A team of scientists has revealed how a single quantum device can accurately measure the three fundamental units of electricity—the ampere (unit of electrical current), the volt (unit of electrical ...

THIS little work of 48 pp. is apparently issued as an oappendix to the author's class-book of “Electricity and Magnetism.” It contains a concise and easy account of the units in ordinary use, and of ...

SEVERAL of the many interesting papers presented to Section 2 of the International Congress of Electricity held in Paris last summer dealt with electrical units. Thirty years ago the general opinion ...