balance electrometer

  • 21 Measuring instrument — Captain Nemo and Professor Aronnax contemplating measuring instruments in Twenty Thousand Leagues Under the Sea …

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  • 22 List of Russian people — The Millennium of Russia monument in Veliky Novgorod, featuring the statues and reliefs of the most celebrated people in the first 1000 years of Russian history …

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  • 23 List of electronics topics — Alphabetization has been neglected in some parts of this article (the b section in particular). You can help by editing it. This is a list of communications, computers, electronic circuits, fiberoptics, microelectronics, medical electronics,… …

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  • 24 History of electromagnetism — The history of electromagnetism, that is the human understanding and recorded use of electromagnetic forces, dates back over two thousand years ago, see Timeline of electromagnetism. The ancients must have been acquainted with the effects of… …

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  • 25 Electric charge — SI symbol: Q SI quantity dimension: Q SI unit: coulomb other units: e Derivations from other quantities: Q = I · …

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  • 26 Pierre Curie — Infobox Scientist name = Pierre Curie caption = Pierre Curie (1859 1906) birth date = 15 May 1859 birth place = Paris, France death date = death date and age|df=yes|1906|4|19|1859|5|5 death place = Paris, France nationality = French field =… …

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  • 27 Cosmic ray — For the film, see Cosmic Ray (film). Cosmic radiation redirects here. For some background types of cosmic radiation, see cosmic background radiation and cosmic background. The energy spectrum for cosmic rays Cosmic rays are energetic charged… …

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  • 28 Chemistry: A Volatile History — is a 2010 BBC documentary on the history of chemistry presented by Jim Al Khalili. It was nominated for the 2010 British Academy Television Awards in the category Specialist Factual. Contents 1 Episode 1 – Discovering the Elements 1.1… …

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  • 29 Braun, Karl Ferdinand — SUBJECT AREA: Electricity, Electronics and information technology, Telecommunications [br] b. 6 June 1850 Fulda, Hesse, Germany d. 20 April 1918 New York City, New York, USA [br] German physicist who shared with Marconi the 1909 Nobel Prize for… …

    Biographical history of technology

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