धातु-दाखिल इसके अंग्रेजी अर्थ का उदाहरण

Branly discovered that loose metal filings, which in a normal state have a high electrical resistance, lose this resistance in the presence of electric oscillations and become practically conductors of electricity.

Temistocle Calzecchi-Onesti's experiments with tubes of metal filings, as reported in "Il Nuovo Cimento" in 1884, led to the development of the first radio wave detector, the coherer, by Branly some years later.

This Branly showed by placing metal filings in a glass box or tube, and making them part of an ordinary electric circuit.

The operation of the coherer is based upon the large electrical contact resistance offered to the passage of electric current by loose metal filings, which decreases when direct current or alternating current is applied between the terminals of the coherer at a predetermined voltage.

The most common form consisted of a glass tube with electrodes at each end, containing loose metal filings in contact with the electrodes.