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In gas dynamics, the Kantrowitz limit refers to a theoretical concept describing choked flow at supersonic or near-supersonic velocities. [1] When an initially subsonic fluid flow experiences a reduction in cross-section area, the flow speeds up in order to maintain the same mass-flow rate, per the continuity equation.
Choking, also known as foreign body airway obstruction (FBAO), is a phenomenon that occurs when breathing is impeded by a blockage inside of the respiratory tract.An obstruction that prevents oxygen from entering the lungs results in oxygen deprivation.
In case of choking on a foreign body: Stand behind the affected person and wrap your arms around him/her. Push inwards and upwards under the ribs with a sudden movement by your second hand. If the performed actions were not effective, repeat them until you free respiratory tract of the affected person from a foreign body.
Although choking — which is a form of erotic asphyxiation — is not a new sexual practice, it used to be quite rare. Even in BDSM and kink communities, sexual asphyxiation was long regarded as ...
In sports, choking is the failure of a person, or persons, to act or behave as anticipated or expected. [1] This can occur in a game or tournament that they are strongly favoured to win, or in an instance where they have a large lead that they squander in the late stages of the event.
A universal sign of choking has been designated as a silent indication from a person who is unable to breathe, and consists of placing both hands on one's own throat while trying to attract the attention of others who might help. [13] The man on the right is performing the universal sign of choking by placing both hands on his throat.
Some troops leave the battlefield injured. Others return from war with mental wounds. Yet many of the 2 million Iraq and Afghanistan veterans suffer from a condition the Defense Department refuses to acknowledge: Moral injury.
The blackout challenge is an internet challenge based around the choking game, which deprives the brain of oxygen. [1] It gained widespread attention on TikTok in 2021, primarily among children. [2] It has been compared to other online challenges and hoaxes that have exclusively targeted a young audience. [3]