Framed Print : Pendulum-Room at the Bottom of the Harton Coal-Pit, 1854. Creator: Unknown
Framed Photos from Heritage Images
Pendulum-Room at the Bottom of the Harton Coal-Pit, 1854. Creator: Unknown
Pendulum-Room at the Bottom of the Harton Coal-Pit, 1854. Experiment to determine the weight of the Earth. The apparatus consists of two astronomical clocks with compensation pendulums, two invariable pendulums (Kater's) suspended...immediately in front of the clock pendulums. An astronomical clock, and an invariable pendulum were placed at each station with barometer and thermometer attached, which were regularly observed, so that the necessary corrections might be made for atmospheric resistance, variations of temperature, &c. There was also at each station a galvanic-signal-needle...connected by...insulated wires, placing the observers in electric communication. The upper and lower stations...were exactly in a vertical line, and distant nearly a quarter of a mile; and at each station the instruments were carefully enclosed to prevent the vibrations of the pendulums being affected by currents of air'. From "Illustrated London News", 1854
Media ID 36232681
© The Print Collector/Heritage Images
Astronomical Clock Clock Coal Industry Coal Mine Coal Mining Coalmine Colliery Equipment Experiment Gravity Industrial Revolution Manufacturing Physics Sir George Biddell Airy Time Timepiece Vibration Weight
12"x10" Modern Frame
10x8 Print in an MDF Wooden Frame with 180 gsm Satin Finish Paper. Glazed using shatter proof thin plexi glass. Frame thickness is 1 inch and depth 0.75 inch. Fluted cardboard backing held with clips. Supplied ready to hang with sawtooth hanger and rubber bumpers. Spot clean with a damp cloth. Packaged foam wrapped in a card.
Contemporary Framed and Mounted Prints - Professionally Made and Ready to Hang
Estimated Image Size (if not cropped) is 25.4cm x 25.4cm (10" x 10")
Estimated Product Size is 30.5cm x 25.4cm (12" x 10")
These are individually made so all sizes are approximate
Artwork printed orientated as per the preview above, with landscape (horizontal) or portrait (vertical) orientation to match the source image.
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