•  
    December 2020
    M T W T F S S
    « Nov   Jan »
     123456
    78910111213
    14151617181920
    21222324252627
    28293031  

    • Archives for December 4, 2020

    Why Is High Pressure Associated With Fair Clear Skies While Low Pressure Systems Are Associated Wit

    Read more.. »

    Negretti & Zambra Barograph

    Negretti & Zambra Barograph. An early 20th century clockwork barograph by Negretti & Zambra London. The barograph has a clockwork works that rotate the drum which has a paper record attached and the nib resting on the record leaves a line which shows the fluctuation of barometric pressure. The works are [...]

    Read more.. »

    Antique RARE Henry J. Green Brass Recorder Scientific Instrument No. 524

    Antique RARE Henry J. Green Brass Recorder Scientific Instrument No. THANK YOU FOR SUPPORTING SMALL BUSINESS! The item “Antique RARE Henry J. Green Brass Recorder Scientific Instrument No. 524″ is in sale since Thursday, December 3, 2020. This item is in the category “Antiques\Science & Medicine (Pre-1930)\Scientific Instruments\Barometers”. The seller is “the*treasure*trove*” [...]

    Read more.. »