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Spearheads Tessellation
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Another older concept, although this one required a bit of new design work to finalize. Everything has to be precreased, which is really time-consuming, but the result is really interesting on both sides. I thought that the diagonal molecules look a bit like spearheads, hence the name.
32x32 grid.
Designed by me.
Folded out of an uncut 12" square of tant paper.
Prudhoe Bay Oil Field is a large oil field on Alaska's North Slope. It is the largest oil field in both the United States and in North America, covering 86,418 ha and originally containing approximately 25 billion barrels (4.0-109 m3) of oil. The amount of recoverable oil in the field is more than double that of the next largest field in the United States, the East Texas oil field. The oil itself lies in porous rock formations anywhere from 1,700 to 7,000 m below the surface. It rises to the wellhead under its own geologic pressure, so no pumping is required. The mixture of oil, gas and water coming to the surface gets separated in special gathering centers. All of the water and some of the gas is re-injected back into the ground to enhance the formation pressure. A fraction of the natural gas is used to heat all the buildings in Prudhoe Bay. The rest, an enormous amount, must simply be burned off. On March 2, 2006, a a large oil spill was discovered in western Prudhoe Bay. Up to 1,010,000 liter were spilled, making it the largest oil spill on Alaska's north slope to date. The spill was attributed to a pipeline rupture. Other environmental impacts of this huge oil field include fragmentation and disruption of America's formerly largest tundra wilderness area.
For any form of publication, please include the link to this page:
This photo has been graciously provided to be used in the GRID-Arendal resources library by: Peter Prokosch
The Lena delta is one of the largest still pristine river deltas in the world. Its many naturally meandering arms form a magnificent tree-like shape. And ice wedges in the fine sediments of the treeless tundra form regular polygons with small ponds. The whole of the Lena Delta area has been nominated as a UNESCO World Heritage Site. On August 12, 1996, the Russian Republic of Sakha (Yakutia) significantly expanded the Lena Delta state nature reserve. At 14,330 square kilometres, the Lena Delta reserve ("Zapovednik") was already one of the largest and most important nature reserves in the Arctic. With its new size of 61,320 square kilometres, the expanded Lena Delta Reserve is now the largest protected area in Russia and one of the largest on earth. It is, however, only a small part of Sakha’s “Gift to the Earth”. Sakha, a republic approximately the size of Western Europe, decided in 1994 to designate at least 20% of its territory as a nature reserve.
For any form of publication, please include the link to this page:
This photo has been graciously provided to be used in the GRID-Arendal resources library by: Peter Prokosch
Cosmonauts call it the "Polygon". Baikonur space launch complex.
Die Kosmonauten nennen es das “Polygon”. Weltraumbahnhof Baikonur.
Credits: ESA/NASA
269C4369
Not quite the first butterfly I've seen this spring as it was beaten to the willow tree by a Small Tortoiseshell a few minutes earlier. No decent pic of that one though.
So, I always wanted to try this, but it seemed really time consuming, and it was, but I'm happy with the result :D
The Lena delta is one of the largest still pristine river deltas in the world. Its many naturally meandering arms form a magnificent tree-like shape. And ice wedges in the fine sediments of the treeless tundra form regular polygons with small ponds. The whole of the Lena Delta area has been nominated as a UNESCO World Heritage Site. On August 12, 1996, the Russian Republic of Sakha (Yakutia) significantly expanded the Lena Delta state nature reserve. At 14,330 square kilometres, the Lena Delta reserve ("Zapovednik") was already one of the largest and most important nature reserves in the Arctic. With its new size of 61,320 square kilometres, the expanded Lena Delta Reserve is now the largest protected area in Russia and one of the largest on earth. It is, however, only a small part of Sakha’s “Gift to the Earth”. Sakha, a republic approximately the size of Western Europe, decided in 1994 to designate at least 20% of its territory as a nature reserve.
For any form of publication, please include the link to this page:
This photo has been graciously provided to be used in the GRID-Arendal resources library by: Peter Prokosch
16 c. ivory puzzle made with concentric polygons, Elfenbeinzimmer (Ivory Room), Neues Grünes Gewölbe (New Green Vault), Dresden castle museum, Germany
This is an inverted view looking up the wall to the ceiling of the Harpa Concert Hall in Reykjavik, Iceland. The walls have this 3D structure of facets leading up to the ceiling which again has segmented mirrors. I've taken this shot to create an artificial horizon at the point where they meet. The golden panel could almost be the sun in an abstract landscape shot. The architects and designers were Henning Larsen Architects and Olafur Eliasson. The structures are to represent the columns of basalt rock that are found in Iceland.
At 14,330 square kilometres, the Lena Delta reserve was already one of the largest and most important nature reserves in the Arctic. With its new size of 61,320 square kilometres, the expanded Lena Delta Reserve is now the largest protected area in Russia and one of the largest on earth. It is, however, only a small part of Sakha’s “Gift to the Earth”. Sakha, a republic approximately the size of Western Europe, decided in 1994 to designate at least 20% of its territory as a nature reserve.
For any form of publication, please include the link to this page:
This photo has been graciously provided to be used in the GRID-Arendal resources library by: Peter Prokosch
The Lena delta is one of the largest still pristine river deltas in the world. Its many naturally meandering arms form a magnificent tree-like shape. And ice wedges in the fine sediments of the treeless tundra form regular polygons with small ponds. The whole of the Lena Delta area has been nominated as a UNESCO World Heritage Site. On August 12, 1996, the Russian Republic of Sakha (Yakutia) significantly expanded the Lena Delta state nature reserve. At 14,330 square kilometres, the Lena Delta reserve ("Zapovednik") was already one of the largest and most important nature reserves in the Arctic. With its new size of 61,320 square kilometres, the expanded Lena Delta Reserve is now the largest protected area in Russia and one of the largest on earth. It is, however, only a small part of Sakha’s “Gift to the Earth”. Sakha, a republic approximately the size of Western Europe, decided in 1994 to designate at least 20% of its territory as a nature reserve.
For any form of publication, please include the link to this page:
This photo has been graciously provided to be used in the GRID-Arendal resources library by: Peter Prokosch
College M , Canada
Thanks for the views , comments and faves guys !
Merci pour les vues, commentaires et favoris a tous !
Si vous êtes intéressé a acheter certaines de mes photos , ne vous sentez pas gênés de m'envoyer un mail.... je vous indiquerai les prix en fonction de ce que vous voulez
If you are interested to buy some of my picture , feel free to send me a email , i will give you the prices , depending on what you would like
Please don't use this image on websites, blogs or other media without my explicit permission. © All rights reser
3-4-5-6 Flagstone Tessellation test 2 front
I have been very busy, but have still been working on a number of different origami projects as much as I have had time. This tessellation is one of them. A 32x32 grid does not even fully tesellate this pattern once, so I will have to make a larger one at some point in the future.
Designed by me.
Folded out of an uncut 8.5" square of copy paper.
Fort Cunningham, Paget Island, Bermuda.
A polygonal fort built to defend the channel into St Georges Harbour.
Work commenced to remodel it for the RML era in 1866.
It was the most heavily armed RML work in Bermuda.
It mounted two 9 inch, five 10 inch and two 12.5 inch RML guns .
The seven bigger guns are still there, having been dropped into the dry ditch when the fort was rearmed with 6 in Breech Loading guns in 1900s.
These guns are all RGF,
10in MkII 18 tons. Nos 338, 340, 342, 356, 357. 1878
12.5 in MkI 38 tons. Nos 87, 95. 1878
One of the most significant aspects of this fort is that it was built with two faces of iron armoured shields mounting the seven heavy guns.
These iron shields consist of a sandwich of layers of 5 inch thick plates separated by iron concrete amounting to over 24 inches thick backed by further plate, supporting girders and large triangular casings filled with concrete, all bolted together with 2 inch dia bolts.
The only other forts constructed with this extent of armour plating are the circular ones in the UK at Spithead, Portland and Plymouth Breakwater Forts, and armouring was required where forts might be attacked at close range by ships.
Unusually Cunninghams armoured shields are two straight continuous lengths but otherwise of similar construction to the circular UK ones, and mounted two guns and five guns in the two faces.
Also Cunningham, like Plymouth Breakwater Fort was fitted with small gun ports by the Inspector General of Fortifications, although the Director of Artillery did not want this, and faced with changing them afterwards, compromised by providing a special small port gun carriage to mount the guns and Cunningham was given priority.
Cunningham cost so much to build (virtually everything was shipped there from UK ) that one exasperated MP in Westminster stood up to ask “is Cunningham made of Gold” – I V Hogg
Very many thanks for the assistance of Bermuda Department of Youth, Sports and Recreation, Bermuda Police Service, and Outward Bound Bermuda.
Fort Cunningham is situated on Paget island and not open to the public and permission is needed to land on the island.
If you are interested in Bermuda Forts and their armament see
Bermuda Forts 1612 – 1956 by Dr Edward C Harris.
If you are interested in historic ordnance see the Ordnance Society Web Site
Wooden church of Rogoz, “Holy Archangels Michael & Gabriel”, built in 1663.
Historical Monument recorded as World Heritage Site, code 904
The church is located in Lapus Land, on the Lapus Valley and was built in 1663 by the village community, on the site of an older church burnt by Tartar invaders. In 1785 it was painted by the painter Radu Muntreanu and Nicolae Man. In 1834 a tribune was built on the west of the naos (inner chamber or nave), whose railing was painted in the same year, where the roof of the pronaos and the vault of the nave were being repainted, and were the windows also modified.
The church has a more rare type of pronaos (entrance / outter part) having a polygon plane, with access to the south, a rectangular nave and a retractable, polygonal 7-sided apse. Interior-wise, the master beams, main beams of the vault’s arches and the brackets are decorated with the motif of the rope.
The exterior of the church is richly decorated: the southern facade, in the medial zone, is decorated with the profiled motif of the rope; the entrance door in the church has an arch opening, and frames decorated with a simple double layer of rope and rosettes, on the left side there is a cross decorated with the same elements. The eaves are supported on consoles which end with a horse-head, and the beams under the eaves have creased edges. The roof is asymmetrical to protect the “table of elders’ along the northern facade. On top of the pronaos, rises the square bell tower, with the open bell tower chamber, within the console, formed by the assembly of poles and arches, and the pyramid high roof has corner turrets. The building’s Paintings contribute essentially to the special value of this monument. Being related to the iconography and style of Radu Munteanu’s work in Desesti-Maramures, the painting impresses with the decorativism of the ensemble, drawing with thick, even lines and bright chromaticity.
The church is located in the village cemetery, near to another wooden ‘church, brought here from Baita de Sus, (Maramures)
The Lena delta is one of the largest still pristine river deltas in the world. Its many naturally meandering arms form a magnificent tree-like shape. And ice wedges in the fine sediments of the treeless tundra form regular polygons with small ponds. The whole of the Lena Delta area has been nominated as a UNESCO World Heritage Site. On August 12, 1996, the Russian Republic of Sakha (Yakutia) significantly expanded the Lena Delta state nature reserve. At 14,330 square kilometres, the Lena Delta reserve ("Zapovednik") was already one of the largest and most important nature reserves in the Arctic. With its new size of 61,320 square kilometres, the expanded Lena Delta Reserve is now the largest protected area in Russia and one of the largest on earth. It is, however, only a small part of Sakha’s “Gift to the Earth”. Sakha, a republic approximately the size of Western Europe, decided in 1994 to designate at least 20% of its territory as a nature reserve.
For any form of publication, please include the link to this page:
This photo has been graciously provided to be used in the GRID-Arendal resources library by: Peter Prokosch
Larissa Kusudama 36 units
A new stellated edition to the Province Series, based on 15 degree angles. The locking mechanism is a three-step process which is quite sturdy, so I opted for an assembly which explored the range of possibilities for the unit. The truncated hexahedron with eight units joining around a face turned out perfectly. This is the 105th model in the Province Series.
Designed by me.
Folded out of 4.5" squares of pattern paper.
Forced Pinwheels Tessellation
back backlit
This is my first new legitimate project since the surgery. The central squares do not align with the surrounding irregular hexagons. I will try to put up a cp for it in a few days.
32x32 grid.
Designed by me.
Folded out of an uncut 12" square of tant paper.
The Lena delta is one of the largest still pristine river deltas in the world. Its many naturally meandering arms form a magnificent tree-like shape. And ice wedges in the fine sediments of the treeless tundra form regular polygons with small ponds. The whole of the Lena Delta area has been nominated as a UNESCO World Heritage Site. On August 12, 1996, the Russian Republic of Sakha (Yakutia) significantly expanded the Lena Delta state nature reserve. At 14,330 square kilometres, the Lena Delta reserve ("Zapovednik") was already one of the largest and most important nature reserves in the Arctic. With its new size of 61,320 square kilometres, the expanded Lena Delta Reserve is now the largest protected area in Russia and one of the largest on earth. It is, however, only a small part of Sakha’s “Gift to the Earth”. Sakha, a republic approximately the size of Western Europe, decided in 1994 to designate at least 20% of its territory as a nature reserve.
For any form of publication, please include the link to this page:
This photo has been graciously provided to be used in the GRID-Arendal resources library by: Peter Prokosch
Located in the square just inside Pile Gate, this polygonal fountain was city's water supply system where it brought in water from the River Dubrovacka some 20km away.
To view & purchase my best images please visit my website at www.jasonwells.co.uk.