enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Nitrogen - Wikipedia

    en.wikipedia.org/wiki/Nitrogen

    It was first discovered and isolated by Scottish physician Daniel Rutherford in 1772 and independently by Carl Wilhelm Scheele and Henry Cavendish at about the same time. The name nitrogène was suggested by French chemist Jean-Antoine-Claude Chaptal in 1790 when it was found that nitrogen was present in nitric acid and nitrates.

  3. Daniel Rutherford - Wikipedia

    en.wikipedia.org/wiki/Daniel_Rutherford

    Rutherford discovered nitrogen by the isolation of the particle in 1772. [ 12 ] [ 13 ] When Joseph Black was studying the properties of carbon dioxide , he found that a candle would not burn in it. Black turned this problem over to his student at the time, Rutherford.

  4. Pennsylvania oil rush - Wikipedia

    en.wikipedia.org/wiki/Pennsylvania_oil_rush

    Pennsylvania oil production peaked in 1891, when the state produced 31 million barrels of oil, 58% of the nation's oil that year. But 1892 was the last year that Pennsylvania wells provided a majority of the oil produced in the US, and in 1895, Ohio surpassed Pennsylvania as an oil producer.

  5. Discovery of chemical elements - Wikipedia

    en.wikipedia.org/wiki/Discovery_of_chemical_elements

    The two discovered a new element in a molybdenum sample that was used in a cyclotron, the first element to be discovered by synthesis. It had been predicted by Mendeleev in 1871 as eka-manganese. [171] [172] [173] In 1952, Paul W. Merrill found its spectral lines in S-type red giants. [174]

  6. Court filings provide additional details of the US' first ...

    www.aol.com/news/court-filings-additional...

    A corrections officer who helped carry out the nation’s first nitrogen gas execution said in a court document that the inmate had normal blood oxygen levels for longer than he expected before ...

  7. Carl Wilhelm Scheele - Wikipedia

    en.wikipedia.org/wiki/Carl_Wilhelm_Scheele

    Carl Wilhelm Scheele (German:, Swedish: [ˈɧêːlɛ]; 9 December 1742 – 21 May 1786 [2]) was a German Swedish [3] pharmaceutical chemist.. Scheele discovered oxygen (although Joseph Priestley published his findings first), and identified molybdenum, tungsten, barium, nitrogen, and chlorine, among others.

  8. AOL Mail

    mail.aol.com

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  9. What happened at the nation's first nitrogen gas execution ...

    www.aol.com/news/happened-nations-first-nitrogen...

    Chandler was one of five media witnesses for Smith’s execution by nitrogen hypoxia. She has covered approximately 15 executions in Alabama over the last two decades, including the state’s ...