Corkyskog@sh.itjust.works to No Stupid Questions@lemmy.world · 3 个月前If you were to launch a rocketship parallel to the earth, on wheels, how big would the ramp have to be to get it into space?message-squaremessage-square22linkfedilinkarrow-up148arrow-down13file-text
arrow-up145arrow-down1message-squareIf you were to launch a rocketship parallel to the earth, on wheels, how big would the ramp have to be to get it into space?Corkyskog@sh.itjust.works to No Stupid Questions@lemmy.world · 3 个月前message-square22linkfedilinkfile-text
minus-squaredwindling7373linkfedilinkarrow-up17·3 个月前If fast enough you need no ramp. It just takes off thanks to the curvature of the earth. It just leaves “sideways”.
minus-squareLifeInMultipleChoice@lemmy.worldlinkfedilinkarrow-up1·3 个月前For some reason I just pictured a 4 years old running full speed into a sliding glass door. But yeah if the landscape was flat, straight would work with enough thrust/lift to keep you at that vector
If fast enough you need no ramp. It just takes off thanks to the curvature of the earth.
It just leaves “sideways”.
For some reason I just pictured a 4 years old running full speed into a sliding glass door.
But yeah if the landscape was flat, straight would work with enough thrust/lift to keep you at that vector