Framed Prints
Framed Print of 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. Heritage Images features heritage image collections. © The Print Collector/Heritage Images
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Media ID 36232681
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
Modern Frame 14"x12" (36x31cm)
Ready to Hang Contemporary Framed Prints adds style, protection, and a polished touch to your space - effortlessly.
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Wood effect frame, card mounted, 10x8 fade resistant photo print. Overall outside dimensions 14x12 inches (36x31cm). Environmentally and ozone friendly, 40mm wide x 15mm Polycore® moulding has the look of real wood, is durable and light and easy to hang. Biodegradable and made with non-chlorinated gases (no toxic fumes) it is efficient; producing 100 tons of polystyrene can save 300 tons of trees! Prints are glazed with lightweight, shatterproof, optical clarity acrylic (providing the same general protection from the environment as glass). The back is stapled hardboard with a sawtooth hanger attached. Note: measurements provided are estimated outer dimensions, which include both the image and the frame. While we aim to keep sizing consistent, exact dimensions may vary slightly due to differences in print size or production requirements, which may result in a variation in the overall size (up to approximately 2.5cm (1"))
These are individually made so all sizes are approximate
Estimated Image Size (if not cropped) is 23.1cm x 19.3cm (9.1" x 7.6")
Estimated Product Size is 36cm x 31cm (14.2" x 12.2")
