Archive for the 'M-Machine Influence' Category

Jan-6th-2009

Myria

A prefix; one million times. Thus myriavolt means one million volts. [Transcriber's note: Contemporary usage is mega, as in megavolt.]

Jan-6th-2009

Muscular Pile

A species of voltaic battery, often termed Matteueci’s pile, made up of alternate pieces of muscle cut longitudinally and transversely respectively. The different pieces represent the elements of a battery, and their difference of potential is naturally possessed by the pieces.

Jan-6th-2009

Multiplying Power of a Shunt

When a resistance is placed in parallel with a galvanometer on a circuit the following relation obtains. Let s and g equal the resistances of the shunt and galvanometer respectively, S and G the currents in amperes passing through them, V the potential difference between their common terminals, and A the whole current in amperes. [...]

Jan-6th-2009

Multiplex Telegraphy

Any system of telegraphy transmitting more than four messages simultaneously over a single wire. Properly it should apply to all transmitting more than one, but conventionally has the above restricted meaning, distinguishing it from duplex and quadruplex telegraphy.

Jan-6th-2009

Multiple Wire Method for Working Electro-magnets

A method for suppressing sparking in working electro-magnets intermittently. The magnet core is wound with a number (from four to twenty) of separate layers of fine wire. A separate wire is taken for each layer and all are wound in the same direction, from one end to the other of the space or bobbin without [...]

Jan-6th-2009

Multiple Switch Board

A switch board on whose face connecting spring jacks or other devices are repeated for the same circuits, so that different operators have each the entire set of connections repeated on the section of the board immediately in front of and within their reach. This multiplication of the same set of connections, giving one complete [...]

Jan-6th-2009

Multiple Series

Arrangements of electric apparatus in a circuit in a number of series, which minor series are then arranged in parallel. The term may be used as a noun, as “arranged in multiple-series,” or as an adjective, as “a multiple-series circuit.”

Jan-6th-2009

Multiple Arc Box

A resistance box arranged so that the coils may be plugged in multiple instead of in series. Such can be used as a rheostat, as the resistance can be very gradually changed by putting the coils one by one into parallel with each other. Thus by adding in parallel with a 10 ohm coil a [...]

Jan-6th-2009

Multiple

A term expressing connection of electric apparatus such as battery couples, or lamps in parallel with each other. In the ordinary incandescent lamp circuits the lamps are connected in multiple. Synonym–Multiple Arc.

Jan-6th-2009

Motor, Shunt

A motor whose winding on the armature is in parallel with the winding on the field magnets. It is similar to a shunt wound dynamo. (See Dynamo, Shunt.)