Crass Spektakel@lemmy.world to NonCredibleDefense@lemmy.worldEnglish · 9 months agoHypersonic Missile Inbound!!!lemmy.worldimagemessage-square30fedilinkarrow-up1190arrow-down116file-text
arrow-up1174arrow-down1imageHypersonic Missile Inbound!!!lemmy.worldCrass Spektakel@lemmy.world to NonCredibleDefense@lemmy.worldEnglish · 9 months agomessage-square30fedilinkfile-text
minus-squarequindracolinkfedilinkEnglisharrow-up23arrow-down1·edit-29 months agoTIL hypersonic is genuinely a distinct word from supersonic.
minus-squareJohnDClay@sh.itjust.workslinkfedilinkEnglisharrow-up23·9 months 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-up17arrow-down1·9 months 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.