compound balloon
A variation of the hot-air balloon that is lifted by two separate balloons of different types, usually suspended one over the other.
768 entries.
A variation of the hot-air balloon that is lifted by two separate balloons of different types, usually suspended one over the other.
A three-dimensional shape into which a thin flat sheet of material, e.g. metal, can be formed by operations that must include stretching or compression, in addition to bending.
The cycle of an internal combustion engine during which the fuel and air mixture is compressed.
The ratio of the volume between the cylinder head of an internal combustion engine and the piston before and after the compression stroke.
An elasticated sock worn to help prevent the occurrence of venous disorders such as edema, phlebitis, and thrombosis.
A device that reduces the dynamic range of an audio signal.
The study of computational algorithms to solve mathematical problems in the field of fluid dynamics.
The conceptual structure around which a given computer is designed.
An integrated circuit, typically installed in a personal computer or other electronic devices.
Any type of timing in a vehicle, machine, or other experiment aided by an internal timer.
An element of a curved grid used to separate desirable material from tailings or chaff in mining and harvesting.
Having one side concave and the other convex.
An apparatus for the separation of dry comminuted ore, by exposing it to intermittent puffs of air.
An automobile which is not available for retail sale and which is usually only a mock-up having limited functionality, but which may be displayed at auto shows to represent design ideas under consideration for future vehicles.
The person who prepares the materials to be made into glass, and/or works and tempers them.
A rectangular concrete block of a standard size used in construction.
A rounded mass of a mineral, sometimes found in sedimentary rock or on the ocean floor.
A stretch of road that is shared between two or more numbered or named routes.
A lens (or combination of lenses) designed to gather light and focus it onto a specimen or part of a mechanism.
The total amount of time required for a sample to attain equilibrium at the specified condition.
Interference resulting from noise or unwanted signals entering a device by conductive coupling, i.e., by direct coupling.
A method of designing optical systems in which the conformation of the lenses is chosen to optimize its interaction with the local environment
A farmer whose lands do not support him adequately.
An electron donor and its corresponding electron acceptor form.
The amount of time that a circuit is in use, usually in a circuit-switched environment.
To join to a network or supply.
A transfer from one transportation vehicle to another in scheduled transportation service.
The ability to make a connection between two or more points in a network.
A device (or, more precisely, a mating pair of devices, often a plug and a socket) for connecting together two wires, cables, or hoses, allowing electricity or fluid to flow but also allowing easy disconnection and reconnection when necessary.
Relating to, or produced by conoscopy
Abbreviation of connecting rod.
Conventional, traditional, and moderate in style and appearance; not extreme, excessive, faddish, or intense.
A lineup or sequence of railroad carriages or cars, with or without a locomotive, that form a unit.
A storage tray or container mounted between the seats of an automobile.
a business which groups different orders into one shipment.
A fleet of satellites used for the same purpose.
A measure of a material's dispersion (variation of refractive index with wavelength) in relation to the refractive index.
A combination of items that is used as the basis for computing costs and materials needs. A complete construction can consist of multiple construction units, each of which is a copy of the others.
When two or more waves overlap, and their crests or troughs align, adding together to create a single, larger wave with a greater amplitude (intensity and height) than the original waves.
The plane between two adjacent bodies of dissimilar rock.
A current collector on an electric train which is in contact with the live rail.
A bare wire conducting electricity, often the lower part of the catenary, which comes into contact with a raised pantograph or other form of current collector.
A relay used to control an electrical power circuit
A very large, typically metal, box used for transporting goods.
a flat wagon designed to carry international shipping containers.
A plant that grows in a pot or other container, instead of in the ground.
A port which specialises in handling the loading and unloading of shipping containers onto and from container ships.
a flat wagon designed to carry international shipping containers.
A linear area which has been cleared of inflammable material in order to prevent a fire from spreading across it.
Competition by parts of a system or its users for a limited resource.
A system allowing for the perpetual adjustment of valve timing in an engine in order to optimize it for all engine speeds and conditions.
Any of several forms of automatic transmission, without specific gears, in which the gear ratio may be changed without any noticeable steps.
A branch of mechanics that deals with the deformation of and transmission of forces through materials modeled as a continuous medium rather than as discrete particles.
Having a continuous range of tones from white to black, rather than an approximation such as stippling.
The party to a construction contract who is not the contractor; frequently the owner.
Of message signals, passing in opposite directions at the same time.
A nearly flat and roughly triangular suspension member that pivots in two places.
A part of the system bus that is used by CPUs for communicating with other devices within the computer.
A non-powered railroad car, equipped with a driver's cabin, front lights and other equipment required for a locomotive, allowing a train to be controlled from the rear end without turning a locomotive at the end of the line.
A groove which is formed, sawn, or tooled in a concrete or masonry structure to regulate the location and amount of cracking and separation resulting from the dimensional change of different parts of the structure, thereby avoiding the development of high stresses.