A Perpetual Motion device

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helloha
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re: A Perpetual Motion device

Post by helloha »

Same as the spring, with an opening, the buoys lift up the piston,
although it might face with some issues, like
- the opening might need to be wider
- too much friction at the edges of piston
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buoyant_reset.jpg
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re: A Perpetual Motion device

Post by Andyb »

If you made the float heavier that may help ,nothing like a bit more mass to help out .
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re: A Perpetual Motion device

Post by Tarsier79 »

The float + piston combined still has to have less density than water or it won't pull the piston up. The same as if the piston was made of wood(the kind that floats).
This means that you will still never get the water level to overflow back into the top.

You still didn't state the end goal. As I stated before, it would have saved a lot of pointless step by step posts.

Helloha, I think you still need to grasp how buoyancy works, before you try to use in conjuction with the hydraulic system. I think Art did very well explaining the problems with hydraulics.

What exactly are you trying to overcome, and to what end?
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re: A Perpetual Motion device

Post by helloha »

The float + piston combined still has to have less density than water or it won't pull the piston up
This is also my concern.
If it can't, then do a hybrid of spring & buoy, the buoy nevertheless is still and will continue to try to float up, that can be used as support to the spring.
And also don't be stingy, use as many buoys as possible.
will still never get the water level to overflow back into the top.
No idea what this sentence is describing, but I'm guessing you mean after the reset (after the piston move up), how to get the water to fill up above the piston again. There's a temporary container that store water for the filling purpose. But this is a design issue, there are other way to fill up the top, beside that temporary container.

The image attached show how to balance a hydraulic system.
As hydraulic is essentially a lever, so when a force (or weight) is applied at one end, the other side will raise (as there is no force applied there). So apply another force at the other side to balance the lever.
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fluid_characteristic_10.jpg
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Tarsier79
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re: A Perpetual Motion device

Post by Tarsier79 »

H. The area of something doesn't mean its volume.

As Art said: the single column has more leverage than the wide column x 4. When you push down the wide column, you move 4 blocks of water 1 height, but in the thin column, the 4 blocks of water have to move 4 height each due to the original movement.....and vice versa. 4 x leverage.....

So, the single column will push down untill the level is equal.
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re: A Perpetual Motion device

Post by helloha »

T. volume? It's only to look good

Just summarizing your description

- when push down (applying force) the wide column by 1 height, 4 blocks of water move to thin column;
- so at thin column, 4 blocks of water raise 4 height each

- vice versa

- now push down (applying force) the thin column by 4 height, 4 blocks of water move back to wide column;
- so the 4 blocks of water raise 1 height back at wide column

- and the thin and wide column will have equal level

OK, sound awesome :)

*************************************************************

For the previous posted image, I make a mistake about the balance of hydraulic. For the narrow inlet, it only need to apply 1N downward force or 1 cube to achieve balance, due to 4x leverage, the upward force on the wider inlet will be 4N, same with the 4N downward force of wider inlet, thus achieving balance.

So if based on the image, with 4N downward force on the narrow inlet, the upward force on the wider inlet will be 16N, probably will push the wider piston slightly higher up, while the narrow piston will go very deep down. So don't learn from that image, it's wrong.
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re: A Perpetual Motion device

Post by helloha »

To improve on pulling the piston up, can add more buoys on the top of piston, or at the bottom of piston, or both.
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add_more_buoys.jpg
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re: A Perpetual Motion device

Post by Tarsier79 »

But, as you add buoys, the water level rises, meaning you have to get the output even higher to overflow. I see no way of achieving your reset.
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re: A Perpetual Motion device

Post by helloha »

The buoy can cause the water level to rise, but they also cause the weigh/force to increase, refer to image.

If the area is 1 sq metre, that's not big, so it's inappropriate to use big buoy;
use mini life-buoys that occupy a whole 10 cm height, so the water level will rise roughly 10cm, assuming the height is 100cm, then the total height with buoys will be 110cm, it's not that high a rise for water level.

And since the buoy also increase the weighs, so can adjust the height back to 100cm by removing the water;
or can even reverse the role, the buoys and piston will be the force, while the weigh of water is more for support;
or a 50/50 role, the buoy/piston/water all share the load..... these are just up to how's the design
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total_weigh_of_water_ball.JPG
weigh_of_red_float_ball.JPG
weigh_of_water_bottle.JPG
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re: A Perpetual Motion device

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‘If you can’t explain it to a 11-year-old, you probably don’t understand it yourself.
For simplicity is genius.'



Confucius say : Simpletons say simplicity is genius ....Genius.
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re: A Perpetual Motion device

Post by Hmserebus »

Confucius also say :

Pump 200 kPa into 4 tires and drive away .Car still only have 200 kPa not 800 kPa . Simple. Genius.
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re: A Perpetual Motion device

Post by helloha »

This one measure the weighs of a totally submerge floatable ball (or buoy), although still doesn't know whether there's any difference on the weighs acting on the container (or piston) between a floating ball and a submerged ball.
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weigh_container_ball_holder_cover.jpg
weigh_ball_holder_cover.jpg
weigh_container_water.jpg
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re: A Perpetual Motion device

Post by Tarsier79 »

H. Things weigh what they weigh. putting them in a different order doesn't change that. Just as adding buoys to your piston doesn't change the amount of water it will have to displace, and its density if it is to float. Just as you cannot make the water overflow on the output while providing a gravity based reset.
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re: A Perpetual Motion device

Post by helloha »

cannot make the water overflow on the output while providing a gravity based reset.
What does this mean?
I assume the "water overflow" is the water rising up on the output inlet (the narrow area inlet),
and "while providing reset".....
This sounds like doing the "water rise" and "reset" at the same time, or two actions at the same time

It's two actions (or it can be three or four actions) at alternate time
(1) first do the "water rise",
(2) complete the "water rise",
(3) then do the reset (think of the reset as "recharging")
(4) complete the reset,
(5) repeat (1)

and for the buoys, by default think of them as the support for the spring, using the spring to do the reset
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re: A Perpetual Motion device

Post by Tarsier79 »

No. It is one at a time, to complete a cycle. Not possible.
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