Selfrunning Waterpump-generator device runs 60 Watts lamp...

[Rise of Raven]

I would have liked to see him stop the machine by removing the water hose from the water wheel, not by unpluging it.

[khabe]

I would have liked to see him stop the machine by removing the water hose from the water wheel, not by unpluging it.

You right,
And removed slowly, no jumpy gestures 
khabe

[Koen1]

So, any replications yet?

It would indeed seem to be a variation of the idea of powering a
windmill using an electric fan which in turn is powered by a generator
that is powered by the windmill.
Every physics teacher in the world will tell you it is impossible.
(Unless there is actual natural wind adding to the fan input)

Yes, obviously when you connect the motor of the waterpump
to the generator shaft via a water flow that is allowed to drop down
on a waterwheel, you eliminate direct coupling of the motor
and the generator's counter force,
but the energy needed to pump X water up should be more
than the energy produced by a generator driven by an inefficient
waterwheel which is driven by X water falling down. The water
doesn't get any lighter or heavier, the pump is apparently 80%
efficient, the waterwheel something like what, 50%, let's say
we also have an 80% efficient generator, and if you add all that up
it seems totally impossible for more energy to be produced by the
generator than the pump needs to pump the water back up...
Let's say we input E energy into the pump, then only 80% of that is
turned into moving water, which drops down onto a waterwheel that
is say 50% efficient so that's 50% of the 80% we already had, and now
the generator still needs to turn that into usefull energy output again
at say 80% efficiency again so that's 80% of 50% of 80% of E that comes
out of the generator. input/output ratio = E/0.32E, so the output would
seem to be only 32% of the input?

So how could it work, at all? 

[Janus20]

So, any replications yet?

It would indeed seem to be a variation of the idea of powering a
windmill using an electric fan which in turn is powered by a generator
that is powered by the windmill.
Every physics teacher in the world will tell you it is impossible.
(Unless there is actual natural wind adding to the fan input)

Yes, obviously when you connect the motor of the waterpump
to the generator shaft via a water flow that is allowed to drop down
on a waterwheel, you eliminate direct coupling of the motor
and the generator's counter force,
but the energy needed to pump X water up should be more
than the energy produced by a generator driven by an inefficient
waterwheel which is driven by X water falling down. The water
doesn't get any lighter or heavier, the pump is apparently 80%
efficient, the waterwheel something like what, 50%, let's say
we also have an 80% efficient generator, and if you add all that up
it seems totally impossible for more energy to be produced by the
generator than the pump needs to pump the water back up...
Let's say we input E energy into the pump, then only 80% of that is
turned into moving water, which drops down onto a waterwheel that
is say 50% efficient so that's 50% of the 80% we already had, and now
the generator still needs to turn that into usefull energy output again
at say 80% efficiency again so that's 80% of 50% of 80% of E that comes
out of the generator. input/output ratio = E/0.32E, so the output would
seem to be only 32% of the input?

So how could it work, at all? 

It might just work if the water wheel and pump were thrown away. If the generator voltage and frequency were V and Hz  and the Capacitor C farads ...... then ..............Generator output = CV^2(Pi.Hz) Watts = At least the bulb output plus all other "inefficiencies". Say 120 Watts.

Vortex1 can handle this and I will betcha ya'll he does it this year.

[spinner]

Self-blown windmills... or recirculating watermills... Escher draw a few of those in the past.
If you're interested, there are descriptions and pictures, all the way to 15th century...

Yes, probably we've missed something....