efficiency in life systems Re: T.J., it makes you look brilliant.



tj Frazir wrote:
The laws of physics says ..
evry time you convert the energy you will have a loss ,,,and evry time
its a mecanical convrsion of thrust its a big loss.

So that proves not convering thrust into rotation is MUCH better then
converting thrust into mechnical rotoation then to thrust.

Well, Life creatures seem to disagree with this concept.
In all living cells energy conversion usually looks like this

1) chemical reactions (of many different kinds) create proton gradient across the membrane
2) enzyme (say engine 1) transfers energy of the gradient of H+ to
energy of creation of ATP molecule from ADP.
3) Energy of ATP to ADP conversion is used to power all other things.


There are exceptions from it, for example "motor" enzyme that turns the shaft that move the bacteria around (Flagella), is powered directly by the proton gradient.
But even than, it is a two-step energy conversion.

So it this multi-step step chain created by evolution because it does not like the cell to be efficient?

I say, no, it is because the alternative was even less efficient.

There is always a compromise between robustness of the design
and its efficiency. When some part fails, it needs to be replaced,
which also costs energy. So overall energy balance (that evolution
optimizes) has to consider both momentary efficiency and robustness.

Regards,
Evgenij



And the water rocket steam ship engine dont have parts to bust.
Its cleaner ..faster lighterr cheeper easyer.

.



Relevant Pages

  • Re: Heavy Lift Design for Mining/Cargo Propulsion
    ... takes energy and equipment to achieve. ... produce thrust in a direction opposite the stream. ... a deuterium-Tritium fuel pellet with ... glass lasers is used to predict pellet size, delivery rate, ...
    (sci.space.policy)
  • Re: How Rockets Differ From Jets
    ... There have been a few numbers associated as to what Radon energy can ... Rn-->ION THRUST PIE IN THE SKY ... worth something a bit greater than 3.14e9 joules/gram/second. ... it seems if your spaceplane can so easily accommodate such ...
    (sci.space.shuttle)
  • Re: Hydrogen Cars, Trucks, and Buses Are BS Indeed
    ... it costs enermous energy to produce Hydrogen. ... LH2, or that of my h2o2 + synfuels that do not require the extensive ... SSME thrust can be throttled between 67 to 109% of rated thrust. ... Flow rates: At FPL the oxygen flow rate into the SSME is ...
    (sci.energy.hydrogen)
  • Re: sci space policy targeted by disinformation experts?
    ... Energy is a problem with high speed flight. ... You eject the fuel into the stream at the stream velocity - ... By the time it reaches the thrust structure at the rear of the ... hours 30 minutes at the higher efficiency. ...
    (sci.space.policy)
  • Re: Solar powered lasers in space
    ... And power to weight of the engine must be ... energy accurately directed at a thrust structure. ... I am afraid I was simply thinking about energy. ... transmits the laser energy but reflects the bulk of the plasma ...
    (sci.space.policy)