well engineered motion into electricity device

[gravityblock]

Dead trout towed behind a cylinder can passively generate thrust and move upstream on a slack line when they happen to synchronize with the vortices (see snapshot below).  No muscle activity is required to maintain station, or even to move upstream (see snapshot below)!  Here's the supporting video!

Gravock

[gravityblock]

Lateral and ventral view of dead trout in flowing water (video).

Youtube user, wuweifish3 comment: "Yes, the fish is being "swum" by the vortices, not by muscle activity! The tether is slack when the fish is moving upstream, indicating passive thrust generation due to the intrinsic compliance of the musculoskeletal system" (snapshot below).

Gravock

[MileHigh]

Another false assertion by you!  There is no direct analogy between pitching a battery technology that never goes into production and pitching an underwater electricity generating technology that never goes into production as you falsely assert (see below).

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The device is essentially a scaled up version of the HS300, with some changes made to accommodate the facilities at the EMEC tidal test site. The turbine is heavily instrumented and will serve as a platform for future research and development activities.

References:  MeyGen and Andritz Hydro Hammerfest

Gravock

Drawing a parallel between two systems that never go into production is perfectly valid - the commonality is that they never go into production.

Then you try to pull off a bait-and-switch by not talking about the company Vortex Hydro Power which has no working systems and switching over to two different European companies that extract power from moving water using 100% conventional turbine blade technology that is by design much simpler and perfectly suited to driving a coaxial generator.

[MileHigh]

For the trout, there is nothing to get excited about.

1.  When the trout wants to expend minimal energy, it will relax all of its muscles.  Hence it will be indistinguishable from a dead trout.  As they explain, the trout can rest in moving water by positioning itself next to a natural water vortice.

2.  A trout can swim upstream by exploiting the natural vortices in the moving water as much as possible.  It's like a condor staying aloft without expending any energy by exploiting the upward convection currents in the air.

3.  A trout can expend energy and create a small vortice next to it's body, and then swim such that the two factors combine and it can move very quickly.

Without any naturally occurring vorticies in the water to exploit, common sense tells you that a trout has to expend energy to swim against the current.

[MileHigh]

Zombie Fish: Science makes a dead trout swim upstream (with video)!

The water swims the fish.  "Fish don't' swim, they're swum and birds don't fly, they're flown", Viktor Schauberger.

Like I said, common sense doesn't always rule, so you'll need to put your thinking cap on, assuming of course you have one.

Gravock

No, common sense rules almost all of the time, and here your failure is to not mention any special conditions.

Me:  Common sense tells you that a trout has to expend energy to swim against the current.

You:  Common sense doesn't always rule, so you'll need to put your thinking cap on, assuming of course you have one.

And there is your fail right there.  You are a really lousy debater with all of the bait-and-switch nonsense or making loaded statements like above.

Here is how the discussion should have gone:

Me:  Common sense tells you that a trout has to expend energy to swim against the current.

You:  With a set of special conditions where there are natural vortices in the water, the trout can exploit these vorticies and swim against the current while expending a bare minimum of energy, or if it is very lucky it can swim against the current expending no energy at all.

I would like to assume that you actually have a thinking cap, and in any future debates you will be honest and express yourself properly and avoid the technique used by the pulp pseudoscience press where they write fake headlines for legitimate articles.