schnurrito@discuss.tchncs.de to xkcd@lemmy.worldEnglish · 8 days agoWhat if everything was antimatter EXCEPT Earth?www.youtube.comexternal-linkmessage-square15fedilinkarrow-up11arrow-down10
arrow-up11arrow-down1external-linkWhat if everything was antimatter EXCEPT Earth?www.youtube.comschnurrito@discuss.tchncs.de to xkcd@lemmy.worldEnglish · 8 days agomessage-square15fedilink
minus-squareTreczoks@lemmy.worldlinkfedilinkEnglisharrow-up0·8 days agoWe would be long gone. Can you imagine what a football-sized (or even bigger) antimatter meteorite would do? Hint: six to seven grams of antimatter is the equivalent of the bomb that took out Hiroshima.
minus-squareteft@piefed.sociallinkfedilinkEnglisharrow-up0·8 days ago6 to 7 grams? No. 1/4 of a gram of antimatter reacting with 1/4 gram of matter is just about the right mix. That’ll be around 15 kilotons.
minus-squareTreczoks@lemmy.worldlinkfedilinkEnglisharrow-up0·8 days agoI re-did the calculation. You are closer, but the conversion of half a gram yields about 10 kilotonnes. Makes the meteorite a bit worse. Calculation based on 4’184’000’000’000 joules per kiloton TNT.
minus-squareteft@piefed.sociallinkfedilinkEnglisharrow-up0·edit-28 days agoNow we just gotta ramp up production at LHC. Nobody tell them what the antimatter is for.
We would be long gone. Can you imagine what a football-sized (or even bigger) antimatter meteorite would do?
Hint: six to seven grams of antimatter is the equivalent of the bomb that took out Hiroshima.
6 to 7 grams? No. 1/4 of a gram of antimatter reacting with 1/4 gram of matter is just about the right mix. That’ll be around 15 kilotons.
I re-did the calculation. You are closer, but the conversion of half a gram yields about 10 kilotonnes. Makes the meteorite a bit worse.
Calculation based on 4’184’000’000’000 joules per kiloton TNT.
Now we just gotta ramp up production at LHC. Nobody tell them what the antimatter is for.