Open thread weekend

open_thread

I have some other things to attend to this weekend, posting will be light from me. But I’ve arranged for some entertainment.

Willis will be posting some of his tales of the sea, which will appear below this posting.

Other WUWT authors are welcome to make submissions also.

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Here’s Why So Many Russians Have Dash Cams
Russian car cams aim to drive out corruption

Jenn Oates

One more period and it’s a three day weekend that is badly needed. Fortunately that one last period is IB, so I’m getting off easy there.
Looking forward to more of Willis narrative!

Jeff Wood

There is a fair range of people who hang out here, and I wonder if one will put down his or her glass for a moment to explain something that has puzzled me a long time.
I live some 1,000 up on a hillside and as you might guess have a bit of a view to enjoy, perhaps forty miles depending on haze, then the view is inconsiderately blocked by high mountains.
The street lights in this village are of course rock steady, as are those of the hamlet perhaps a mile away.
The next village, say four miles off, their lights seem to flicker a little. At ten miles the village lights definitely flicker, and at the main town some thirty miles away, the street lights positively dance.
All this seems to apply regardless of temperature or atmospheric conditions, though I fancy that when there is a little mist the phenomenon diminishes. When hillwalking in my native Scotland (this is Italy now) I saw the same effect at night.
Is it my eyes, or is something real going on?

fraizer

I would guess that what you are observing is refraction caused by the difference in air density (variation with temperature) at various points in the path between the light source and your eye.

Bob Diaz

… but I’m willing to bet that Al Gore would blame it on Global Warming! ;-))

There was a golden moment here in Australia a couple of days ago when the ABC Radio National breakfast show broadcast false claims made by a Labor politician, (Bob Carr) about rising sea levels on a local Pacific Island. Following complaints from listeners, next day they brought in an ‘expert’ to clarify that sea levels were indeed rising rapidly and that this was undoubtedly due to global warming.
CAST:
FRAN KELLLY…. Radio Presenter, Greenist, and aspiring Journalist.
PROFESSOR CHURCH…Professor of Sea Level Rising at The Sea Level Rising Institute/in
collaboration with the CSIRO.
(The CSIRO are Australian Government Scientists i.e. the people who brought us cane toads and advised that Wyvenhoe Dam should be kept full because it was probably never going to rain in
Queensland again!)
INT: Radio Studio, MORNING
FRAN: So Professor Church, how do you respond to the fact that the Tide Gauges of the American Physical Union show that there has been no significant sea level rise round Kirabatu since 1993 – when according to what you’ve just been telling us there should have been a rise of around 45mm…and how does that tie in with Bob (Golden tonsils) Carr’s statement that he actually saw the tide rising over a village?
PROFESSOR CHURCH: Uhm ah…uh.
FRAN: Ok well thanks for clearing that up so authoritatively….so moving on to my next question……

Owen in GA

Echoing frazier, the greater the linear path the more likely there is going to be density changes on that path and in many different directions. As the index of refraction changes, the apparent position of the source appears to change thus giving you your dancing lights. It is more profound if there are particulates in the air and is definitely pronounced in high humidity – as the more the density varies, the more the index of refraction varies.

Robert of Ottawa

Jeff Wood February 15, 2013 at 2:03 pm
The same process that makes stars twinkle.

Bill Thomson

Hi Jeff Wood, I agree with frazer.
Air expands and changes density when it is heated. As light passes between mediums of different density it is refracted. The air between you and the lights you are viewing is probably slightly turbulent with some warm air pockets rising from the ground which had been heated during the day, with the cooler air falling to take its place. As the light passes through the interfaces between air of different temperatures it is bent or the rays converge or scatter. The farther away the lights are, the more opportunity for the light to be affected. Also the more distant lights take up a smaller angle of view, so it is easier for them to be totally obliterated momentarily by a small refraction of the light. Perhaps when there is mist the air is more stable..

jabre

I’ve previously espoused the virtues of the biofuels mandate (2007 Energy and Independence Act). My perception was the requirement to roll over to the cellulosic form of ethanol would spawn a strong and viable domestic ethanol fuel industry free from starch-based sources (corn/sugar beets/etc).
Unfortunately, even with the grand incentives to move forward on the table , the innovation has not kept up with the mandate or with the capability of the gut of a termite. The courts have rejected the mandate for this year.
http://www.agprofessional.com/news/Court-ruled-EPA-set-cellulosic-ethanol-mandate-too-high-189439311.html

pat

15 Feb: BBC: Italy makes ‘Mafia’ arrests over Sicily wind farms
Police have arrested five people in eastern Sicily suspected of involvement in Mafia corruption over contracts to build wind farms, Italian media report.
The mayor and a councillor in the small town of Fondachelli Fantina, in Messina province, were among those detained.
The five face charges including extortion, fraud and Mafia association…
A total of 11 people were under investigation, including two managers from a firm that won the main contract to build one of the wind farms, installing 63 turbines.
The contract was worth some 120bn euros (£103bn)…
The proceeds from contracts are believed to have been channelled to the fugitive head of the http://www.bbc.co.uk/news/world-europe-21476916

pat

watch your pensions, folks:
15 Feb: Bloomberg: Sally Bakewell: Canadian Pension-Backed Group Plans Wind Power for Prison
Partnerships for Renewables, backed with 100 million pounds ($155 million) of Canadian pension and infrastructure-fund money, will build as much as 500 megawatts of wind power at land owned by U.K. prisons and other bodies…
The London-based company is seeking unexploited land owned by government bodies such as the Forestry Commission and Coal Authority for renewable energy projects the U.K. is promoting to curb emissions linked to climate change…
The company received funding from Canada’s OPSEU Pension Trust and London-based Infrared Capital Partners Ltd., which each own a third of the company, to develop wind farms, Ainger said. The Carbon Trust, a London-based adviser to government and business on reducing emissions, owns the remaining shares…
A portion of the revenue from Standford Hill will go to the Ministry of Justice, responsible for prisons, he said. The company also plans to submit bids to supply power directly to prisons and has set up a community benefit fund, he said.
http://www.bloomberg.com/news/2013-02-15/canadian-pension-backed-group-plans-wind-power-for-prison.html

John Bell

How Green Thy Earth Day Expo?
Rochester, Michigan held an Earth Day Celebration Expo, on April 18 to 20. (www.earthdayexpo.org) The web site notes, “150+ covered exhibits of earth-friendly, healthy products & services.” and that, “Since its inception in 1970, Earth Day has grown into the world’s largest annual secular event, observed in 150 countries by over one billion people.” That is all fine with me, at face value I am all for it, but I sense something gone awry. This is the Rochester, Michigan where a million electric lights are hung on Main Street in the winter.
Some exhibitors use the words natural, earth-friendly, eco-friendly and herbal to describe their products or services. These words have no specific meaning and are vague marketing buzz words and cause warning lights to flash on the dashboard of my mind.
What caught my attention was the “Wellness Tent”. Whenever I see the words “wellness activities”, “holistic” or “well-being” I smell a scam. Be wary of the words “complimentary” and “alternative medicine”. Quacks who offer “treatments” that give a “sense of well-being” are by definition giving a placebo. You feel better for a few hours, but it is all in your head. Penicillin works even if the patient is in a coma, but with placebo treatments, the person must be awake and aware of receiving the treatment. Trick or treatment?
Three exhibitors, “Natural Awakenings”, “Healing Garden Journal” and “Mind Body Spirit Guide” publish free magazines chock full of nutty new age notions of every stripe; channeling, psychic readers, séances, magnet therapy, reflexology, reiki, energy balancing, ayurvedic, aromatherapy, naturopathic medicine, chi energy, spiritual healing, craniosacral therapy, chiropractic, quantum energy, therapeutic touch. All the popular quackery in one place. How does any of this rubbish connect to a “brighter, greener future” that the Expo touts?
One exhibitor, “The Biomat Company” (www.thebiomatcompany.com) has the most ridiculous claims for their electric heating pad products. The pads are claimed to offer “quantum healing energetics, negative ions, far infrared” and claim a connection to a Nobel prize awarded to Neher and Sakmann in cellular chemistry. The word “quantum” is a sure sign of a scam. When the pads can warm up without being plugged in is when they may use the word quantum. The organizers of the Earth Day Expo help legitimize quackery when they allow this kind of exhibitor to prey on people.
As a mechanical engineer, I know enough about energy, chemistry and technology to see past the hype. At least one electric car on display claimed “zero emissions”. That really insults my intelligence. To build a car makes emissions, and making electricity in the US means burning coal. I have nothing against making electricity, but here again the claims ring empty.
The expo should carry the notice “FOR ENTERTAINMENT ONLY”. A stellar example of this is the $19,000 Hammacher Schlemmer pedal car built for seven people, a nice gee-whiz gadget, but of no practical use. The Expo is a study in Greenwashing and irrational exuberance. Most, if not all offerings are placebos, ways to look and feel green, but without substance.
To be sure, people want a source for green products and services, where they can feel good about their purchases and think that they are making a difference. They want fast gratification without the work of digging past the claims. At the end of the day they get in their SUVs and return to their heated homes, air conditioning, electricity, plumbing, kids and dogs. I can’t blame them. As Americans, we are all oil addicts, no matter how “green” you think you are. One can do very little without giving up a comfy life style. It is virtually impossible to make anything or do anything in a meaningfully “green” manner; it will always use a resource and create carbon dioxide. You can not make an omelet without braking eggs. We can recycle some things, drive a smaller car, compost yard waste, but we don’t want to cause ourselves any pain. And it would take a whole lot of pain to make any difference.
If you really want to be green, live like the Amish. No phone, no lights, no motor car, not a single luxury, like 1793, it’s as primitive as can be.

Latitude

The Big Picture Of USHCN Adjustment Fraud
Posted on February 15, 2013 by stevengoddard
NCDC is using the US temperature graph below, to influence government policy.
==============
They document that they do 0.5F tampering to the data, and that their tampering goes flat after 1990.
==============
But they actually do 1.5F tampering, and it increases exponentially after 1990.
==============
The graph below overlays the actual tampering, on top of the documented adjustments. USHCN tampering is almost 300% of their documented adjustments.
==============
The whole NCDC US temperature record is a complete fraud. The thermometer data shows no temperature increase since 1900.
==============
NOAA, NASA and CRU all acknowledged this, before they started cheating after the year 2000.
==============
Phil Jones and NOAA said there was no warming in the US.
February 04, 1989 Last week, scientists from the United States Commerce Department’s National Oceanic and Atmospheric Administration said that a study of temperature readings for the contiguous 48 states over the last century showed there had been no significant change in average temperature over that period. Dr. (Phil) Jones said in a telephone interview today that his own results for the 48 states agreed with those findings.
New York Times
In 1999, Hansen said that he didn’t see anything happening in the US.
Empirical evidence does not lend much support to the notion that climate is headed precipitately toward more extreme heat and drought. The drought of 1999 covered a smaller area than the 1988 drought, when the Mississippi almost dried up. And 1988 was a temporary inconvenience as compared with repeated droughts during the 1930s “Dust Bowl” that caused an exodus from the prairies, as chronicled in Steinbeck’s Grapes of Wrath…..
in the U.S. there has been little temperature change in the past 50 years, the time of rapidly increasing greenhouse gases — in fact, there was a slight cooling throughout much of the country
charts, graphs, and links at:
http://stevengoddard.wordpress.com/2013/02/15/more-ushcn-adjustment-fraud/#more-68841

Gunga Din

Jeff Wood says:
February 15, 2013 at 2:03 pm
Is it my eyes, or is something real going on?
fraizer says:
February 15, 2013 at 2:12 pm
I would guess that what you are observing is refraction caused by the difference in air density (variation with temperature) at various points in the path between the light source and your eye.

========================================================
Mr. Layman here. A slight updraft caused by heat from a building or a road, a breeze stirring up pockets of different temperatures will move the air and change the density of the air you are looking through. I suspect you are seeing the same effect that makes stars twinkle but at a much closer range.

Robert M

Jeff Wood says:
February 15, 2013 at 2:03 pm
Look up heat haze. Note, it does not have to actually be hot for it to occur, just different temperatures between the air and the ground…

@Jeff Wood
I think there is little doubt that the flickering you see is refraction from the movement of air at slightly different temperatures and longer distances, coupled with the fact that the standard lights are visibly smaller from the more distant towns. Jupiter and Saturn don’t flicker nearly as much as stars simply because they subtend a bigger angle, even if still measured in arc seconds.
Seeing as how this is an Open Thread, I want to recount a story I read in elementary school that made an impact on me to this day. Some kid chose a science experiment to measure the curvature of the Earth. He lived near a mountain. Some 200 miles away was another mountain. He hypothesized from geometry that he would be able to see the distant mountain if he climbed the near one. One Saturday he sets out to climb the neighboring mountain. Half way up he stops to rest, sits down and looks around. To his great surprise, he sees his distant target mountain in full glory. This cannot be! But he honors his data, goes back to class and makes his oral report and concludes that the “Earth must be flat!” Naturally, he is ridiculed. People say he could not have seen what he saw. He knows what he saw and sticks to his guns. I don’t remember the story details of how, but the answer of course is that thanks to different air temperatures and densities, light between mountains doesn’t travel in straight lines, but is bent by refraction around the curvature of the earth through a diverse and non-uniform medium, the atmosphere.
Report what you see. Adjust theory to fit the facts. Don’t adjust facts to fit theory. I which I knew the Title and Author of the short story. That author made a difference.

Quinn

Jeff Wood:
See this:
http://en.wikipedia.org/wiki/Astronomical_seeing
Astronomers deal with the same issue. Some nights, the atmosphere is relatively quiet, and astronomers enjoy good “seeing” conditions. Most nights they are not so fortunate.
Some large telescopes at observatories have “adaptive optics” in which the telescope mirror is mounted on a series of actuators, and small (sub-micron) distortions of the mirror’s surface can correct for the distortions in real time.
The main reason (only reason?) for putting the Hubble telescope in orbit was to get above the atmosphere.

S. Meyer

A friend of mine, in Germany, made me aware of this:
http://www.bbc.co.uk/news/uk-england-derbyshire-16833204
A “wind harvester”, apparently a new type of wind turbine, which can function at low and high wind speeds, can be scaled down to fit on a roof, and is less likely to kill birds. Any thoughts?

jorgekafkazar

pat says: watch your pensions, folks:
15 Feb: Bloomberg: Sally Bakewell: Canadian Pension-Backed Group Plans Wind Power for Prison
Too late.

D.B. Stealey

From Heartland:
Why Isn’t Peter Gleick In Jail?
Good question.

@Jeff Wood
February 15, 2013 at 2:03 pm
Actually, What you are looking at is a Doppler effect, if the lights you are looking at are flickering at 50hz this means they will turn on and off 50 times a second, you wont notice this flicker until you travel some distance away from the lights, at about 10 miles from the lights the flicker appears to slow down. As there is a mixture of lights with different frequencies in a distant village the flicker will appear to make the lights dance about.

Legatus

Twinkling lights from further villages, the solution is simple, use ‘simple’ logic!
The stars twinkle.
The stars are millions of miles away.
The further villages twinkle.
Conclusion, the problem is your map, these villages obviously must be millions of miles away.
Logic makes things so much easier 🙂

rogercaiazza

Jeff Wood – look up scintillation. Specifically terrestrial. The explanations above are what is going but the word is scintillation.

Theo Goodwin

pat says:
February 15, 2013 at 2:44 pm
“15 Feb: BBC: Italy makes ‘Mafia’ arrests over Sicily wind farms
Police have arrested five people in eastern Sicily suspected of involvement in Mafia corruption over contracts to build wind farms, Italian media report.
The mayor and a councillor in the small town of Fondachelli Fantina, in Messina province, were among those detained.”
This should be a new golden age for mafias wherever they are located. When government bucks are flowing like rivers with no accountability, mafia with buckets line the rivers.

D.B. Stealey

Open Thread, misc. info:
Dilbert must work at GISS
Don’t fool with Mother Nature
She’s got a cute young ass
Pick two
How cold is it?
On the bright side, not as permanent as a tattoo
You think you’re talented?
GW skepticism chart
Climategate, Harry_read_me file
Models, climatologist’s vs engineer’s
RyanAir CEO quote
Environmentalists’ vision of the future
California’s Senator vs a 6-year old
So that’s how it works

Horse

Jeff Wood says:
February 15, 2013 at 2:03 pm
There is a fair range of people who hang out here, and I wonder if one will put down his or her glass for a moment to explain something that has puzzled me a long time.
Taken to extremes, but look at the visual effect of the exhaust gases on the red an white stripes of the berm. You’re seeing heat rising.
https://picasaweb.google.com/FZ750Horse/ThunderbikeUKBrandsGP15th16thMay2010#5480109306993586018

Here is a proposal to discuss: Mandate that all climate models run on computer centers powered by the Wind.. hehe

@ Pat 2:245
‘To be sure, people want a source for green products and services’
I first read ‘To be sure, people want a source for green prophets and services’

clipe
KevinK

@ Jeff Woods;
The answers about variations in refractive index are correct, scintillation, or “seeing conditions” are the terms used. And some large telescopes do correct for this with adaptive optics.
Without going into too much detail, Earth imaging satellites do not suffer (as much) from this effect. That’s why satellite images you see are generally “crisp”. And yes one of the main reasons the Hubble is in space is to avoid these effect, at the time it was developed the adaptive optics technology was not as robust as it is now.
It is not exactly a Doppler effect (a moving object pushes waves (light or sound) ahead of it thereby compressing them), rather the changes in refractive index change the speed at which the light travels. These changes are on the order of a few hundred Hertz. The light frequency is in the Terahertz range and your eye cannot respond quickly enough to detect that.
Differences in the refractive index (warm air and cold air boundaries) “steer” (Snell’s Law) some of the light away from the straight line it would otherwise take. Thus more/less light arrives at your destination and you perceive this as “twinkling”. If the refractive index changed uniformly you would only see the light arrive slightly delayed (or sped up) and you would have no way to discern that.
And yes, when conditions are just right you can see farther distances (the other mountain) than normally. I live on the southern shore of Lake Ontario (We call it the North Coast of the USA) and a few times a year when the water and air temperature conditions are just right we can see lights from the town on the other side of the lake (36 miles away). Sometimes it’s clear enough to make out flashing red warning lights on the top of radio antennas and car headlights approaching the lake shore, turning and then driving along the road paralleling the shoreline.
With interferometry techniques it is possible to measure the “Optical Path Difference” between an optical path in air and another parallel path in a vacuum. Thus it is possible to measure changes in the refractive index of air. I varies with temperature, pressure and humidity.
Dust will also disperse varying amounts of the light and cause the received intensity to “twinkle”, but it’s generally a much slower effect, unless there is a dust storm.
Both of these effects get larger with increased distance.
Cheers, Kevin.

Mushroom George

I would sure appreciate someone to bringing us up to date on Jaxa’s Ibuki gosat observtions http://www.jaxa.jp/projects/sat/gosat/index_e.html

talldave2

I posted a couple dozen articles/studies in the comments to that Guardian piece. They were shocked to find out their own side is spending orders of magnitude more to promote AGW than the “dark money” the article cites. It’s also fun to ask them why the temperature for 1936 keeps changing, or why IPCC models can’t do better than a random walk.
The answer seems to be “but… but… consensus!” You can’t explain the difference between “science” and “the opinions of scientists about a certain set of predictions” to these people.

Chuck Nolan

Theo Goodwin says:
February 15, 2013 at 4:52 pm
pat says:
February 15, 2013 at 2:44 pm
“15 Feb: BBC: Italy makes ‘Mafia’ arrests over Sicily wind farms
Police have arrested five people in eastern Sicily suspected of involvement in Mafia corruption over contracts to build wind farms, Italian media report.
The mayor and a councillor in the small town of Fondachelli Fantina, in Messina province, were among those detained.”
This should be a new golden age for mafias wherever they are located. When government bucks are flowing like rivers with no accountability, mafia with buckets line the rivers.
——
I believe the US mob leaders all hail from Chicago.
Go figure.
cn

tobias

@S Mosher please include the electricity in the buildings they work in, especially elevators, climbing a few stairs to get to work every morning might clear their minds a bit,.
And BTW my wife and I have done observations for our gov on a Stephenson screen for decades the info is now computerized and available to anyone on “Cooltap” from the Canadian gov. It covers most of Canada although it is a fairly new and has not got a lot of historical data.
I have to add our yard has not changed other than removing all the black top to get a more “natural” reading 🙂 🙂 ( our house is in the middle of an orchard and has been the location for the screen for 50 years!!!

DocMartyn

I have an observation and a few questions.
I have seen quite a few electrical furnaces that were used for annealing steel coils. The steel would be heated to red hot, then allowed to cool. Looked into such furnaces at the steel makers where my father worked many times.
I have never seen red hot air. Why isn’t the air in the furnace heated by bouncing of the walls of the steel to red hot?
How can I see red hot air?
Lets say I take 20 meter pipe, half a meter in diameter and with a 1o centimeter diameter hole all through. I surround in heating coils and heat the whole length to red hot. Looking down the length, will I see red hot air? If not, why not?
Now don’t do the flame thing, most of the red/orange of flames comes from heating carbon particles.

tobias

@clipe Just read the article. My question to the researcher would be where does your satellite get the delta V (if that is the correct term) force from to change it’s own orbit to mach the velocity of the asteroid in the first place? And how many “twin” satellites do you have to launch to put up any kind of “umbrella” to protect the planet? As today’s totally unexpected event shows we are at least decades away from satellites to protect us, I feel some kind of beam weapon would be more practical ( maybe Reagan’s “Star Wars” was not far of in it’s concept).

Many of you may be familiar with the works of George Orwell. You might know of 1984 and Animal Farm or seen a movie of one of the works. But if it has been a long time since you actually read both works, particularly if you were relatively young and in college and are now in your 40’s or older, I would suggest you re-read both works, particularly 1984. Reading them from the perspective of age and experience reveals things in a completely different context, particularly in this day and age.

Randall_G

Well, I tried to open up an OIMAB (Off Impact Area Betting) website on several domains and was promptly shut down, placed in moderation, banned and turned in to various government agencies, so that idea ain’t going nowhere. So I’ll simply ask the questions here:
What is coming out of the Russian meteorite craters (or lake bed) and how soon?
Section I
1. Green Climate Change Fanatics.
2. Alien Green Climate Change Fanatics.
3. Green Lefist Alien Climate Change Fanatics.
4, High Fiving White Guys including Bill Nye.
5. Zombie earthworms.
6. Zombie escargot.
7. Body snatching Environmentalists.
8. Triffids with attitudes.
9. Martian Department of Vehicle Registration with citations for unlicensed rovers.
10. Other.
Section II
1. Today.
2. Tomorrow.
3. The Day After Tomorrow.
4. Soon.
5. Not soon enough.
6. Before you read this.
7. Right after you read this.
8. They are already here…..aaargh…ackkk!

RACookPE1978

OK, I’ll bite – Since I’ve never done orbital change calculations.
1) Assume a empty but fully tested and ready-to-fill Saturn 5 on the launch pad. A 5, 50 or 500 ton asteroid is discovered coming in at nominal velocity, and will impact earth in 60 days.
How far out must the Saturn 5 hit the asteroid to give it enough delta v to miss the earth?
If that doesn’t work – which is likely seeing that the moon-trajectory mass of Apollo 11 was much smaller than the earth-launched mass – assume a fully loaded and prepped Saturn 5 in earth orbit. Could IT be sent to impact a 5, 50 or 500 ton asteroid far enough out to force a miss?
Why do the “scientists” studying asteroid impact missions ALWAYS reject nuclear blasts that would break up the asteroid/comet – so at least SOME of the asteroid/comet would miss earth, and do they think they can invent some drive or “anchor” on a spinning irregular mass of rock that would let them “propel” it to a different orbit?

OssQss

Considering an open thread ~ Meteors matter eh?
Kinda put me back in place for a minute!

D.B. Stealey

crosspatch,
That reminded me of this interesting picture. ☺

KevinK

@DocMartyn;
Well, the steel is by its nature comprised of a lot of molecules with different sizes (iron in different forms, carbon, etc.). So when it vibrates it can give off light at many wavelengths. The peak wavelength is the “red hot” temperature (1000 degrees F or thereabouts). The air is comprised of only a few different molecules (Nitrogen and Oxygen mostly) and the spacing between these is much smaller and more uniform. The gases are also radiating but in a much more narrow band at a longer wavelength, beyond the visible spectrum. So they are also “hot” and radiating, but at a non-visible wavelength, like an invisible (to the human eye) “red hot”. IR viewing cameras can see it.
This is a bit simplistic, and I’m sure some folks may disagree, but everything is radiating all of the time and the wavelengths are determined by the molecule size(s). We have just evolved to see the most useful temperatures to survive.
Did you know that some small mammals (voles, etc.) have evolved so that their urine does not reflect in the visible spectrum? It’s only visible in the Ultraviolet spectrum. And some small hawks (Kestrels) have evolved to be capable of seeing UV light. That way they can track the trails that their prey are using and find a meal quicker.
Cheers, Kevin.

KevinK

@DocMartyn;
Also the thermal capacity of the air is much lower than the steel, so there is much less energy in the air. So the intensity of the radiated energy is much less, but it is radiating just the same.
Kevin.

The Man-Made Global Warmists never thought they would have to deal with None of their alarmists predictions coming true. Thank you Solar Cycle 24.

How far out must the Saturn 5 hit the asteroid to give it enough delta v to miss the earth?

That assumes it is one solid object. I believe that most are not. The one that hit Brazil in the 1930’s appears to have been at least three major pieces and probably several smaller ones. If you look carefully at impact craters on places like the moon, Mercury, and Mars you will notice that there actually seem to be in many cases two and once in a while three impact craters in a line. Once the object gets close enough, gravitational forces cause the objects to disassociate and it comes apart. Also, the object is likely spinning, so getting a grip on it is probably impossible until it is de-spun. I often hear farfetched ideas such as painting one side black or white … which does no good for an object that is rotating.
Also, if you look at places with a lot of craters, you will see a large number of craters at the poles, too. Not all of the impacts come from the ecliptic but that is about the only area where we look. We could have had several unnoticed close misses that we haven’t noticed from objects coming in perpendicular to the ecliptic plane. Chances are that is going to be the direction from which we are hit that causes the most damage. We are going to find something approaching Earth from due North or due South and we won’t even notice it until it is too late.
Oh, and I always have fantasized about doing a novel where a Jupiter sized object that has been cast out of another solar system flies through ours but comes from a direction perpendicular to the ecliptic. We think it is a comet at first … until we realize just how absolutely huge the thing is.

Kevin Kilty

S. Meyer says:
February 15, 2013 at 3:52 pm
A friend of mine, in Germany, made me aware of this:
http://www.bbc.co.uk/news/uk-england-derbyshire-16833204
A “wind harvester”, apparently a new type of wind turbine, which can function at low and high wind speeds, can be scaled down to fit on a roof, and is less likely to kill birds. Any thoughts?

We have a local company that builds a different low elevation design; however, any design that is situated near ground has the disadvantage that airflow near ground is substantially slower than higher up. Power available is proportional to velocity cubed–the problem ought to be apparent.

Kevin Kilty

S. Meyer. and S.
Mosher.
Meyer’s wind turbine ought to the mandated design to run the climate models.

farmerbraun