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An Aeromovel train in Porto Alegre. The girder under the train forms an air duct. The vehicle is connected to a propulsion plate in the duct which is
An Aeromovel train in Porto Alegre. The girder under the train forms an air duct. The vehicle is connected to a propulsion plate in the duct which is then driven by air pressure.
Arriving at Kingstown on the Dalkey Atmospheric Railway in 1844
Arriving at Kingstown on the Dalkey Atmospheric Railway in 1844
Saint Germain piston carriage
Saint Germain piston carriage
Jolly-sailor station on the London and Croydon Railway in 1845, showing the pumping station, and the locomotive-less train
Jolly-sailor station on the London and Croydon Railway in 1845, showing the pumping station, and the locomotive-less train
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Vacuum pump and bell jar for vacuum experiments, used in science education during the early 20th century, on display in the Schulhistorische Sammlung
Vacuum pump and bell jar for vacuum experiments, used in science education during the early 20th century, on display in the Schulhistorische Sammlung ('School Historical Museum'), Bremerhaven, Germany
The Crookes tube, used to discover and study cathode rays, was an evolution of the Geissler tube.
The Crookes tube, used to discover and study cathode rays, was an evolution of the Geissler tube.
A glass McLeod gauge, drained of mercury
A glass McLeod gauge, drained of mercury
Light bulbs contain a partial vacuum, usually backfilled with argon, which protects the tungsten filament
Light bulbs contain a partial vacuum, usually backfilled with argon, which protects the tungsten filament