“hey do you want the rest of my-“

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Hong Kong protester catching a tear gas grenade and throwing it back

Shock Diamonds are a formation of standing wave patterns that appears in the supersonic exhaust plume of an aerospace propulsion system, such as a supersonic jet engine, rocket, ramjet, or scramjet, when it is operated in an atmosphere. The diamonds are formed from a complex flow field and are visible due to the ignition of excess fuel. They form when the supersonic exhaust from a nozzle is slightly over or under-expanded, meaning that the pressure of the gases exiting the nozzle is different from the ambient air pressure. [x] [x]
Wolfe Air Reel [x]

Aubrey Plaza