Posted on 01/20/2014 10:03:05 AM PST by Kaslin
Scientists have recently discovered that rough surfaces may actually reduce the amount of friction and drag after testing the hypothesis on the microscopic level.
“According to researchers at UCLA, rough surfaces lined with tiny ridges may actually reduce drag,” says the Science Recorder. “Modeling fluid flow between two surfaces lined with tiny ridges, researchers found tiny ridges actually reduce drag, allowing the for fluid to flow around in a more efficient manner….This is not the first time scientists have sought to create models based on rough ridges to reduce drag. However, advances in technology now allow scientists to create models on a microscopic level.”
Yes, but it’s the first time that the testing has been linked to global warming.
Of course by now we should know that EVERYTHING eventually relates to global warming.
Or income inequality.
So, anywho: Scientists says that by reducing drag on sea-going vessel less fuel will be need… and therefore…she’s a WITCH!
OK, not really.
But almost.
The scientists actually say since sea transport accounts for 4 percent of greenhouse gases, reducing drag will have “a substantial impact on global warming emissions,” because of the reduced fuel requirements with less drag.
Hey, when you are reaching for straws even a fraction of 4 percent reduction is a “substantial” amount-- especially when the Chinese are ratcheting up output of greenhouse gases way past the 4 percent mark.
And that is what confuses me about the science behind greenhouse gases and global warming, especially as it applies to policy.
Years ago I offered to shave my head bald and eat a can of dog food if someone—anyone-- could show me a credible scientific paper that demonstrates how the earth would cool even a fraction of a degree Fahrenheit by enacting a carbon tax here in the United States, such as the one proposed by the Democrats in 2009 and 2010.
I’m still waiting.
Because one would suppose that in policies promoted by properly-thinking, modern progressives-- who worship all things science— and have no time for mumbo jumbo about faith and religion, that at the very least they’d have data to support that their policies will cool the earth, solve world hunger, bring people out of poverty, improve education, create income equality, or pay female White House staffers commensurate with men.
OK, the last one was outrageous. Never gonna happen under Obama.
What was I thinking?
At the very least, I was thinking that people like Ericynot, BoatBoy, DoctorRoy or Hillinger would enjoy me being bald and eating dog food.
Heck, I’d even make a video of it.
But the problem remains: Sea levels aren’t rising, storms aren’t nastier and more brutish. The only science that’s being done is the type where estimates are used where data is called for and predictions are being used instead of conclusions.
Stumped by the fact that temperatures are not accurately reflecting current climate “models”- in fact temperatures have remained stable for 17 years- scientists on the government gravy train are trying to tie any weather event to so-called climate change.
Or income inequality. Which really?Aren’t they the same things?
Hurricanes? Global warming.
Tornadoes? Global warming?
Drought? Global warming?
Blizzards, dropping temperatures, meteorites, Big Gulps? Global warming.
Last year I documented how researchers made up a map showing how vegetation could change in the arctic because of global warming.
The map, no lie, was called the “most accurate map” ever produced of its type.
A long last, scientists have revealed the single most important document ever, I wrote.It’s a crayon-colored map showing how “trees” could grow in the arctic.
If finally, mercifully, any one of the so-called “climate models” that so far have failed to “model” climate accurately, suddenly and then accurately begin to “model” climate in real time, then, well, WOW!
“Experts say the wooded areas in the region could increase by 50% over the coming decades,” writes the UK’s Daily Mail, “and accelerate global warming in the process. Researchers have unveiled the most accurate map ever (!) of how vegetation could change in the region.”
In the meantime,ThinkProgresshas published a remarkable paper calledArctic Sea Ice Death Spiral And Cold Weatherthat proves, or at least,says- same thing if you are a liberal - that globalwarmingis to blame for …coldweather in Germany.
Stumped by the fact that temperatures are not accurately reflecting current climate “models”- in fact temperatures have remained stable for 17 years- scientists on the government gravy train are trying to tie any weather event to so-called climate change.
Even homosexuality has been tied to global warming via population control.
“With the natural world on the brink of demise largely because of overpopulation,” G. Roger Denson, a self-appointed social theoretician wrote on the Huffington Post,“unrestrained homosexuality, as one of a variety of ethical and democratic measures available to us today, offers perhaps the most natural option to be enjoined.”
Unrestrained gayness?
Seriously?
Going in through the out door with another man doesn’t seem “the most natural option to be enjoined” in trying to cool down the earth’s atmosphere.
But in the interest of fairness if G. Roger Denson wants to produce an actual scientific paper proving me wrong, I got a can of dog food and clipping shears here waiting.
Maybe drag is reduced in sterile saline solution, but the problem with any ocean going vessel is that the hull stays clean at a microscopic level for about a second or two after it's put in the water. After that, algae and plants would fill any microscopic dimples on the ship hull to the point that any improvement in efficiency would be as imaginary as models of global warming. At least that's my prediction, based upon all available data, estimates, models, and hockey sticks I have at my fingertips.
Golf ball dimples provide drag, and due to the back-spin there is more underneath than on top. Air flows faster over the top (less drag), and Bernoulli’s theorem shows that pressure goes down when air (or fluid) velocity goes up.
This pressure differential provides lift that keeps the ball in the air longer.
Jeweled (deliberately roughened) surfaces on metal can hold lubrication better, which DOES reduce friction.
Reduced drag = sounds homophobic to me.
“Scientists have recently discovered that rough surfaces may actually reduce the amount of friction and drag after testing the hypothesis on the microscopic level.”
Anyone, who has ever used machinists’ gauge blocks, knows that very smooth metal sticks to other very smooth metal. The stickiness is at the molecular level, and it can be very difficult to separate two pieces of very smooth, flat metal.
True enough. I was thinking of it from a theoretical point of view. Having spent a summer scraping and repainting the bottom of a 38' sail boat way back in the dark ages, I'd have to agree with your assesment of the marine environment. I figure barnacles take about 30 seconds or so to appear even with the very expensive paint we had to use.
Oh, and how much freaking teak can you actually put on a boat? OMG.
great explanation
i was thinking more along the the baser lines of this(and yes I know the article talking about fluids)
http://www.autoblog.com/2009/10/22/mythbusters-golf-ball-like-dimpling-mpg/
Other things (barnacles and corrosion) add to it.
BUT , what if you had something the keeps anything from sticking to the surface , especially water ?
Well, it's already available. Think of what it would do to minimize the noise of PROPS on SUBMARINES and eliminate CAVITATION. Think of the added speed it would give to any kind of boat.
The product is called NEVERWET. Watch this video.
Bump
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