Wednesday, November 13, 2013

Looking for tomorrow's power source? Go fly a (underwater) kite

The underwater kite was included in Time magazine's 50 Best Inventions in 2010.
It was also the only invention to make the 2011 list of Top 15 Utility Solutions compiled by the Clean Technology and Sustainable Industries Organization.

From Discovery

A Massachusetts research program just got a nice big grant from the National Science Foundation to work on harnessing ocean currents and tidal flows using underwater kites.
The potential: Power equal to about 10 nuclear power plants.

This kite-flying is being led by David Olinger, an associate professor of mechanical engineering at Worcester Polytechnic Institute specializing in wind and wave turbines.
In the past, he and his students developed a very inexpensive kite-powered water pump for developing nations.
Now he’s looking to create small tethered, undersea kites that can “fly” quickly in currents.
The NSF recently awarded Olinger’s new research program $300,000, WPI reported.

This is David Olinger, associate professor of mechanical engineering at Worcester Polytechnic Institute, with a rig that uses a rocking arm to translate the motion of wind-powered kite into rotary motion to spin an electric generator or power a device like a water pump. With an award from the National Science Foundation, Olinger is currently exploring the use of underwater kites to generate power from currents and tidal flows. Credit: Worcester Polytechnic Institute

Read more at: http://phys.org/news/2013-11-tomorrow-power-source-underwater-kite.html#jCp
This is David Olinger, associate professor of mechanical engineering at Worcester Polytechnic Institute, with a rig that uses a rocking arm to translate the motion of wind-powered kite into rotary motion to spin an electric generator or power a device like a water pump. With an award from the National Science Foundation, Olinger is currently exploring the use of underwater kites to generate power from currents and tidal flows. Credit: Worcester Polytechnic Institute

Read more at: http://phys.org/news/2013-11-tomorrow-power-source-underwater-kite.html#jCp
This is David Olinger, associate professor of mechanical engineering at Worcester Polytechnic Institute, with a rig that uses a rocking arm to translate the motion of wind-powered kite into rotary motion to spin an electric generator or power a device like a water pump.
With an award from the National Science Foundation, Olinger is currently exploring the use of underwater kites to generate power from currents and tidal flows.
Credit: WPI
Olinger cited the Gulf Stream, the massive underwater current flowing from the Gulf of Mexico into the Atlantic Ocean.
That power potential is estimated at about 20 gigawatts, or about 10 nuclear power plants. ”Just as wind turbines can convert moving air into electricity, there is the potential to transform these virtually untapped liquid ‘breezes’ into vast amounts of power,” he told WPI.

Starting in January, Olinger and his team will begin doing computer modeling to figure out how the kites should be tethered, where to put turbine-generators, what the environmental impacts could be and how to maximize power generation.
Finally they’ll build full-scale models to test in large water tanks at WPI and the Alden Research Laboratory nearby.

Minesto AB will be testing an underwater kite in the authentic environment outside the coast of Northern Ireland in 2011. 

Olinger’s system has similarities to the underwater kites designed by the Swedish company Minesto, he told me.
However, Minesto plans to tether the kites to the ocean floor while Olinger’s group would attach them to a floating system.


Each Minesto’s kite also has a wind turbine attached while Olinger will look at potentially removing the turbine and placing the electrical generator on the floating platform instead.

Flying kites underwater brought Charlie Brown images to mind, but I’m buoyed by the idea that the tech could be nimble, affordable and scalable without requiring ginormous turbines.
Plus the kites could be tethered to floating platforms like the ones already used for oil and gas rigs. Just pull them up if they need checking.
Then — bam! — they’re back in the sea.

Links :
  • Phys.org : Looking for tomorrow's power source? Go fly a (underwater) kite
  • Inhabitat : Minesto Unveils “Underwater Kite” That Harvests Clean Energy From Ocean Currents

Tuesday, November 12, 2013

US NOAA update in the Marine GeoGarage


20 charts have been updated in the Marine GeoGarage
(NOAA update October 2013)

  • 25640 ed45 Puerto Rico and Virgin Islands
  • 11507 ed30 Intracoastal Waterway Beafort River to St. Simons Sound
  • 17320 ed24 Coronation Island to Lisianski Strait
  • 11374 ed12 Intracoastal Waterway Dauphin Island to Dog Keys Pass
  • 11383 ed29 Pensacola Bay
  • 11384 ed38 Pensacola Bay Entrance
  • 12266 ed16 Chesapeake Bay Choptank River and Herring Bay; Cambridge
  • 13246 ed39 Cape Cod Bay
  • 13248 ed43 Chatham Harbor and Pleasant Bay
  • 13279 ed42 Ipswich Bay to Gloucester Harbor; Rockport Harbor
  • 14837 ed16 Fairport Harbor
  • 14843 ed34 Huron Harbor
  • 17404 ed44 San Christoval Channel to Cape Lynch
  • 17405 ed22 Ulloa Channel to San Christoval Channel;North Entrance. Big Salt Lake;Shelter Cove. Craig
  • 17406 ed38 Baker. Noyes. and LuluIslands and adjacent waters
  • 17434 ed40 Revillagigedo Channel;Ryus Bay;Foggy Bay
  • 11370 ed46 Mississippi River-New Orleans to Baton Rouge
  • 11502 ed36 Doboy Sound to Fernadina
  • 11520 ed18 Cape Hatteras to Charleston
  • 11534 ed52 Intracoastal Waterway Myrtle Grove Sound and Cape Fear River to Casino Creek
Today 1024 NOAA raster charts (2166 including sub-charts) are included in the Marine GeoGarage viewer.


How do you know if you need a new nautical chart?
See the changes in new chart editions.
NOAA chart dates of recent Print on Demand editions

Note : NOAA updates their nautical charts with corrections published in:
  • U.S. Coast Guard Local Notices to Mariners (LNMs),
  • National Geospatial-Intelligence Agency Notices to Mariners (NMs), and
  • Canadian Coast Guard Notices to Mariners (CNMs)
While information provided by this Web site is intended to provide updated nautical charts, it must not be used as a substitute for the United States Coast Guard, National Geospatial-Intelligence Agency, or Canadian Coast Guard Notice to Mariner publications

Please visit the
NOAA's chart update service for more info.

Sea orbiter, a Bond villain lair? No, this strange boat is a floating lab that will help marine biologists unlock the secrets of the world's oceans


Jacques Rougerie : the Eye of SeaOrbiter

From DailyMail

  • Construction on the marine research facility called SeaOrbiter is due to start by May 2014
  • Two-thirds of the 170-ft tall vessel will sit underwater to give it buoyancy and offer a direct line of sight to the ocean
  • Between 18 and 22 marine biologists will be able to study ecosystems and fish levels on board at any one time
  • The French-designed craft weighs 1,000 tonnes and will be powered by wind, wave and solar energy
It may look like something a Bond villain would conjure up as a base for their evil regime, but this research vessel set to be stationed in the middle of the ocean is actually a marine research facility.
Called SeaOrbiter, the floating aquatic lab has been designed by French architect Jacques Rougerie and construction is due to start in 2014.
Almost two-thirds of the 170-ft tall ship will sit underwater making it possible to directly study ecosystems and fish levels at great depths.


Sea Orbiter's vital statistics
  • French architect Jacques Rougerie designed the incredible structure.
  • A countdown on the SeaOrbiter site claims construction will start in 201 days, which would make the start 31 May 2014.
  • The project will cost $52.7 million and has support from Nasa and the European Space Agency because the conditions on the SeaOrbiter are similar to those found in space.
  • The 1,000 tonne vessel is 170ft tall but almost two thirds of this will be underwater,
  • Between 18 and 22 marine biologists will live on the hybrid boat laboratory.
  • It will be the only vessel allowing 24-hour exploration.
This diagram details the different features of the SeaOrbiter vessel.
This diagram details the different features of the SeaOrbiter vessel.
It has a platform lift for divers on the left-hand side, while stern thrusters power the ship.
Bunks for the crew as well as the VIP cabin and Captain's room are on the right-hand side.
The retractable keel weighs 180 tonnes

Between 18 and 22 marine biologists will be able to live on board the vessel at any one time because it has living quarters and kitchens.
The laboratory part of the 1,000-tonne ship will sit below the surface to make the SeaOrbiter buoyant, but to also give a direct line of sight and access into the ocean to depths of up to 6,000 metres.
According to Rougerie, the SeaOrbiter will additionally feature a ‘fish-collection system for studies of the pelagic ecosystem, plankton biodiversity, and fish stocks.’
Architect Rougerie developed the concept of the ocean lab around 12 years ago. He built his first underwater house on 4 August 1977.
In 1981 he launched the Hippocampe, a scientific base suspended in mid-water that slept two people.
The Hippocampe was capable of diving to depths of around 12 metres and could stay underwater for between seven and 15 days at a time.

Called SeaOrbiter, the 1,000-tonne floating aquatic lab, pictured, was designed by French architect Jacques Rougerie.
Called SeaOrbiter, the 1,000-tonne floating aquatic lab, pictured, was designed by French architect Jacques Rougerie.
Construction on the ship is due to start in May 2014.
Almost two-thirds of the 170-ft tall vessel will sit underwater making it possible to directly study ecosystems and fish levels.

The SeaOrbiter will feature a fish-collection system for studies of the pelagic ecosystem, plankton biodiversity, and fish stocks.
The SeaOrbiter, illustration pictured, will feature a fish-collection system for studies of the pelagic ecosystem, plankton biodiversity, and fish stocks.
The project costs $52.7 million and has support from Nasa and the European Space Agency because the conditions on the SeaOrbiter are similar to those found in space
Remarkable SeaOrbiter studies marine life in the open sea 24-7 

The project costs $52.7 million and has support from Nasa and the European Space Agency because the conditions on the SeaOrbiter are similar to those found in space.
A countdown on the SeaOrbiter site claims construction will start in 201 days, which would make the start 31 May 2014.
Rougerie said: ‘SeaOrbiter is the only vessel in the world allowing a 24-hour exploration on long-term missions of the open sea and the abyss.’

This computer generated image shows what the SeaOrbiter will look like underwater.
This computer generated image shows what the SeaOrbiter will look like underwater.
The French-designed ship will be able to explore depths of around 6,000 metres.
Between 18 and 22 marine biologists will live on board at any one time because it has living quarters and kitchens

This is how the SeaOrbiter is expected to look from the ocean floor.
This is how the SeaOrbiter is expected to look from the ocean floor.
The laboratory part of the ship, pictured, will sit below the surface to make the SeaOrbiter buoyant, but to also give a direct line of sight and access into the ocean

It is also environmentally friendly and sustainable because it is powered using solar, wind and wave energy.
Although the SeaOrbiter has been designed to drift with ocean currents, the European Defense and Space systems (EADS) is also said to be developing a biofuel that could be used as a secondary power source.
Previously Rougerie told Inhabitat that the SeaOrbiter: ‘would become an essential tool in exploring the world’s oceans and an useful base to study the link between global warming and the oceans, which absorb about a quarter of all carbon emissions.’

The SeaOrbiter vessel will be powered by wind, wave and solar energy.
The SeaOrbiter vessel, pictured, will be powered by wind, wave and solar energy. Although the SeaOrbiter has been designed to drift with ocean currents, the European Defense and Space systems (EADS) is also said to be developing a biofuel that could be used as a secondary power source

Links :

Sunday, November 10, 2013

Now that's living art: British sculptor's underwater creations are transformed by coral and sea-life off the coast of Mexico


From DailyMail

  • British sculptor Jason deCaires Taylor co-founded the Museo Subacuatico de Arte in Cancun, Mexico, in 2009.
  • Over the years he has installed more than 450 works of art in the underwater museum
  • Some sculptures are barely recognisable after coral, sea urchins and other marine life have made them their homes
Transformation: Jason deCaires Taylor's sculpture of Brian, the owner of a Harley Davidson showroom in Canada, has been taken over by marine life in the Museum of Subaquatic Art in Cancun, Mexico 

While most artists would be distraught at their work being vandalised, one sculptor believes the erosion of his underwater pieces by marine life has only made them better.
More than 450 figurative sculptures have been installed in the underwater museum, the Museo Subacuatico de Arte, since British sculptor Jason deCaires Taylor co-founded it back in 2009 off the coast of Cancun, Mexico.
But many of the artworks, all part of 'The Silent Evolution' project', are unrecognisable today after coral, sea urchins and other marine life have taken them over as their new home.
 
Underwater artwork: A sculpture based on a local school teacher called Veronica, pictured left, is now encrusted with coral and covered in sea urchins.

Pictured above is another piece from 'The Silent Evolution' project which has been transformed by sea-life over the years


New home: This work by deCaires Taylor is based on Paz, a local fisherman from Acapulco.
It is located 10 metres below the sea surface in the Museum of Subaquatic Art in Cancun, Mexico, and is now home to a vast array of sea-life
The 39-year-old said: 'When I place them underwater it is the beginning of their lifecycle. For me they only come alive when they have their underwater patina.
'They are made from inert cement but when you see the skin of capillaries and tubular networks of the marine life and sponges colonising them, it makes them feel immortal.'
The sculptures are all based on real-life people including Brian, the owner of a Harley Davidson showroom in Canada; Paz, a fisherman from Acapulco, Mexico; and Veronica, a local school teacher.
Over time the works have become encrusted with hundreds of luridly-coloured sea sponges, spiny sea urchins and marine plants called hydroids, capable of delivering a nasty sting when touched.


Coming to life: Jason deCaires Taylor believes the sculptures only come alive when they are covered in marine life


Life below the surface: 'The Anchors', a sculpture by Jason deCaires Taylor, sits in a bed of sea grass
The spiny sea urchins crawl across the faces of the sculptures, 10 metres below the surface, and provide a useful service to deCaires Taylor by eating the algae that can prevent coral from forming.
Asked if he has any plans to prune back the growth on his works to ensure they do not become obscured, the artist is resolute.
'No, the plan is leave them as they are,' deCaires Taylor said.
'The human figure is so embedded in our psyche that even a small reference to our anatomy helps us comprehend the artwork.'
Despite their foreboding appearance of the sculptures, deCaires Taylor says that to him they feel 'almost feel like family', although he admits that visitors to the museum are occasionally spooked.
'Some times people get a little scared, it depends on the conditions of the day,' deCaires Taylor said. 'If the water is clear with bright sun the figures have a slightly euphoric feel, other days when it is cloudy or the water murky the encounter can be quite startling.
'Each character has a unique story and it is very exciting for me watching nature take over.'


Under the sea: Jason deCaires Taylor's underwater sculpture 'Vein Man' at the Museo Subacu·tico de Arte.
Over time bright yellow fire coral will travel along the stainless steel lattice and look like blood through veins


Living art: An underwater sculpture by artist Jason deCaires Taylor, entitled 'Resurrection'.
The work uses live purple Gorgonian fan coral (Gorgonia flabellum), which had been displaced from the reef system in a storm


Man on fire: The artist's sculpture 'Self-Immolation', is made from black pH neutral marine cement, and depicts a solitary burning figure.
Over time it will be overrun with fast-growing, bright yellow live fire coral.


The artist is happy to abandon his works to the waves, but does acknowledge that there can be downsides to working in an underwater environment.
He said: 'Sometimes when diving at night my dive lights attract thousands of tiny swimming sea worms.
Recently one crawled inside my ear canal and felt like it had entered my brain.
'I was on my own at the time and found it quite disturbing, although fortunately after 20 minutes it found its way out!'
DeCaires Taylor has previously created a real life city of Atlantis, sunk a life-size sculpture of a Volkswagen Beetle and even a house.
He also unveiled a series of new sculptures last month including one called No Turning Back, a cement cast of a hunched-over woman, which alludes to the loss of Caribbean coral reefs, while another, Self-Immolation, depicts a solitary burning figure - a reference to the practice of setting yourself on fire as a form of political protest.
A real-life Atlantis: Stunning sculpture city under the sea off...


Talking art: 'The Speaker' stands in a bed of sea grass. The sculpture is planted with more than 200 cuttings of rare Acropora Prolifera coral


Stunning: The sculpture is planted with more than 200 cuttings of the rare Acropora Prolifera coral, in Cancun, Mexico


Prolific: DeCaires Taylor now has 510 sculptural works permanently on display at the site, many of which feature live coral


Latest additions: The 39-year-old unveiled a new series of works last month in the Museo Subacuatico de Arte, the subaquatic museum he co-founded back in 2009 off the coast of Cancun, Mexico

Made from black pH neutral marine cement, the work is augmented with stainless steel spines, and over time it will be overrun with fast-growing, bright yellow live fire coral which will mimic flames.
DeCaires Taylor said: 'I try to use the work to highlight the huge losses we're having and how our blue planet is changing quite dramatically.
'Future generations aren't going to see the same number of species and fantastic pristine reefs.
'But I want to balance that sadness - in order to inspire people, you have to offer them hope as well.'
Another of deCaires Taylor's sculptures is Resurrection, a winged angelic-looking figure, which uses live purple Gorgonian fan coral and had to be rescued after being displaced from the reef system and damaged during a recent storm.



Art with a message: A number of the new works deal with the devastation of the natural marine habitat



Natural subject: 'No Turning Back' in the Museo Subacuatico de Arte in Cancun, Mexico, a cement cast of a hunched-over woman, alludes to the tragic loss of Caribbean coral reefs
Artistic installation: One of the artist's latest sculptures is pictured being lowered down into the water at the submarine park


Last light: The sculpture gets one last glimpse of daylight before being completely submerged by the water
Getting wet: No turning back is carefully winched into the water and placed on a rock at the bottom of the ocean
Strong currents around the museum meant that the sculptures had to be craned from a bridge into a nearby canal and then toed out to the site.
The Dover, Kent, born artist said: 'Some of these were much more delicate than pieces I've made before, so it was difficult working in tough conditions.
'I had to box some of them up in crates and then sink them underwater in their crates. Believe me, taking a crate apart underwater is difficult.'
DeCaires Taylor now has 510 sculptural works permanently on display at the site, although these are his final additions for the time being as he prepares to relocate back to Europe.
However, the museum has been a huge success, receiving 250,000 visitors each year, and deCaires Taylor is trying to secure funding to eventually expand it to include 8,000 figures - more than the famous Terracotta Army.
He said: 'I'm leaving Mexico, but I've got this legacy here, that my daughter can come back in twenty years time and it will still be there.'
Some of his more creative works include a life-size version of a Volkswagen Beetle and an underwater 'city' of homes.



Hands on: Vein Man sticks out of the top of the water as it is lowered down by a crane hook, left, while artist Jason deCaires Taylor gets into the water himself to help lower one of his sculptures into place, right



Preparation work: Jason deCaires Taylor works on his sculpture 'Self-Immolation' in his studio in Cancun


Expanding: The museum has been a huge success, receiving 250,000 visitors each year, and deCaires Taylor is trying to secure funding to eventually expand the site to 8,000 figures

Links :
  • GeoGarage blog : Transcendent underwater sculpture acting as artificial reefs