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Here is the dripper tracker concept
There is a string attached at the top.
The red string is attached at the bottom
As this float rises
The yellow string goes up
and the red string goes down
and the black thing over there turns
and if the float falls it goes in the opposite direction
Oops, it is caught (quick model that wasn't attached)
As you can see one goes up and one goes down
and it is all caused by
the water falling. Generally it would be up at the start and the water would go down over time
The water level is controlled by the height of the tube
which slowly falls down
and empties the barrel
The half full float weighs 25 kg and only needs to be 5 kg to do its job.
The emptying rate can be controlled in a whole bunch of different ways
It is a non' mechanical way of
getting the
circular motion that you need for solar tracking
So this is called "equatorial mount" or "equatorial platform"
when you have a rotating axis that
points at
the north star
so it is called equatorial mount or polar mount
and it is a way of aiming solar cookers that solar panels
you point this at the north star
and rotate
you mount your solar appliance
on this platform
So the dripper tracker applies the rotational energy to turn the appliance on the platform.
Check the solar projects 2012 playlist for more detail (It shows the entire device working)