Beckman pH Meter - Pasadena, CA
Posted by: Groundspeak Premium Member bluesnote
N 34° 08.351 W 118° 07.591
11S E 396135 N 3778162
Quick Description: A historical marker on the Caltech campus.
Location: California, United States
Date Posted: 2/19/2021 10:53:49 AM
Waymark Code: WM13TX5
Published By: Groundspeak Premium Member Alfouine
Views: 0

Long Description:
The plaque says, "Arnold O. Beckman developed the first commercially successful electronic pH meter while a member of the faculty of the California Institute of Technology. This rugged and portable “acidimeter,” which had all necessary components housed in a single unit, allowed scientists to measure acidity accurately and rapidly. It immediately met an important need of the California citrus industry: how to measure the pH of lemon juice. The innovative features of the pH meter, including an early use of integrated electronic technology, were the basis for subsequent modern instrumentation developed by Beckman and Beckman Instruments."
Group that erected the marker: American Chemical Society

Address of where the marker is located. Approximate if necessary:
Pasadena, CA, USA


URL of a web site with more information about the history mentioned on the sign: Not listed

Visit Instructions:
Take a picture of the marker, preferably including yourself or your GPSr in the photo. A very detailed description of your visit may be substituted for a photo. In any case please provide a description of your visit. A description of only "Visited" or "Saw it while on vacation" by anyone other than the person creating the waymark may be deleted by the waymark owner or the category officers.
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bluesnote visited Beckman pH Meter - Pasadena, CA 2/19/2021 bluesnote visited it