View allAll Photos Tagged polygon
I've got a lot of different salt polygon pictures from Death Valley! Here's one taken before sunrise, with the crescent moon setting behind the Amargosa Range. The colors here are good, but about 10 minutes after this shot, the colors were amazing (I'll post the picture within the next several weeks). These were the best polygons I could find anywhere in the valley, even after extensive searching. Before the trip, I naively assumed that the salt polygons were easy to find year-round, because of the abundance of pictures around the internet. Wrong! Apparently recent rains destroyed the easily-accessible shapes. I hiked around Badwater Basin and also down to Cottonball Basin, with no luck (these were the 2 spots that most people indicated for salt shapes). My last shot was to explore north of the West Side Road, and with some serendipity I happened across these polygons!
Death Valley itself is really amazing. The bedrock beneath the Amargosa and Panamint Mountains folds beneath the basin, and over time thousands of feet of sediment has collected. The use of gravimeters has shown that the bedrock is more than 9000 ft beneath Badwater Basin, with layers of salt, silt, clay, and dirt filling up the space. Death Valley is actually a basin - water comes in, but doesn't exit; thus, huge amounts of sediments collect here.
Handmade mixed-media abstract art created mostly with colored pencils, watercolor colored pencils, and clear blenders.
I also used permanent markers and ball-point pens.
Completed Nov 3, 2019
Matted to 11X14 inches
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In Explore, Jan 12, 2021
Thank you, everyone, for views, faves and comments.
Polygons are of great interest because they often indicate the presence of shallow ice or of desiccation such as in a mud flat. However, Nature sometimes seems too clever for us.
Polygons form by the intersecting ridges of sand dunes. If this deposit were to become indurated and eroded, we might not be able to tell that they originated as wind-blown dunes, and interpret the polygons as evidence for a dried-up lake, for example. Dunes often accumulate in the bottoms on craters, also a good setting for a (temporary) lake.
The illumination is coming from the upper left, so the bluish ridges are high-standing.
Enhanced color image is less than 1 km (under a mile) across and is 252 km (157 mil) above the surface. For full images including scale bars, visit the source link..
www.uahirise.org/ESP_031138_1380
NASA/JPL/UArizona
The Comma is a fascinating butterfly. The scalloped edges and cryptic colouring of the wings conceal hibernating adults amongst dead leaves, while the larvae, flecked with brown and white markings, bear close resemblance to bird droppings.
The species has a flexible life cycle, which allows it to capitalize on favourable weather conditions. However, the most remarkable feature of the Comma has been its severe decline in the twentieth century and subsequent comeback. It is now widespread in southern Britain and its range is expanding northwards. butterfly-conservation .org
Das Saarpolygon in Ensdorf (Saar) ist ein Denkmal zur Erinnerung an den im Juni 2012 endgültig beendeten Steinkohlebergbau im Saarrevier.
Das Saarpolygon steht auf der Bergehalde Duhamel in Ensdorf, der Bergehalde des Bergwerks Saar. Diese Halde mit einer Grundfläche von rund 50 Hektar erhebt sich rund 150 Meter über das umliegende Saartal. Auf Grund der exponierten Lage ist das Polygon weithin aus allen Himmelsrichtungen sichtbar.
Das begehbare Denkmal ist rund 30 Meter hoch. Zu dem rund 35 Meter überspannenden Querstück führen von beiden Seiten genau 132 Stufen in 25 Meter Höhe. Die Aussichtsplattform wiegt rund 60 Tonnen. (Wikipedia)
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What the opposing angles fail to realize is nothing would be possible without the holding foundation.
A Polygon derives from the greek word meaning many sides and is considered to be an unbounded sequence, or circuit of alternating segments (sides) and angles (corners).
The modern mathematical understanding of a Polygon is to describe this structural sequence in terms of an 'abstract' polygon which is a partially-ordered set (a poset) of elements.
The interior body of the Polygon is an entirely other element; and for complicated technical reasons so is the null polytope or nullitope - but that is for another future series.
Engineering as Art
Greek Mythology
Series 5 of 5
This twelve sided barn was built in Mystic Quebec, Canada, by Alexander Wallbridge in 1892. Suspended from the top of the barn's conical ceiling, the original mechanism for rotating a large turntable in the centre of the barn is still in place. The turntable, much like the railroad turntables of days gone by, enabled fully laden wagons to enter the barn and to be rotated to the appropriate storage bay, where they would then be unloaded. The building is now a museum.
Like many Commas, the Gray Comma is best identified with the ventral view which in its case is a cryptic charcoal gray pattern and accounts for the common name. They are very difficult to find when perched on a tree trunk or like this one, gathering nutrients from wet, muddy places. There is a striking difference when they open their wings to present the dorsal view which I also posted this evening and looks like the dorsal view of many of the Comma species.
Elk Island National Park. Edmonton, Alberta.
When the sun is in your frame it’s a good idea to use your live view on your LCD monitor to protect your eyes rather than looking through the viewfinder, especially if you are using a telephoto lens.
Lens Flare
Be sure to watch for lens flare when you are shooting directly into the sun. Lens flare is when the light hits your lens directly and reflects inside the lens causing bright streaks or polygonal shaped bright spots with rainbow colours to appear. This is not necessarily a bad thing but if you don’t like it you will need to shade your lens with a lens hood or your hand. Shading your lens is not usually possible when the sun is in your frame but you can reduce the lens flare by positioning yourself so the sun is partially behind an object
Badwater in Death Valley with awesome last bits of sunlight kissing the tops of the salt polygons. One of the hottest (in the summer) and lowest (-200 feet below sea level) places on earth. I can just imagine cooking eggs out here in August.... no salt needed :D
Thanks for Looking.
Chullpas at the archaeological site of Sillustani were constructed for veneration of a few elites buried in the tower. Tall masonry towers began to be constructed during the Inca dominance of the Titicaca region, but some were left unfinished. The builders stopped after completing five courses of this tower, leaving behind their construction ramp made of rubble and stabilized by a few large blocks that could later be carved into new courses of masonry. The ramps must have reached considerable lengths in order to reach the uppermost rows of the towers, which can exceed ten courses.
As it dries, clay shrinks. Tearing along the edges makes cracks that join neighboring cracks, creating polygons. Other cracks stop before joining, like punctuation marks.
These mud cracks on the Mojave Desert playa have a white surface. The cracks reveal underlying brown tones. The photo was taken from standing height.
The resulting pattern might be a good model for floor tiles.
Construit dans le dernier tiers du VIème siècle av. J.C. afin de soutenir la terrasse du temple dit "des Alcméonides".
Il s'étend sur près de 84 mètres d'Est en Ouest auxquels s'ajoutent 25 mètres sur le côté Est et 12 mètres au côté Ouest.
意外としっくりくるスツールが無かったので仕方なく自作しました。アニメはセット売りしてたのをリネームもせずにそのまま全部ぶちこんでおきました。ちなみに仕事中にモデリングしてやったぜ！
maps.secondlife.com/secondlife/Minnaloushe/55/88/30
そしてそれとはまったく関係なく、ななひらさんの素晴らしい歌声をご堪能ください。ｲｴｲｲｴｲ！
Camellia Feat. Nanahira ”ベースラインやってる？笑”