Robber fly - Nature photographer Thomas Shahan specializes in amazing portraits of tiny insects. It isn't easy. Shahan says that this Robber Fly (Holcocephala fusca), for instance, is "skittish" and doesn't like its picture taken.

Eye-popping bug photos

Nature by Numbers (Video)

"A Summary" – Apr 2, 2011 (Kryon channeled by Lee Carroll) (Subjects: Religion, Shift of Human Consciousness, 2012, Intelligent/Benevolent Design, EU, South America, 5 Currencies, Water Cycle (Heat up, Mini Ice Ace, Oceans, Fish, Earthquakes ..), Middle East, Internet, Israel, Dictators, Palestine, US, Japan (Quake/Tsunami Disasters , People, Society ...), Nuclear Power Revealed, Hydro Power, Geothermal Power, Moon, Financial Institutes (Recession, Realign integrity values ..) , China, North Korea, Global Unity,..... etc.) -
"The Quantum Factor" – Apr 10, 2011 (Kryon channeled by Lee Carroll) (Subjects: Galaxies, Universe, Intelligent design, Benevolent design, Aliens, Nikola Tesla (Quantum energy), Inter-Planetary Travel, DNA, Genes, Stem Cells, Cells, Rejuvenation, Shift of Human Consciousness, Spontaneous Remission, Religion, Dictators, Africa, China, Nuclear Power, Sustainable Development, Animals, Global Unity.. etc.) - (Text Version)

“ … Here is another one. A change in what Human nature will allow for government. "Careful, Kryon, don't talk about politics. You'll get in trouble." I won't get in trouble. I'm going to tell you to watch for leadership that cares about you. "You mean politics is going to change?" It already has. It's beginning. Watch for it. You're going to see a total phase-out of old energy dictatorships eventually. The potential is that you're going to see that before 2013.

They're going to fall over, you know, because the energy of the population will not sustain an old energy leader ..."

(Live Kryon Channelings was given 7 times within the United Nations building.)

"Update on Current Events" – Jul 23, 2011 (Kryon channelled by Lee Carroll) - (Subjects: The Humanization of God, Gaia, Shift of Human Consciousness, 2012, Benevolent Design, Financial Institutes (Recession, System to Change ...), Water Cycle (Heat up, Mini Ice Ace, Oceans, Fish, Earthquakes ..), Nuclear Power Revealed, Geothermal Power, Hydro Power, Drinking Water from Seawater, No need for Oil as Much, Middle East in Peace, Persia/Iran Uprising, Muhammad, Israel, DNA, Two Dictators to fall soon, Africa, China, (Old) Souls, Species to go, Whales to Humans, Global Unity,..... etc.)

"Recalibration of Free Choice"– Mar 3, 2012 (Kryon Channelling by Lee Caroll) - (Subjects: (Old) Souls, Midpoint on 21-12-2012, Shift of Human Consciousness, Black & White vs. Color, 1 - Spirituality (Religions) shifting, Loose a Pope “soon”, 2 - Humans will change react to drama, 3 - Civilizations/Population on Earth, 4 - Alternate energy sources (Geothermal, Tidal (Paddle wheels), Wind), 5 – Financials Institutes/concepts will change (Integrity – Ethical) , 6 - News/Media/TV to change, 7 – Big Pharmaceutical company will collapse “soon”, (Keep people sick), (Integrity – Ethical) 8 – Wars will be over on Earth, Global Unity, … etc.) - (Text version)

“… 4 - Energy (again)

The natural resources of the planet are finite and will not support the continuation of what you've been doing. We've been saying this for a decade. Watch for increased science and increased funding for alternate ways of creating electricity (finally). Watch for the very companies who have the most to lose being the ones who fund it. It is the beginning of a full realization that a change of thinking is at hand. You can take things from Gaia that are energy, instead of physical resources. We speak yet again about geothermal, about tidal, about wind. Again, we plead with you not to over-engineer this. For one of the things that Human Beings do in a technological age is to over-engineer simple things. Look at nuclear - the most over-engineered and expensive steam engine in existence!

Your current ideas of capturing energy from tidal and wave motion don't have to be technical marvels. Think paddle wheel on a pier with waves, which will create energy in both directions [waves coming and going] tied to a generator that can power dozens of neighborhoods, not full cities. Think simple and decentralize the idea of utilities. The same goes for wind and geothermal. Think of utilities for groups of homes in a cluster. You won't have a grid failure if there is no grid. This is the way of the future, and you'll be more inclined to have it sooner than later if you do this, and it won't cost as much….”

"Fast-Tracking" - Feb 8, 2014 (Kryon Channelling by Lee Carroll) - (Reference to Fukushima / H-bomb nuclear pollution and a warning about nuclear > 20 Min)

Obama unveils landmark regulations to combat climate change

Obama unveils landmark regulations to combat climate change
In a bid to combat climate change, US President Barack Obama announced the Clean Power Plan on Monday, marking the first time power plants have been targeted by mandatory regulations on carbon dioxide emissions in the US.
Google: Earthday 2013

Wednesday, January 23, 2013

Scientists race to develop floating wind farms

Deutsche Welle, 23 January 2013

In order to take advantage of high wind speeds on the open seas, the race is on to create wind turbines and wind farms that float on the surface of the water. But, the jury is still out on which is the best method.

Erecting a wind turbine in the middle of the ocean is a costly and time-consuming business. Most importantly, the structure must be anchored at the bottom of the sea to ensure its stability in the face of extreme wind and rough seas. The project is normally only feasible up to depths of 50 meters of water.

But, a new generation of wind turbines no longer has that problem. Mounted on pontoons which are attached to the ocean floor by long steel cables, floating wind turbines are now the new trend in the renewable energy scene. First prototypes are already being tested.

A floating tower

The world's most advanced floating wind turbine has floated in the North Sea off Norway since 2009. It's called the Hywind turbine, and looks like a kind of giant, bottle-shaped buoy. The tower with the rotor blades at its tip rises high into the air, while the body of the turbine is settled deep in the ocean, weighed with cement ballast. This gives it the stability it needs to stay upright in heavy weather.

The "Hywind" floating wind turbine,
with its cement ballast
But it's not the only way of producing a floating wind turbine. The alternative to a floating buoy like Hywind, is a floating island. Windfloat, installed off the Portuguese coast in 2011, is a turbine mounted on a large triangular base, with three separate floating corner pontoons.

Sweden's Hexicon firm has ambitious plans. They want to design a pontoon that measures half a kilometer in length, scheduled to carry 24 turbines. It's a floating wind park complete with its own power station.

Safely moored

With all of the options, cables tether the installations to concrete blocks on the floor of the ocean. The companies involved say that the turbines can be based in waters that are up to 700 meters deep.

Frank Sandner, an engineer at the University of Stuttgart, says the technology has massive potential. "Many countries all over the world have steeply sloping coasts," he told DW. "Floating wind turbines are the only chance to utilize the wind energy out on the ocean."

An additional advantage of floating wind parks is the cost. The rotor blades are mounted on land, in a dry dock, before the installation is towed offshore. That means there is no need for costly construction work on the high seas.

There are, however, disadvantages. Like a ship, the floating turbines rock and heave on the waves. In principle, the solution to that problem is simple – make the device heavier so that it less susceptible to waves. That calls for an extremely large amount of material, Sandner says. "With the current cost of steel, that would be much too expensive."

Engineers are working on alternative solutions to get around the extra material costs. Intelligent systems that would pump ballast water from one tank to the next to stabilize the wind turbine or the option of tightening the cables that moor the structure to stabilize it in heavy seas.

No even keel

No matter what tricks engineers come up with - they will never succeed in stabilizing the floating turbines to an extent that they stand completely rigid and fixed. They will always rock.

"In the swell of the waves, the installations can easily tilt by up to 15 degrees," according to Andreas Heege, the director of Barcelona-based LMS Samtech, a company that produces specialized wind power software. He adds that today's generation of wind turbine rotor blades are not designed to function in those sort of conditions.

Windfloat is a three cornered pontoon island, that floats on the surface
of the sea

Exposed to constant motion, floating wind turbines experience much more wear and tear than fixed offshore facilities. The rocking motion also interferes with power generation. When the installation reels into the wind it is hit by significantly stronger winds than just a moment later, when it rocks back into the other direction. "The result is erratic power generation that we have to balance by carefully adjusting the rotor blades," Heege said.

One thing is clear. Mounting a regular wind turbine on a pontoon is not likely to function. Engineers will have to develop new, specialized rotor blades.

Economic feasibility at issue

Which of the two different concepts currently being tested – either the turbine weighted with ballast or the floating wind park island – will win the race is not yet settled. Both prototypes are doing quite well, Frank Sandner said. "Which concept is superior has not yet become apparent."

In both cases, the most important question is commercialization. That means, which is of the turbines can be produced reliably and at low cost. Experts say the structures would have to be more slender than at present, using much less material - which in turn would threaten stability.

It is akin to a tightrope act, said Andreas Heege: "To make the proposition profitable, we will have to push ourselves to our technological limits."

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