It's not about friction, it's about pressure. The force needed to to push the ball into the tank from the bottom is greater than the total buoyancy of balls on the right + total weight of balls on the left. Specifically, it is equal to the weight of the column of water over the valve.
>>7790415 Think about this smartass, if it were that simple, all the years and years of Ph.D.s and Professors would have thought of it. The fact that you found it instead of them, in that scenario, your finding would've been deserving of 2 nobel prizes.
>>7790457 How about this? No shaft seal, just a glass cylinder going into the tank which has a very very slightly larger diameter than the balls, also reduce the length of the string connecting the balls.
>>7790415 >There must be a way to make this work. Your contraption does not depend on the number of balls, right? Simply replace them all with a closed flexible air-filled tube (makes sealing much easier). Would you still expect it to work?
Here's an idea. Pay one poor soul to just sit there for several hours a day, letting the water pour out a little bit in a bucket underneath each time the hole opens up before the next ball comes up, and the guy just picks the bucket up, and dumps the water back in at the top? Give me my nobel.
>>7793605 Even better, why not just pay a whole warehouse full of people to ride on stationary bikes to provide energy. Each worker rides for an hour at a time, then gets a break afterwards, then comes back for another hour. Schedules are arranged in such a way that the energy flow never stops. Little movie screens with tv shows and shit on them for the workers to watch while they work. Arm machines that can be used too. Workers get in great shape while getting paid.
In fact, we could just equip all the gyms in the world with weight machines linked to creating energy for their town. You get in shape and you help out your community. There'd be a little readout on the side telling you how many carbs you lost, and how much energy you just created for the town.
I got a great business idea: a specialized gym that markets to fat people
On the top floor of the building fatasses would pay money for spinning class memberships. The stationary bikes would run generators to create electricity to cover the lights, heat, AC and run the deep fryers in the burger bar downstairs which I would own as well. Vents from the restaurant would be routed to the changerooms. Fatasses would have to pass by the restaurant every time they come in and out of the gym and won't be able to resist the delicious burgers. The burgers will keep them fat and they will need to keep going to the gym.
>>7790415 I thought I was on /sci/. Does no one here know what physics is. You recognize that the balls would flow from high pressure to low pressure, but you ignore the fact that the same amount of energy is required to get the ball for low pressure (air) into the water at the high pressure point.
>>7790625 >The sentence you quoted is 100% correct. >"force needed is equal to weight of water column" a force never equals a weight, period just because you multiplied the projected area with the pressure exerted by the water column to get a force in your head doesn't mean that you can omit it in writing when trying to explain someone else the concept of it
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