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Los Angeles, USA - June 10, 2012: Foucault pendulum in Griffith park in Los Angeles. The pendulum was installed in 1935 to demonstrate the rotation of the Earth.
Foucault pendulum in the Griffith Observatory in Los Angeles, California, USA.
engine order telegraph in slow ahead position
old tram steering wheel
Variable rate utility meters or multiple tariff meters allow utilities to charge customers different rates tariffs at different times of day
Medical Lab Equipment used in Medicin Prepration process Health Care Himachal Pradesh India 3
Old Barometer, Weathered and Rusty with Age. Canon 5DMkii Lens EF24-70mm f/2.8L USM ISO 50
Vintage electric meter hanging on the wall. High quality photo
Close-up of vintage electronic components, including vacuum tubes, in an old radio or amplifier.
power factor meter to measure the power factor of a transmission system, defined as cosine of the angle between the voltage and current
Old diesel locomotive's control panel with analog meters
Measuring instrument of the old machine in a factory
Vacuum tube close-up image with several tubes. They were crucial to the development of radio, television, radar, sound recording and reproduction, long-distance telephone networks, and analog and early digital computers.
Closeup of a old analog milliammeter for 500 milliampere of direct current, isolated on black.
close up of tab keys on an antique and weathered adding machine, outdoors on display and for sale at a junkyard, Long Island, New York
electric power systems
Ship telegraph in the engine room, close-up.
The Kennicott Mine, also called the Kennecott Mine, is located in Interior Alaska. This copper mine had its heyday in the early 1900’s. Located in the area known as McCarthy, this ghost town mine once employed hundreds of people. Today it stands as a reminder of days gone by. Visitors come from all across the world to step back into the days of the Kennicott Copper Mine. The power plant was built in 1924. This power plant was used to provide electricity for the plant as well as the town of McCarthy.
a glimpse into the industrial past, where precision and manual control were paramount. The image is focused on a panel featuring two aged pressure gauges encased in glass, their needles poised in a still dance of measurement. A brass diagram plate, etched with operational instructions, stands out with a luminous sheen, suggesting the importance of this guidance in the machinery s operation. Below, a trio of levers with spherical handles sits in readiness, each marked with signs of wear that hint at countless adjustments over years of service. The composition is rounded out by the warm glow of a bulb, casting an ambient light that highlights the textures of metal and the patina of time.
Extreme macro detail shot of an 1800's-era antique explorer's compass
Antique style cash register. Old-time cash register in shop. Vintage mechanical cash register system Telegraph machine. Wooden material
A closeup of indicator dials from the famous 'Bombe' machine at Bletchley Park used for deciphering German encrypted 'Enigma' messages
An old-style aneroid barometer isolated on white.
Close-up of an vintage ancient ammeter isolated on white background
Vintage dials and gauges in room
Interior and equipment of old Deutsche Bahn railcars and diesel locomotive. Old railway depot in Linz, Germany. Free access without admission or fee.
Closeup of a 1940's -era radio dial
Free Images: "bestof:Thompson Galvanometer, 1965 - Museum of Science and Industry (Chicago) - DSC06522.JPG en Exhibit in the Museum of Science and Industry Chicago Illinois USA"
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