i_have_no_enemies@lemmy.world to Technology@lemmy.worldEnglish · edit-24 days agoA Stunning Fusion Rocket Could Cut Interplanetary Travel in Half—and We'll Try It in Just 2 Yearswww.popularmechanics.comexternal-linkmessage-square9fedilinkarrow-up151arrow-down16file-text
arrow-up145arrow-down1external-linkA Stunning Fusion Rocket Could Cut Interplanetary Travel in Half—and We'll Try It in Just 2 Yearswww.popularmechanics.comi_have_no_enemies@lemmy.world to Technology@lemmy.worldEnglish · edit-24 days agomessage-square9fedilinkfile-text
https://web.archive.org/web/20250331084035/https://www.popularmechanics.com/space/rockets/a64256267/fusion-rocket-sunbird/
minus-squarei_have_no_enemies@lemmy.worldOPlinkfedilinkEnglisharrow-up5arrow-down1·4 days agoare these calculations correct? https://www.desmos.com/calculator/4d7lq5iazh
minus-squareseven_phone@lemmy.worldlinkfedilinkEnglisharrow-up17·4 days agoIt is pretty close to the first of April.
minus-squareJonC@programming.devlinkfedilinkEnglisharrow-up3arrow-down1·edit-24 days agoShip gets lighter as more fuel is destroyed. Ship gets heavier as it gets closer to light speed. At 90% of light speed, the ship’s mass would be around 2.3x its rest mass. I haven’t looked at your calculations in detail, but you seem to be missing that important point!
are these calculations correct?
https://www.desmos.com/calculator/4d7lq5iazh
It is pretty close to the first of April.
Ship gets lighter as more fuel is destroyed. Ship gets heavier as it gets closer to light speed.
At 90% of light speed, the ship’s mass would be around 2.3x its rest mass.
I haven’t looked at your calculations in detail, but you seem to be missing that important point!