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Mess with your minds: A wind powered craft going faster than a tail wind speed.
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electrodacus:

--- Quote from: Brumby on December 23, 2021, 11:33:30 pm ---I draw attention to my earlier question:

--- Quote ---Are you saying that energy is stored across the entire swept area of the propeller?

--- End quote ---

--- End quote ---

Yes the entire swept area of the propeller acts as a barrier keeping the low and high pressure volumes separate.
Alex Eisenhut:

--- Quote from: electrodacus on December 23, 2021, 09:46:06 pm ---
--- Quote from: Kleinstein on December 23, 2021, 09:13:04 pm ---
The yo-yo toy is based on stored energy, but here it is only about the same toy, used in a  different way.

The yo-yo is moving in the same direction as the string is pulled, but faster than the string is pulled.
This is just like blackbird going the direchtion of the wind, and faster than the wind.

--- End quote ---

The thing you seems to ignore is that vehicle being faster than wind in same direction can not be pushed by the wind.


--- End quote ---

Good thing the propeller is creating its own wind going the other way, therefore adding to the total speed.

The Earth's wind is pushing against the propeller wind, which are both pushing against the propeller.
electrodacus:

--- Quote from: Alex Eisenhut on December 24, 2021, 12:53:31 am ---
Good thing the propeller is creating its own wind going the other way, therefore adding to the total speed.

The Earth's wind is pushing against the propeller wind, which are both pushing against the propeller.

--- End quote ---

Propeller is powered by what ?
This is a wind powered only vehicle. No wind power then no power. Unless you can accept that there is energy stored in pressure differential that pushes the vehicle even when above wind speed. Of course as any stored energy it will be finite thus vehicle will slow down below wind speed after that is used up.
Alex Eisenhut:

--- Quote from: electrodacus on December 24, 2021, 01:04:03 am ---
--- Quote from: Alex Eisenhut on December 24, 2021, 12:53:31 am ---
Good thing the propeller is creating its own wind going the other way, therefore adding to the total speed.

The Earth's wind is pushing against the propeller wind, which are both pushing against the propeller.

--- End quote ---

Propeller is powered by what ?
This is a wind powered only vehicle. No wind power then no power. Unless you can accept that there is energy stored in pressure differential that pushes the vehicle even when above wind speed. Of course as any stored energy it will be finite thus vehicle will slow down below wind speed after that is used up.

--- End quote ---

By stored energy, ie the kinetic energy of the moving vehicle as it moves up to wind speed. It never experiences a relative zero wind speed as it approaches wind speed, as the propeller is always blowing backwards. It will reach some sort of equilibrium state but wind is not that steady.

The kinetic energy of the vehicle is being drained by the propeller contraption, luckily, the wind keeps blowing, much like this thread.

Here's the main question; you surely consider yourself deeply scientific: so, for a theory to be scientific it must be falsifiable. What evidence would you accept to show your theory is false?

https://en.wikipedia.org/wiki/Falsifiability
thm_w:

--- Quote from: electrodacus on December 23, 2021, 06:33:24 pm ---Yes that bicycle calculator is incorrect (you are not the only one to get this wrong so that includes those people that did the calculator)
That calculator will say you can drive at 1km/h in 230km/h headwind with just 300W (easy for a cyclist)
This is maybe 80km/h no where near 230km/h and here is what happens
youtube.com/watch?v=IoX-JUPvrwo

--- End quote ---

That is not "maybe 80km/h", it says in the article "over 100km/h". How would you possibly stay upright?
and how would you stay upright traveling at 1km/h?
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