Trees I Have Known
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Metal bridge over the Rio Pardo, designed by Euclides da Cunha.
Eight ways to conserve the Rio Pardo
Promote more green areas
Use water rationally
Garbage place is in the trash
Share this idea
Avoid indoor pollution
Protect animals from the river
Preserve the forest
Recognize its importance
Kurven - Curves
Was würde ich nur ohne Wikipedia machen, meine Frage: „was ist eine Kurve“ wird dort hinreichend beschrieben.
„In dem ersten Buch der Elemente von Euklid von Alexandria, ein griechischer Mathematiker und Archon der wahrscheinlich im 3. Jahrhundert v. Christus in Alexandria gelebt hat, heißt es: „Ein Punkt ist, was keine Teile hat. Eine Kurve ist eine Länge ohne Breite.“ und: „In der Mathematik ist eine Kurve ein eindimensionales Objekt, es muss einen gebogenen /gekrümmten Verlauf nehmen, auf dem man sich grundsätzlich nur in eine Richtung bewegen kann.“ Wikipedia
Aha, eine Kurve ist eindimensional, sie kann aber auch mehr dimensional sein, sie kann schmal oder auch breit ein. In den Alpen gibt es zum Beispiel: Haarnadelkurven im Straßenwesen sie sind Straßen die eine enge, U- bzw. V-förmige Kurve mit einem Winkel 150° bis 180° haben, die sogenannten Serpentinen oder Passwege die auf eine Pass und dann in ein anderes Tal abwärts führen. Danke an mein schlaues Team vonWikipedia
In meinem Haushalt gibt es viele Gegenstände mit Kurven, für welchen sollte ich mich entscheiden? Was liegt näher als ein Gegenstand der in der Fotografie Anwendung findet .
Ich habe mir den Fernauslöser eines Familienmitglieds ausgeliehen, ihn auf einer Spiegelplatte drapiert und mit unserem neuen Macrostativ aufgenommen. Wie immer wurden es viele Aufnahmen, hier nun das Foto für das ich mich entscheiden habe.
Ich wünsche Euch eine heitere und friedliche Woche, liebe Freunde. Seid herzlich bedankt für Euren Besuch, ein Kommentar und Stern freut mich immer!
What would I do without Wikipedia, my question: "what is a curve" is sufficiently described there.
"In the first book of the Elements by Euclid of Alexandria, a Greek mathematician and Archon who probably lived in Alexandria in the 3rd century BC, it says: "One point is what has no parts. A curve is a length without width" and: "In mathematics, a curve is a one-dimensional object, it must take a curved course, on which one can basically only move in one direction". Wikipedia
Aha, a curve is one-dimensional, but it can also be more dimensional, it can be narrow or wide. In the Alps, for example: Hairpin curves in the road system they are roads that have a narrow, U- or V-shaped curve with an angle of 150° to 180°, the so-called serpentines or pass roads that lead to a pass and then down into another valley. Thanks to my smart team from Wikipedia
In my household there are many objects with curves, which one should I choose? What could be more obvious than an object used in photography?
I borrowed the remote release of a family member, draped it on a mirror plate and took it with our new macro tripod. As always, there have been many photos, here is the photo I have chosen.
I wish you a happy and peaceful week, dear friends. Thank you very much for your visit, a comment and a star always makes me happy!
Que ferais-je sans Wikipédia, ma question : "qu'est-ce qu'une courbe" y est suffisamment décrite.
"Dans le premier livre des Éléments d'Euclide d'Alexandrie, un mathématicien grec et Archon qui a probablement vécu à Alexandrie au 3e siècle avant JC, il est dit : "Un point est ce qui n'a pas de parties. Une courbe est une longueur sans largeur" et : "En mathématiques, une courbe est un objet unidimensionnel, elle doit prendre une trajectoire courbe, sur laquelle on ne peut se déplacer que dans une seule direction". Wikipédia
Aha, une courbe est unidimensionnelle, mais elle peut aussi être plus dimensionnelle, elle peut être étroite ou large. Dans les Alpes, par exemple : Les virages en épingle à cheveux dans le réseau routier sont des routes qui ont une courbe étroite en U ou en V avec un angle de 150° à 180°, les routes dites serpentines ou de passage qui mènent à un col et puis descendent dans une autre vallée. Merci à mon équipe intelligente de Wikipedia
Dans mon ménage il y a beaucoup d'objets avec des courbes, lequel dois-je choisir ? Quoi de plus évident qu'un objet utilisé en photographie ?
J'ai emprunté la télécommande d'un membre de la famille, je l'ai drapée sur une plaque miroir et je l'ai prise avec notre nouveau trépied macro. Comme toujours, il y a eu beaucoup de photos, voici la photo que j'ai choisie.
Je vous souhaite une semaine heureuse et paisible, chers amis. Merci beaucoup pour votre visite, un commentaire et une étoile me rendent toujours heureux !
The writer of 'Os Sertões' wrote the book in 1898-1901, along with the construction of the Ponte de São José do Rio Pardo. The so-called Casa de Zinco, made of zinc leaves, in which Euclid wrote and designed his works is located on the banks of the Pardo River and next to its bridge, protected by a glass house.
Due to the conception of the Sertões in this municipality, the Casa de Cultura Euclides da Cunha promotes the Euclidian Week and the Euclidean Marathon from 9 to 15 August; these are events intended for students of the municipal schools and others.
Eh, cari miei, - dice Qgwgq sospirando – finché ci fu solo il vuoto ce la spassammo senza pensieri. Ti buttavi nello Spazio e lo occupavi tranquillamente. C’era spazio per tutti, infatti, prima che cominciassero a dire che se non piantavi qualche riferimento non si poteva andare avanti. E invece ci imposero il primo sistema di coordinate che, per euclideo che fosse, ci faceva già sentire stretti. O almeno limitati e inchiodati nelle maglie della rete, visto che, se ti avevano assegnato (x,y), guai a te se ti mettevi in (z,w).
Quando poi inventarono le geometrie non euclidee fu un disastro. Con la faccenda delle geodetiche che si sviluppavano a cavolo, tanto che lo spazio poteva essere ellittico o iperbolico o chissà che altro, se ci si metteva di mezzo una massa gravitazionale …
Eh, cari miei … mentre quattro esaltati si divertivano con le equazioni che ne risultavano, la rete delle geodetiche dello spazio in cui vivevamo felici cominciò ad avvolgersi, stringersi, piegarsi su se stessa. E finì per prenderci in trappola come pesci che si dibattono mentre vengono trascinati fuori dall’acqua.
SIRAD, Plagiando Calvino, 2013
"I miss my office of zinc and slats on the bank of the Rio Pardo! I believe that if I persist in this barren agitation, I will not produce anything more lasting."
Euclides da Cunha
(Excerpt from the letter of Euclides to Francisco Escobar in 1908).
Euclides da Cunha
20 jan 1866
15 agu 1909
Euclides da Cunha Filho
18 jul 1894
4 jul 1915
Os Sertões, ("the backlands"; 1902), translated as Rebellion in the Backlands, is a book written by the Brazilian author Euclides da Cunha. Mixing science and literature, the author narrates the story of a war that happened in the end of the 19th century, in Canudos, a settlement of Bahia's Sertão ("backland"), an extremely arid region where, even now, struggles against poverty, drought and political corruption continue. During the war (1893–1897) against the republican army, the sertanejos (inhabitants of the backlands) were commanded by a messianic leader called Antonio Conselheiro.
Lear Macaws - wild - feeding at a licuri palm tree at Euclides da Cunha, Bahia.
For over a century after it had been described, the whereabouts of the wild population was unknown. It was eventually rediscovered in 1978 by ornithologist Helmut Sick in Bahia in the interior northeast of Brazil. Some thought the bird was a hybrid or variant involving the similar hyacinth macaw, but this idea was soon abandoned, as plumage, size, and proportions of Lear's macaw differ from those of its close relatives. It is known from two colonies at Toca Velha and Serra Branca, south of the Raso da Catarina plateau in northeast Bahia. In 1995, a roosting site holding 22 birds was located at Sento Sé/Campo Formoso, 200 km (120 mi) to the west.
Lear's macaw inhabits stands of licuri palm. This habitat, while never plentiful, is currently estimated to be around 1.6% of its original cover. Cattle that live near its nesting grounds often stand on the roots of young licuri palms, killing them, so causing a large loss of food for these birds. In fact, though the lifespan of these palms can be 30–150 years, most trees do not make it over 8–10 years. Lear's macaw also requires a sandstone cliff in which to nest. To nest there, they apply their saliva to the sandstone which softens it, then excavate small crevasses using their beaks and scrape the dust out of their soon-to-be nests with their feet. en.wikipedia.org/wiki/Lear's_macaw
It's population has grown over the years, however, there are only about 1.500 individuals in the wild and its existence is threatened by loss of habitat.
Thanks a lot for your visits, comments, faves, invites, etc. Very much appreciated!
© All my images are protected under international authors copyright laws and may not be downloaded, reproduced, copied, transmitted or manipulated without my written explicit permission. All rights reserved. Please contact me at thelma.gatuzzo@gmail.com if you intend to buy or use any of my images.
Two parallel lines come across in the infinity, says Projective Geometry... where nobody can watch them, when the space between them have been removed.
El 20 de diciembre de 2021 nos fuimos a la Reserva Natural Río Bravo, un maravilloso lugar ubicado desde donde empieza el desembalse del lago Calima hacia el pacífico. Este lago es la base de una central hidroeléctrica que genera energía para el departamento del Valle del Cauca (Colombia) y se encuentra en el municipio de Calima El Darién. Tanto la vegetación, como las aves y otras especies nos sugieren un ambiente similar al del Chocó biogeográfico. Es sol nos acompañó y pudimos ver varias mariposas.
Esta es la Diaethria euclides, una mariposa de la familia Nymphalidae, de la subfamilia Biblidinae y tribu Callicorini. A esta y a otras maripositas similares se les suele llamar "89" (o "98"), por el diseño que tienen en las alas posteriores. Este ejemplar se posó en mi bota y tuvo la paciencia de esperar a que me la quitara para hacerle una foto desde una posición más cómoda.
El género Diaethria se limita a América Central y del Sur y las cerca de 12 especies que tiene se encuentran ampliamente distribuidas por el Amazonas y los Andes. La Diaethria euclides se reconoce porque el borde rojo se extiende solo hasta la más interna de las líneas submarginales negras.
April 23, 2021
Mare Insularum was named so because of its resemblance to a broad sea dotted by archipelagoes of small islands. Photos of Mare Insularum usually focus on its showpiece craters, Copernicus and Kepler, with their overlapping and intersecting ray systems.
In this photo, Copernicus is just out of the frame at the bottom and Kepler relegated to the margin, near the terminator. The following discussion focuses on lesser features, including those archipelagoes of small islands for which this lunar sea is named. The photo is presented such that North is on the right, with the lunar terminator on the top edge (West).
Let’s start with a few landmarks. In the lower left corner are the Montes Riphaeus, an irregular mass of peaks that extends for a 161 km in a North - South direction. These peaks top out at about 915 meters. They are thought to be the remnant western rim of an otherwise obliterated lunar basin.
Immediately west (above) of the Montes Riphaeus is the crater Euclides, a 12 km wide, bowl-shaped formation with a circular rim. It is surrounded by a field of ejecta that is brighter than the nearby lava plains.
To the right (North) of the Montes Riphaeus is the crater Lansberg (39 km diameter), with a sharp crater rim, terraced inner walls and a distinct central peak.
In the lower right corner are the westernmost peaks of the Montes Carpatus, which are one of the great mountain ranges formed as the outer ring of the Imbrium impact basin. In this area, the Montes Carpatus rise to a height of 2.13 km. Amid these mountains sits the largest crater in this region, T. Mayer crater (33 km in diameter).
In the upper (West) center portion of this photo is Kepler crater, with a deeply shadowed interior and a brightly illuminated western rim. Kepler has a diameter of 32 km. It has a distinctive ray system, visible here, extending outward and eastward into Mare Insularum, where it mingles with the greater ray system of Copernicus crater. Kepler forms nice triangle with Lansberg and T. Mayer craters, the sides of which are largely comprised of the multitudinous islands of Mare Insularum. Near Kepler to the left (South) is the 28 km diameter Encke crater. To my eye, Encke has a walnut shape, although it is usually described as polygonal.
The Lansberg - T. Mayer – Kepler triangle is home to some noteworthy lunar domes. These domes are the lunar version of shield volcanoes. Due to the viscous nature of the lavas they spewed, they are low mounds, usually a hundred to a few hundred meters high and 10-20 km in diameter. They are visible only when illuminated by low-angle light. Sometimes they appear in clusters, sometimes as isolated features. Both can be seen in this image. Halfway along the triangle leg connecting Lansberg and T. Mayer craters a cluster of small bumps can be seen, just north of the small Hortensius crater. Look closely, and you may see the dimples marking their summit vents. These are the Hortensius Domes. Another, more difficult cluster is found in the valleys between the mountain ridges extending to the left (South) from T. Mayer crater. These domes are detectable as swellings against the ridges, but close examination may show some summit vents. These are the T. Mayer Domes. An isolated dome can be spotted in the lava plains of Mare Insularum, northwest of the Hortensius Domes and south of the T. Mayer Domes, just west of the small crater Milichius. This dome is named Milichius Pi. It has a distinct summit caldera vent. Another isolated dome lies at the 1:00 position relative to Kepler, to the crater’s northwest, about one Kepler diameter distant from the crater. This is known as Ke1. It is an effusive dome with a diameter of nearly 14 kilometers and a height of 170 meters.
Lastly, note the wonderful tangle of wrinkle ridges in the middle left of this image. These are the Dorsa Euclides F, named for the tiny crater that straddles the left (southern) branch. These wrinkles form when deep basaltic lava flows contract as they cool.
Seeing conditions were supposed to be "average” but turned out a good bit better in my neighborhood, closer to 4/5 at the time this video was obtained.
The best 25% of 3998 video frames were used in creating this image.
I omitted my usual step of pre-processing the video in PIPP software, as tracking was good. Instead, the video was stacked without pre-processing with AutoStakkert!3 software. Wavelets and histogram adjustments of the AutoStakkert!3 output image were done with Registax 6. Final toning, cropping and watermarking were done with Camera RAW and Photoshop CC 2021.
Celestron Edge HD8 telescope
ZWO ASI 290MM camera
Celestron Advanced VX Mount
La Diaethria euclides phlogea es una mariposa de la familia Nymphalidae, subfamilia Biblidinae, tribu Callicorini, que vimos entre las veredas Río Vides y La Castellana, cerca de Villagarzón, en el departamento del Putumayo. Esta subespecie, la phlogea es ¡endémica de Colombia!
Vuelvo a recurrir a learnaboutbutterflies en busca de algo de información. Allí pude encontrar que "el género Diaethria se limita a América Central y del Sur: 3 especies se encuentran en México, mientras que las restantes están ampliamente distribuidas por el Amazonas y los Andes".
"La parte superior de todas las especies de Diaethria es negra, marcada en las alas delanteras con una banda diagonal de color azul metálico o verde. En algunas especies este color se repite en las alas traseras en forma de banda submarginal".
Los números 89 u 88 que aparecen en la parte inferior de las alas traseras de los euclides están presentes en las 12 especies de Diaethria, pero varían en color, grosor y forma. En clymena, por ejemplo, las líneas son bastante gruesas y las marcas suelen formar una cifra "88", mientras que en otras, como neglecta y euclides, son finas y forman un "89". La Diaethria euclides puede reconocerse por el borde rojo de la costa inferior, que se extiende sólo hasta la más interna de las líneas submarginales negras. En la mayoría de las otras especies, por ejemplo, neglecta, clymena y gabaza, llega hasta la línea más externa. En algunos ejemplos de euclides el número "9" confluye con la línea más interna".
"Diaethria euclides se encuentra en Colombia, Venezuela, Ecuador y el norte de Perú. Existen 6 subespecies con nombre" El bicho suele encontrarse en el bosque nublado a una altura de entre 1000 y 2000 metros".
"Ambos sexos se sienten atraídos por la fruta podrida. Los machos se sienten fuertemente atraídos por la arena empapada de orina, y también absorben los minerales disueltos del suelo húmedo, las superficies de las carreteras y las paredes de las rocas. Son mariposas muy activas, que se molestan con facilidad, y rara vez se posan durante más de unos segundos en un mismo lugar, pero regresan repetidamente a la misma percha.
"Cuando no se alimentan, los machos se posan en la superficie superior de las hojas a una altura de unos 2 o 3 m, esperando a las hembras que pasan. También suelen posarse con la cabeza hacia abajo, en paredes o troncos de árboles".
Fuente (acudiendo al uso justo): www.learnaboutbutterflies.com/Amazon%20-%20Diaethria%20eu...
Fair use: "En general, se considera uso razonable la utilización de una obra con propósitos de crítica, realización de comentarios descriptivos, noticias, enseñanza (como en este caso) e investigación". es.wikipedia.org/wiki/Uso_justo
Mid morning we arrived at our first scheduled stop, close to a waterfall on the Rio Hollin. The weather was still quite overcast so there were a lot less butterflies around than had been expected, but this was at a slightly lower altitude and thus different species were seen.
I had been promised many 88s on the trip and this was the first time I had seen one, so I was very excited. I spent a lot of time chasing them around trying to get photos. We actually saw far fewr tha we were told likely and this spot was one of the few that several were seen. Some say this should be a 89 or 98.
Apparently it can also be called Diaethria phlogea or even Diaethria euclides phlogea. This suggests that it is not yet fully sorted.
The top photo shows '98' and the lower one shows '89'. I had thought at first that I might have accidently flipped an image, but the originals show this difference and I have now read that they are both 88 and 89. I do not really understand this. I have now found on Flickr one that shows '89' on one side and '98' on the other side. That is amazing to me.
Though I do not like the setting (the car park!) I think the photo shows the butterfly off really well.
El 20 de diciembre de 2021 nos fuimos a la Reserva Natural Río Bravo, un maravilloso lugar ubicado desde donde empieza el desembalse del lago Calima hacia el pacífico. Este lago es la base de una central hidroeléctrica que genera energía para el departamento del Valle del Cauca (Colombia) y se encuentra en el municipio de Calima El Darién. Tanto la vegetación, como las aves y otras especies nos sugieren un ambiente similar al del Chocó biogeográfico. Es sol nos acompañó y pudimos ver varias mariposas.
Esta es la Diaethria euclides, una mariposa de la familia Nymphalidae, de la subfamilia Biblidinae y tribu Callicorini. A esta y a otras maripositas similares se les suele llamar "89" (o "98"), por el diseño que tienen en las alas posteriores. Este ejemplar se posó en mi bota y tuvo la paciencia de esperar a que me la quitara para hacerle una foto desde una posición más cómoda.
El género Diaethria se limita a América Central y del Sur y las cerca de 12 especies que tiene se encuentran ampliamente distribuidas por el Amazonas y los Andes. La Diaethria euclides se reconoce porque el borde rojo se extiende solo hasta la más interna de las líneas submarginales negras.
→ Watch F U L L S I Z E @ 1920x1340 resolution ... ←
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Nato nel 323 a.c. in Grecia e morto nel 283 a.c si presume ad Alessandra d'Egitto in Egitto.
E'stato un matematico e filosofo greco antico. Si occupò di vari ambiti, dall'ottica all'astronomia, dalla musica alla meccanica, oltre, ovviamente, alla matematica. Gli Elementi, il suo lavoro più noto, rappresentano una delle più influenti opere di tutta la storia della matematica e furono uno dei principali testi per l'insegnamento della geometria dalla sua pubblicazione fino ad oggi. Euclide fu uno degli iniziatori dell’assettamento assiomatico delle teorie matematiche, impegno che venne intrapreso a partire dal suo secolo e che prevede assiomi e teoremi, che sono conseguenza dei primi. Questo modello è applicato a tutte le discipline scientifiche deduttive, come la logica e la matematica, e ha permesso a esse di appropriarsi di quella metodicità che oggi attribuiamo loro, grazie all’articolazione di principi primi e di risultati da essi derivati. Nonostante i pochissimi precedenti storici della teoria assiomatica in campo matematico e non, va detto che l'assioma in sé è comunque alla base della matematica.
Photographed the Euclide R45 Off Road Dump Truck that was on static display at the now defunct Timmins Underground Gold Mine Tour that was located in the City of Timmins Northeastern Ontario Canada. I believe the Euclide was used at the Kidd Creek Mine in the 70's.
FRA MAURO / KUIPER / MONTES RIPHAEUS / EUCLIDES
(you really have to click on the link
to the full to have all the details)
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"Kwisatz Haderach" N406/1810
QHY174MM + PMTx5
+ ASTRONOMIK ROT
60 Frames - 0,13"/pixel
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Full : www.flickr.com/photos/187071820@N02/51950861794/sizes/o/
Capture #1
Acrylic paint, paper, paint can, pencil, pine needles, moss, Sedum, sponge, stone
2009
Gregory Euclide
gregoryeuclide.com
Edition of 500, signed and numbered by Gregory Euclide
Archival Giclee on Hahnemühle Photo Rag Paper (308 gm weight)
Paper size 24 x 24 in. (61 x 61 cm), 2011
*50% of net proceeds donated to Agapé Riding Center and the Greater Mankato Area United Way Connecting Kids Program
order below.
Hi-Fructose starts 2010 off with an extensive cover feature with amazing painter Greg "Craola" Simkins; including a special sketchbook section, Kiel Johnson's constructed reality, the natural beauties of Lola, powerful street artist Jesse Hazelip, Historical Frictionist Van Arno, we Capture Nature with Gregory Euclide, the Art of Skinner,the mystical gardens of Andrew Brandou, weather the storms of Aron Wiesenfeld, plus the fractured sculptures of Susy Oliveira, as well as a Spotlight on Jennybird Alcantra and much more! HF vol.14 arrives January 2010.