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2. Extech Instruments - Wikipedia

   en.wikipedia.org/wiki/Extech_Instruments

   Extech was founded in 1971. In October 2007, FLIR Systems acquired Extech for $40 million. [1] [2] In December 2009, FLIR Systems sold Extech Data Systems, a division of Extech which made portable printers. [1] [3] In November 2011, the company relocated to Nashua, New Hampshire. [4]

3. pH meter - Wikipedia

   en.wikipedia.org/wiki/PH_meter

   Beckman Model M pH Meter, 1937 [1] Beckman model 72 pH meter, 1960 781 pH/Ion Meter pH meter by Metrohm. A pH meter is a scientific instrument that measures the hydrogen-ion activity in water-based solutions, indicating its acidity or alkalinity expressed as pH. [2]

4. pH indicator - Wikipedia

   en.wikipedia.org/wiki/PH_indicator

   In and of themselves, pH indicators are usually weak acids or weak bases. The general reaction scheme of acidic pH indicators in aqueous solutions can be formulated as: HInd (aq) + H 2 O (l) ⇌ H 3 O + (aq) + Ind − (aq) where, "HInd" is the acidic form and "Ind −" is the conjugate base of the indicator. Vice versa for basic pH indicators ...

5. Dry January: What is it and how beneficial can giving up ...

   www.aol.com/dry-january-beneficial-giving...

   The Dry January campaign was started in 2013 by Alcohol Change U.K., a charity focused on reducing alcohol harm. What are the health benefits of Dry January? While research on how quitting alcohol ...

6. Silver chloride electrode - Wikipedia

   en.wikipedia.org/wiki/Silver_chloride_electrode

   Commercial reference electrodes consist of a glass or plastic tube electrode body. The electrode consists of a metallic silver wire (Ag (s)) coated with a thin layer of silver chloride (AgCl), either physically by dipping the wire in molten silver chloride, chemically by electroplating the wire in concentrated hydrochloric acid (HCl) [3] or electrochemically by oxidising the silver at an anode ...

7. Hegseth to meet with Trump at Army-Navy game - AOL

   www.aol.com/hegseth-meet-trump-army-navy...

   Pete Hegseth will meet with President-elect Trump at the Army-Navy game on Saturday, a Hegseth adviser told The Hill. The president-elect was expected to attend the game, which will take place in ...

8. Zach Ertz, Washington's second-leading receiver, ruled out vs ...

   www.aol.com/sports/zach-ertz-washingtons-second...

   Washington Commanders tight end Zach Ertz left Sunday's 20-19 win over the New Orleans Saints with a concussion.. Ertz suffered the injury in the first half following a catch and run. He made a ...

9. Arnold Beckman - Wikipedia

   en.wikipedia.org/wiki/Arnold_Beckman

   Arnold Orville Beckman (April 10, 1900 – May 18, 2004) was an American chemist, inventor, investor, and philanthropist. While a professor at California Institute of Technology, he founded Beckman Instruments based on his 1934 invention of the pH meter, a device for measuring acidity (and alkalinity), later considered to have "revolutionized the study of chemistry and biology". [1]