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A fermentation lock or fermentation airlock is a device used in beer brewing and wine making that allows carbon dioxide released during fermentation to escape the fermenter, while not allowing air to enter the fermenter, thus avoiding oxidation. There are two main designs for the fermentation lock. These designs work when half filled with water.
In brewing, a carboy or demijohn is a glass or plastic vessel used in fermenting beverages such as wine, mead, cider, perry, and beer. Usually it is fitted with a rubber stopper and a fermentation lock to prevent bacteria and oxygen from entering during the fermentation process. During the homebrewing process, a primary carboy is used for ...
'S' trap inlet to drain [further explanation needed]. The air lock phenomenon can be used in a number of useful ways. An 'S' trap (a pipe that descends from a reservoir, then curves back up, then down again) allows liquid to flow from top to bottom unhindered, and gas cannot flow through the trap unless it has enough extra pressure to overcome the liquid head of the trap.
The first ever commercial space airlock was the Nanoracks Bishop Airlock, installed on the ISS in December 2020. It is "bell-shaped" and is designed to transfer payloads out from the ISS interior and into space. As of July 2023 it is the largest airlock of its kind on the station, capable of fitting "payloads as large as a refrigerator." [7]
The Nanoracks Bishop Airlock is a commercially funded airlock module launched to the International Space Station on SpaceX CRS-21 on 6 December 2020. [3] [4] It was berthed to the Tranquility module on 19 December 2020 by the Canadarm2. [5] The module was built by Nanoracks, Thales Alenia Space, and Boeing. [6]
A close-up of a government-reference airlock module for the Gateway Space Station. Mission planning calls for an airlock to be delivered and integrated to Gateway by the crewed Orion spacecraft on the Artemis VI mission after launching on an Space Launch System (SLS) Block 1B rocket.
The Quest Joint Airlock is the primary airlock for the International Space Station. Quest was designed to host spacewalks with both Extravehicular Mobility Unit (EMU) spacesuits and Orlan space suits. The airlock was launched on STS-104 on July 14, 2001. It was attached to the starboard CBM of the Unity during STS-104. The four external HP ...
The decommissioned tower on Ford Island, Hawaii, was built to train United States Navy Pacific Fleet submariners prior to World War II, and was converted for use as an airport control tower after the attack on Pearl Harbor. [9] The ETT at Pearl Harbor, Hawaii. Across the harbor, the tower on Sub-Base Pearl Harbor was used between 1932 and 1983 ...