so the international space station is like 400k kg. gravity on 1kg of mass is 9.8n. so 400000 times 9.8 is 3920000n (newtons) which is the amount of gravitational force exerted on the space station if it was sitting on the street. obviously, thrust in n needs to be greater than the attractive force.    loads/2017/05/hu17-feces.pdf from the article there's a few things we can infer. mammal shit has pretty constant physics is one and there is a formula we can half-ass make work to determine how many newtons diarrhea can produce. > newtons first law indicates that rectal pressure drives feces of mass rpd2l/4 at acceleration a, pd2pmin /4 = rapd2l/4, where d is the diameter of feces. we assume that the density of diarrhea, r, is the same as that of water. the diarrhea accelerates with zero initial velocity and travels a distance of l before exiting from the body. what that means, basically, is that diarrhea is water. per the study, a human can expel diarrhea in .5 seconds. i've seen videos where a chick is launching diarrhea like three feet in the air, so it takes .5 seconds to launch a ml of water 91cm. a human colon can have a 300 square meter surface area. that means that it would take a pajeet with 13066.66 repeating pascals of surface pressure in his colon to launch a space station.
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