And what country can preserve its liberties if their rulers are not warned from time to time that their people preserve the spirit of resistance? Let them take arms. The remedy is to set them right as to facts, pardon and pacify them. What signify a few lives lost in a century or two? The tree of liberty must be refreshed from time to time with the blood of patriots and tyrants.
Shock diamonds form when the supersonic exhaust from a propelling nozzle is slightly over-expanded, meaning that the static pressure of the gases exiting the nozzle is less than the ambient air pressure.
Get out the marshmallows…
ReplyDeleteThrust Baby Thrust!
ReplyDeleteMach diamonds for the win
ReplyDeletewhat are the orange circles within the jet plasma like exhaust?
ReplyDeleteMach Diamonds
DeleteShock diamonds form when the supersonic exhaust from a propelling nozzle is slightly over-expanded, meaning that the static pressure of the gases exiting the nozzle is less than the ambient air pressure.
ReplyDelete