'ment-sm } canonical transformation [mech] A transformation which occurs among the coordinates and momenta describing the state of a classical dynamical system and which leaves the form of Hamilton's equations of motion unchanged. Also known as contact transformation. { ks'nan-s-ksl .tranz-fsr'ma-shsn } cant file [des eng] A fine-tapered file with a triangular cross section, used for sharpening saw teeth. { 'kant .fTl } cant hook [des eng] A lever with a hooklike attachment at one end, used in lumbering. { 'kant .huk} cantilever [eng] 1. Abeam or member securely fixed at one end and hanging free at the other end. 2. In particular, in an atomic force microscope a very small beam that has a tip attached to its free end; the deflection of the beam is used

Solar Stirling Engine Basics Explained

Solar Stirling Engine Basics Explained

The solar Stirling engine is progressively becoming a viable alternative to solar panels for its higher efficiency. Stirling engines might be the best way to harvest the power provided by the sun. This is an easy-to-understand explanation of how Stirling engines work, the different types, and why they are more efficient than steam engines.

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