Artikelbeschreibung

Barometer and thermometer ship barometer Qecksilber after Torricelli with thermometer gimbal in stick form suspended in a mahogany wood - version (referred to as "stick") is the barometer is 92 cm long centrally within the mahogany bar is a capillary (glass-Sä ; column) with a mercury-filled fixed. About the catcher vessel to compensate for the different mercury - the amount of measurement - pillar is located at the lower end of the column in a protective box made of brass. This box can be opened. At the upper part there is the display - device of the device: a silver scale with black air pressure in inches on the right side and weather type designations (eg FAIR CHANGE RAIN) on the other side to monitor the pressure - Vera ; changes is a shift from metal pointer at the glass-mounted column, the "display - house of Mercury - barometer can be closed with a door (17.5 cm x 6 cm) (with side protection Huh ) check mark, on the inside door of a thermometer is fitted with a red fill. The barometer is a flip-up carrier brass gimballed gimbals The guaranteed ship in the vertical position of the mercury - Scoreboard at any angle, the maximum distance of the wall is 25 cm. The original barometer is signed:: Garner & Marney Ltd London fecit The production of the barometer was at 1880 / 1900 the unit moved to Munich pillar of the single expert, who still work with mercury A little history to understand TORRICELLI: Torricelli in 1643 demonstrated that air has weight. He filled a glass tube with mercury, the mercury plunged into a vessel bottom and found that the mercury in the tube up to an average of 76 cm rose above the mercury column, the room was empty ( So even evacuated).