carbon microphone

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noun

a microphone in which a diaphragm, vibrated by sound waves, applies a varying pressure to a container packed with carbon granules, altering the resistance of the carbon. A current flowing through the carbon is thus modulated at the frequency of the sound waves

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Words nearby carbon microphone

carbonium, carbonium ion, carbonization, carbonize, carbonless paper, carbon microphone, carbon monoxide, carbon monoxide hemoglobin, carbon monoxide poisoning, carbonnade, carbon nanotube

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

How to use carbon microphone in a sentence

It reacts very readily with oxygen by burning smokelessly, with carbon dioxide and water as its byproducts.
Methane on Mars: Life or Just Gas?|Matthew R. Francis|December 17, 2014|DAILY BEAST
Methane (chemical formula CH4) is one of the simplest hydrocarbons, which literally means “containing hydrogen and carbon.”
Methane on Mars: Life or Just Gas?|Matthew R. Francis|December 17, 2014|DAILY BEAST
She found a way to make little kitten steps to the microphone in unison with the music.
Is Bigger Better for St. Vincent?|David Yaffe|December 4, 2014|DAILY BEAST
Both get electronics, but the proffered image for boys is a microphone; for girls, a radio.
Sexism Begins in the Toy Aisle|Nancy Kaffer|November 29, 2014|DAILY BEAST

Yeah, having a microphone and so many people under your control always frightened me.
George Clinton on Industry ‘Mobsters’ and How Nobody Wants to Listen to a Crackhead|Curtis Stephen|November 19, 2014|DAILY BEAST
What are a few paltry, lumps of crystallised carbon compared to a galaxy of a million million suns?
God and my Neighbour|Robert Blatchford
The carbon dioxid evolved distends the stomach, and its outline can easily be determined by percussion.
A Manual of Clinical Diagnosis|James Campbell Todd
Carbon is the largest constituent of plants, and forms, in round numbers, about 50 per cent of their weight when dry.
Elements of Agricultural Chemistry|Thomas Anderson
The particular phenomena of vegetation also afford abundant evidence that humus cannot be the only source of carbon.
Elements of Agricultural Chemistry|Thomas Anderson
The composition of animal caseine differs from this principally in the amount of carbon.
Elements of Agricultural Chemistry|Thomas Anderson