3 ms·

I like the idea, but it seems completely impractical. How is this possibly cheaper than boats? Also, building a floating tube in the water seems a lot harder

by powera 10y ago

I like the idea, but it seems completely impractical. How is this possibly cheaper than boats? Also, building a floating tube in the water seems a lot harder than an elevated tube on land, because you can't possibly reach the ocean floor for supports.

joering2 10y ago
Its cheaper because the differences in height/pressure between both ends would push the cargo on its own. It would be similar to drooping an object from height - when gravity works you don't need extra energy to push the object. You wont reach the floor. It would be suspended on simple "air bags" controlled by computer - again using the simple physics of gas in fluid being pushed upwards.