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what the fuck was that? the kid can't even turn bolts the right way to loosen them.
and this professor of engineering uses a trickle of water to get his retard kid famous? what happens when that thing fills up? obviously the rectangular steel piece will seal the circular hole really well. that guy needs to rethink whatever the fuck he's doing, because spreading misinformation like this is the opposite of what an engineering professor should be doing. thanks for actually explaining this "simple" solution, prof. i'd be embarrassed if i was the dean of the engineering school and u of minnesota.
as long as we're throwing out ridiculous ideas that haven't been thought through, the easiest way to fix this problem is to have a giant underwater robot chew a bunch of bubblegum and then use that to plug the hole.
its the idea that he presented in the video. i thought that this would be pretty well possible if something along the line of 1foot this steel was used and when the flow is stopped, the rest of the hole is covered by cement