2,871,745
Similar topics in Freebase
-
Telephone
The telephone (from the Greek: τῆλε, tēle, "far" and φωνή, phōnē, "voice"), colloquially referred to as a phone, is a telecommunications device that transmits and receives sounds, usually the human voice. Telephones are a point-to-point communication system whose most basic function is to allow two... -
Stencil duplicator
The stencil duplicator or mimeograph machine (often abbreviated to mimeo) is a low-cost printing press that works by forcing ink through a stencil onto paper. The mimeograph process should not be confused with the spirit duplicator process. Mimeographs, along with spirit duplicators and hectographs... -
Incandescent light bulb
The incandescent light bulb, incandescent lamp or incandescent light globe produces light by heating a filament wire to a high temperature until it glows. The hot filament is protected from oxidation in the air with a glass enclosure that is filled with inert gas or evacuated. In a halogen lamp,... -
Mouse
A computer input device that senses the two-dimensional displacemnt of a controlling hand. -
Gore-Tex
Gore-Tex is a waterproof/breathable fabric, and a registered trademark of W. L. Gore and Associates. It was co-invented by Wilbert L. Gore, Rowena Taylor, and Gore's son, Robert W. Gore. Robert Gore was granted U.S. Patent 3,953,566 on April 27, 1976, for a porous form of polytetrafluoroethylene ... -
Magnetometer
A magnetometer is a measuring instrument used to measure the strength or direction of magnetic fields. Some countries, such as the USA, Canada and Australia classify the more sensitive magnetometers as military technology, and control their distribution. The SI unit of measure for magnetic field... -
Multidimensional digital waveguide signal synthesis system and method
The Digital Waveguide Mesh extends Karplus-Strong models of strings and Digital Waveguide models of strings and acoustic tubes into the multi-dimensional cases by creating a scattering mesh. The design comprises bidirectional delay lines and "scattering junctions" to model wave propagation in 2-... -
Multidimensional digital waveguide signal synthesis system and method (tetrahedral extension)
This variation on the Digital Waveguide Mesh design comprises bidirectional unit delays and 4-way no-multiply junction computations to model wave propagation in 3D space or homogenous solids. It is based on an equivalence under certain conditions of modeling of transmission line scattering as... -
Sound Reproduction System
Snow, William B. (1903-1968) American engineer best remembered for his foundation work for stereophonic reproduction in large rooms. See U.S. Patent 2,137,032 Sound Reproducing System. -
Phenidone
Phenidone (1-phenyl-3-pyrazolidinone) is an organic chemical compound whose primary use is as a photographic developer. It has five to ten times the developing power as Metol. It also has low toxicity and, unlike some other developers, does not cause dermatitis upon skin contact. Phenidone is...
