Crass Spektakel@lemmy.world to NonCredibleDefense@lemmy.worldEnglish · 1 year agoHypersonic Missile Inbound!!!lemmy.worldexternal-linkmessage-square30fedilinkarrow-up1190arrow-down116file-text
arrow-up1174arrow-down1external-linkHypersonic Missile Inbound!!!lemmy.worldCrass Spektakel@lemmy.world to NonCredibleDefense@lemmy.worldEnglish · 1 year agomessage-square30fedilinkfile-text
minus-squarequindraco@lemm.eelinkfedilinkEnglisharrow-up23arrow-down1·edit-21 year agoTIL hypersonic is genuinely a distinct word from supersonic.
minus-squareJohnDClay@sh.itjust.workslinkfedilinkEnglisharrow-up24·1 year agoIt’s usually over mach 5, but originally it was used to refer to when you start needing to deal with heating up the air.
minus-squarewinterayars@sh.itjust.workslinkfedilinkEnglisharrow-up18arrow-down1·1 year agoAlso around the point where jet engines kinda just stop working right.
TIL hypersonic is genuinely a distinct word from supersonic.
It’s usually over mach 5, but originally it was used to refer to when you start needing to deal with heating up the air.
Also around the point where jet engines kinda just stop working right.