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  • Sulpheric Acid (sic) corrosive substance warning sign Photographed in Israel.
    SL_SL5_6754.jpg
  • Guillaume François Rouelle (15 September 1703 – 3 August 1770) was a French chemist and apothecary. In 1754 he introduced the concept of a base into chemistry, as a substance which reacts with an acid to give it solid form (as a salt). From the book La ciencia y sus hombres : vidas de los sabios ilustres desde la antigüedad hasta el siglo XIX T. 3  [Science and its men: lives of the illustrious sages from antiquity to the 19th century Vol 3] By by Figuier, Louis, (1819-1894); Casabó y Pagés, Pelegrín, n. 1831 Published in Barcelona by D. Jaime Seix, editor , 1879 (Imprenta de Baseda y Giró)
    IR_Men-of-Science-T3_0599.jpg
  • Conceptual image of a male hand adding Date rape drug (GHB gamma-hydroxybutyric acid) to a cocktail. These drugs can be used to assist in the commission of a sexual assault
    IR_59089.jpg
  • The Gout 1799 by James Gillray (British, 1757-1815) published by Hannah Humphrey England, 18th century Etching hand-colored with watercolor on Wove paper. A devil figure is shown biting into painful and inflamed toe joints. Gout is a metabolic condition where uric acid crystals are deposited in the joints, causing great pain. The big toe is the joint most commonly affected. The main causes are genetic factors and diet.
    IR_Gout_2011182.jpg
  • Gaston Planté (22 April 1834 – 21 May 1889) was a French physicist who invented the lead–acid battery in 1859. This type battery was developed as the first rechargeable electric battery marketed for commercial use and it is widely used in automobiles. From the Book Les merveilles de la science, ou Description populaire des inventions modernes [The Wonders of Science, or Popular Description of Modern Inventions] by Figuier, Louis, 1819-1894 Published in Paris 1867
    IR_f_b21496626_0199.jpg
  • Dental care display at the Haifa museum of science pH monitor for various beverages from left to right: Apple Juice  pH 3.5, Water pH 7 and Cola pH 2.5. pH is the measure of the amount of hydrogen ions in a solution, and is used to measure its alkalinity or acidity. The probe of the pH meter, dipped in the solution, contains electrodes used to measure the electrical potential of the hydrogen ions. This is directly related to the pH.
    SL_20121228_185352.jpg
  • Dental care display at the Haifa museum of science pH monitor for various beverages from left to right: Apple Juice  pH 3.5, Water pH 7 and Cola pH 2.5. pH is the measure of the amount of hydrogen ions in a solution, and is used to measure its alkalinity or acidity. The probe of the pH meter, dipped in the solution, contains electrodes used to measure the electrical potential of the hydrogen ions. This is directly related to the pH.
    SL_20121228_185408.jpg
  • Recently picked oranges
    EF_f_1109_0747.jpg
  • Israel, Haifa, a fruit juice kiosk man squeezes oranges
    SL_SL2_3768.jpg
  • Close up of a yellow lemon slice
    IR_f_Fruit-Macro_D7431.jpg
  • Close up of a yellow lemon slice
    IR_f_Fruit-Macro_D7435.jpg
  • Computer generated geometric Op Art (Optical Art) image
    IR_f_OpArt-green-2.jpg
  • Computer generated geometric Op Art (Optical Art) image
    IR_f_OpArt-dots-9.jpg
  • Computer generated geometric Op Art (Optical Art) image
    IR_f_OpArt-dots-8.jpg
  • Computer generated geometric Op Art (Optical Art) image
    IR_f_OpArt-dots-7.jpg
  • Computer generated geometric Op Art (Optical Art) image
    IR_f_OpArt-dots-5.jpg
  • Computer generated geometric Op Art (Optical Art) image
    IR_f_OpArt-dots-3.jpg
  • Nicolas Lémery (or Lemery as his name appeared in his international publications) (17 November 1645 – 19 June 1715), French chemist, was born at Rouen. He was one of the first to develop theories on acid-base chemistry. From the book La ciencia y sus hombres : vidas de los sabios ilustres desde la antigüedad hasta el siglo XIX T. 2  [Science and its men: lives of the illustrious sages from antiquity to the 19th century Vol 2] By by Figuier, Louis, (1819-1894); Casabó y Pagés, Pelegrín, n. 1831 Published in Barcelona by D. Jaime Seix, editor , 1879 (Imprenta de Baseda y Giró)
    IR_Men-of-Science-T2_1145-crop.jpg
  • Israel, Mediterranean sea, Dead fish and a car battery on the shore
    SL_0812_DSC_0010_fs.jpg
  • Israel, Mediterranean sea, Dead fish and a car battery on the shore
    SL_0812_0008_fs.jpg
  • Neutral pH-7 displayed on a digital pH measuring device (ECO pH pH-Pocket-Tester by Step Systems)
    SL_SL6_7772.jpg
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