Ampere W/V. Current can be measured by a multimeter, a device that can measure electrical voltage, current, and resistance. The standard ampere is most accurately realized using a Kibble balance, but is in practice maintained via Ohm's law from the units of electromotive force and resistance, the volt and the ohm, since the latter two can be tied to physical phenomena that are relatively easy to reproduce, the Josephson junction and the quantum Hall effect, respectively. At present, techniques to establish the realization of an ampere have a relative uncertainty of approximately a few parts in 10, and involve realizations of
The Civil Wars: A Tree Is Best Measured When It Is Down and a principal writer was Lebanese poet Etel Adnan, though the collage-like libretto incorporated a diverse collection of texts. Bryars set a speech by Marie Curie, "I am among those who believe that science has a great beauty", a poem by Pope Leo XIII on the then-new art of photography, and a speech by an imaginary scientist in Jules Verne's "20,000 Leagues Under the Sea". The work was not completed or publicly performed, but Bryars incorporated a number of its arias into the later works "Effarene" and "On Photography". The Civil Wars: A Tree Is Best Measured When It Is