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Hopper, a prototype test vehicle for the SpaceX Starship; Hopper balloon, a kind of ultralight hot air balloon; Hopper barge, a kind of barge; Hopper car, a type of railway freight car; Gravity wagon, or slant wagon, a type of wagon that is essentially a hopper; used in agriculture; Space hopper, a toy: a ball with handles for bouncing on
A vertical-lift bridge or just lift bridge is a type of movable bridge in which a span rises vertically while remaining parallel with the deck. The vertical lift offers several benefits over other movable bridges such as the bascule and swing-span bridges. Generally speaking, they cost less to build for longer moveable spans. [1]
A wooden hopper for grain, on a millstone. Materials can be added either manually or automatically to the top of a hopper. For dust collection, it enters the hopper from a collection device. For example, baghouses are shaken or blown with compressed air to release caked-on dust from the bag. Precipitators use a rapping system to release the dirt.
A rotary car dumper or wagon tippler (UK) is a mechanism used for unloading certain railroad cars such as hopper cars, gondolas or mine cars (tipplers, UK). It holds the rail car to a section of track and then rotates the track and car together to dump out the contents. Used with gondola cars, it is making open hopper cars obsolete.
Illegally hopping a ride on a private freight car began with the invention of the train. In the United States, freighthopping became a common means of transportation following the American Civil War as the railroads began pushing westward, especially among migrant workers who became known as "hobos".
Talitrus saltator is found around the coasts of the North Sea and north-east Atlantic Ocean from southern Norway to the Mediterranean Sea.In most of its range, its daily cycle is strongly linked to the tides, with daily migrations of up to 100 metres (330 ft), but where there are no significant tides (as in parts of the Mediterranean), visual cues are used instead.
USS Hopper (DDG-70) is an Arleigh Burke-class guided missile destroyer of the United States Navy, named for the pioneering computer scientist Rear Admiral Grace Hopper. [5] Hopper is only the second US Navy warship to be named for a woman from the Navy's own ranks. This ship is the 20th destroyer of her class.