NO,not true! Water is lifted by sun energy, some dropped (ever hear about gravity?) via rain into a lake, then drops again thru a generator to generate electricity; THAT water is lost, AND that potential energy is transformed and WILL NOT RETURN. Wood eventually gets consumed via oxidation, transforming stored chemical energy (from sun) into heat. The wood gets "lost" by that transformation, and WILL NOT RETURN. I could go on,but you get the drift. Read up on the 3 laws of thermodynamics: 1) you cannot win, 2) you cannot break even, 3) you lose.
On Thu, 27 Nov 2014 00:07:37 -0800, Robert Baer Gave us:
Sure it can be used again. If the generator feeds a basin which then has another drop in elevation, another generator can be installed at the second drop and THE SAME water can be used again.
In fact, cascading drops and tier arranged generators is how we
*should be* doing it.
If a 1000 foot drop and a 500 foot drop produce the same because the drop to a turbine is less than either, then additional stages can be added in that drop stage.
So, good job of picking one of the items which can prove you are incorrect.
And the same water can technically turn the same generator if it gets rained back down into the basin that feeds it... A VERY long cycle, but possible, nonetheless.
The main river that flows through our town hasn't stopped, yet. As many other rivers on this world hasn't....
Off course, a river might dry out somewhere along the line (or will become irrepressible). But not yet, so it is renewable (in an overseeable time...). As wood does. e.g. Crude-Oil takes too long, as Bill Sloman told. - that's not "really" renewable (except you have too much time)
With no sun, yes. But yet, it seeems the trees (wood) will grow and thrive as before.
You are right, but. That's just a word finding 'renewable energy'. We all know what it is meant to be....
Dumb shit...so, by your "logic" drop the water all the way down to the bottom of the Mariana trench? Why not use the power generated to lift that water all the way back to the top? Does that boat your rock?
RAIN...that is water lifted BY THE ENERGY FROM THE SUN which i mentioned...
Ah Hah! SOMEONE with intelligence. Correct! "renewable energy" is used to mean something completely different and is used in a non-thinking and UN-intelligent manner.
That words mean what the majority agree that they mean.
Pedants think that words mean what they used to mean, and there are no end of dictatorial half-wits who will tell you what a word ought to mean, but in practice a word is an arbitrary symbol which means what the majority of the people exchanging it understand it to mean (no matter how imperfect their understanding).
The idea is to NOT use ANY of OUR generated energy getting ANY water back to a higher elevation.
You can't be serious. What you suggest removes all gains and even costs more than fusion does!
What goes into a water driven turbine has to have a place to exit or things get crowded pretty quickly.
There always has to be a release. An HVAC system would not be able to work, were the exchanger in the same place as the controlled environment.
So sure, smartass... IF you could DIG a mile wide hole in the water, and make a big hard tube all the way down to the bottom, free of water, then you could cascade generators all the way down the drop, all the way around the walls. Again, the problem is with the "exhaust" volume, not whether or not work can be performed.
The problem, as i see it is the MISUSE of "renewable". There is this un-thinking assignment of the concept "unlimited or infinite source", and that leads to pseudo-counter silliness like "global cooling" (remember around 20 or so years ago?), and "global warming". It does not really matter how "true" such silliness is, what matters is that the silliness further muddles an "issue", confuses many (which in many cases is exactly what is intended), and side-tracks what little real thinking may exist on the indirect subject - "unlimited" resource.
If one really wants to talk about a spade,then SPECIFY: 1) do you mean a digging implement with a pointed digging end, 2) one with a flat end, or 3) are you a racist saying something you should not?
No, it leads to a timescale of 50 to 100 years. That approx. a lifetime... Your timescale is god-made ;-)
The sun (energy) is not renewable? As we know, the gases of an exploding star will form a Nova sometime. And then again... and again... and so on. At least sun-energy is renewable. And wind, on an other planet..., and also water energy... on an other ......
been posting here. So that fact that you've finally noticed that I'm aware of it might be progress. Real progress would involve you understanding what it meant, rather than posting a mis-representation to score a rhetorical p oint.
ease,
e
ia,
hich you are born. Obesity is more socially acceptable in the USA than it i s in most societies.
your list of excuses is "accident" which causes 5.02% of deaths in the US. Since it is the leading cause of death from ages 1-44 is does have a dispro portionate effect on life expectancy.
claim falls at the first hurdle.
m
ight have noticed, if you'd read what I wrote.
s" from accidents as whole, and show them as causing only half the death ra te - about 2.3%. There aren't enough other accidental deaths for them to ge t listed. Suicide does show up - which it doesn't on the US lists, probably because US medical people have the old-fashioned habit of lying about it t o spare the relatives.
nowing
comparisons are possible.
e of death data. The national statistics from which life expectancies are d erived do generally include cause of death data, but since the cause of dea th data isn't directly comparable from one country to another your spurious argument about why Americans die younger than the inhabitants of 33 other countries was just your usual smoke and mirrors.
l
ll's
ity.
You are. The figures you quote are projections--the *expected* life span o f someone born *today*.
as a crude indicator of medical quality. If you've got a better one, tell us about it.
I've repeated it constantly. The true measure of medical care is how well i t treats actual illness--how likely you are to be cured when you've got a particular problem.
o.
u don't like the result you concoct a nonsense argument, and when you get c alled on it, you try to move the goal-posts. In this particular case you wa nted to explain away America's depressingly low life expectancy figures wit h the following densely statistical argument
e US life expectancy short-fall,
False, references already provided, plus plenty of raw data sufficient for you to rebut if you could. You can't.
g to mislead your readers.
Your points aren't worth addressing in detail--they're individually and collectively pointless.
By citing life expectancy you're presuming that the small differences in lifespan expectancy between countries are solely attributable to medical care, which is stupid and false on its face.
By insisting on citing life expectancy, you're simply propagandizing.
ity. They use life expectancy data - listed for people who have already die d - as a crude indicator of medical quality. If you've got a better one, te ll us about it. Infant mortality is another popular proxy, and the US does badly there too.
The life expectancy for people who've died is usually zero. FYI.
u don't like the result you concoct a nonsense argument, and when you get c alled on it, you try to move the goal-posts. In this particular case you wa nted to explain away America's depressingly low life expectancy figures wit h the following densely statistical argument
e US life expectancy short-fall, and you do know enough to have been aware that you were consciously trying to mislead your readers.
The main reason people use proxies rather than actual cure rates is, mostly , to mislead (to use the aggregate as an excuse to push a narrative, and pres s the narrative home before the underlying falsity's discovered).
The other reason is to dumb things down, which amounts to the same thing.
--
John Larkin Highland Technology, Inc
picosecond timing laser drivers and controllers
jlarkin att highlandtechnology dott com
http://www.highlandtechnology.com
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