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During the process of making an orb web, the spider will use its own body for measurements.
Many webs span gaps between objects which the spider could not cross by crawling. This is done by first producing a fine adhesive thread to drift on a faint breeze across a gap. When it sticks to a surface at the far end, the spider feels the change in the vibration. The spider reels in and tightens the first strand, then carefully walks along it and strengthens it with a second thread. This process is repeated until the thread is strong enough to support the rest of the web.
After strengthening the first thread, the spider continues to make a Y-shaped netting. The first three radials of the web are now constructed. More radials are added, making sure that the distance between each radial and the next is small enough to cross. This means that the number of radials in a web directly depends on the size of the spider plus the size of the web. It is common for a web to be about 20 times the size of the spider building it.
After the radials are complete, the spider fortifies the center of the web with about five circular threads. It makes a spiral of non-sticky, widely spaced threads to enable it to move easily around its own web during construction, working from the inside, outward. Then, beginning from the outside and moving inward, the spider methodically replaces this spiral with a more closely spaced one made of adhesive threads. It uses the initial radiating lines as well as the non-sticky spirals as guide lines. The spaces between each spiral and the next are directly proportional to the distance from the tip of its back legs to its spinners. This is one way the spider uses its own body as a measuring/spacing device. While the sticky spirals are formed, the non-adhesive spirals are removed as there is no need for them any more.
After the spider has completed its web, it chews off the initial three center spiral threads then sits and waits. If the web is broken without any structural damage during the construction, the spider does not make any initial attempts to rectify the problem.
The spider, after spinning its web, then waits on or near the web for a prey animal to become trapped. The spider senses the impact and struggle of a prey animal by vibrations transmitted through the web. A spider positioned in the middle of the web makes for a highly visible prey for birds and other predators, even without web decorations; many day-hunting orb-web spinners reduce this risk by hiding at the edge of the web with one foot on a signal line from the hub or by appearing to be inedible or unappetizing.
Spiders do not usually adhere to their own webs, because they are able to spin both sticky and non-sticky types of silk, and are careful to travel across only non-sticky portions of the web. However, they are not immune to their own glue. Some of the strands of the web are sticky, and others are not. For example, if a spider has chosen to wait along the outer edges of its web, it may spin a non-sticky prey or signal line to the web hub to monitor web movement.
Announcement for Sunday morning and web. It is not intended to be super informative, but more of a reminder. I am probably going to try and make an HTML email reminder too.
Home alone this week. Going to treat myself to some Ribeye steaks from the butcher.
This was last night. Tossing another one on tonight!
I'm not kidding, there are webs everywhere...I almost think I need to wear armor to go out in the garden...to protect myself from those biting brats.
This is a motion blur of a spider web. There was a slight wind, and this was taken at 1/4 second shutter speed.
This work by Dennis Behm is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License.
Préparation de ma prochaine présentation "Rédiger pour le Web" pour la SNCF, avec l'agence A Conseil et 90 C.
twitter.com/AxelRottenPhoto/status/1587864929444544515
This photo is posted for design inspiration. The design content and photos posted in this album are not my own, but posts from external sources around the web. For use in commercial and personal projects contact the original source of the content posted in the Album "Web Graphic Design Resources".
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On October 6th, 2007 Denver Colorado celebrated(?) it's 100th anniversary of the Columbus Day parade. For about 20 years, since the parade was revived by local Italian Americans, American Indians have protested the event. They contend that Christopher Columbus was a slave trader and the catalyst to the genocide of their people.
Italian Americans view this as a day to celebrate their heritage. I saw only a few references to Columbus. Mostly folks in nice cars or on cool motorcycles waving U.S. and Italian flags.
The American Indians want the name changed.
Some states have changed the name of the day to Indigenous Peoples Day but I'm not sure that would work here because the Italian Americans have been having this parade for years.
So this is how it all went down. The protesters showed up at the Denver capital building several hours before the parade. Protesting and drumming, some in traditional American Indian clothing. Amazing workmanship and detail.
In the past, protesters and police had spoken beforehand about "how things would go", trying to keep things peaceful.
Going as far as planning arrests. Not this year.
Interestingly enough the leader of the anti Columbus Day group "Transform Columbus Day Alliance" is Glenn Spagnuolo, that's right Spagnuolo.
When confronted with the permits needed, Glenn stated
"We don't need a permit, because we are on native land."
www.rockymountainnews.com/drmn/local/article/0,1299,DRMN_...
and
"Asking an illegal colonizer for permission to be on land that doesn't belong to them doesn't work for us,"
www.rockymountainnews.com/drmn/local/article/0,1299,DRMN_...
Another group well represented was the American Indian Movement of Colorado. Ex and current Colorado University professors Ward Churchill and Glenn Morris are leaders of this group. Well known Russel Means is also a member, having left the main chapter of AIM.
en.wikipedia.org/wiki/American_Indian_Movement_of_Colorado
The American Indian Movement of Colorado is not affiliated with the American Indian Movement. View their stance here
aimgrandgovcouncil.blogspot.com/
So they followed their own route, from the capital through downtown Denver, on their way to come head to head with the Italians and their parade. They have always been peaceful and they vowed that today would be the same.
However, they had grown tired of years of words and seeing no actions.
When the protest met the parade, emotions ran deep and blood spilled through the streets. Not real blood however, but fake blood spilled by the protesters along with dismembered dolls. Many protesters sat in the street, stopping the parade from starting. Russell Means and Glenn Morris included. All were arrested. Nobody fought, but they did resist their arrests.
After this initial push by the protesters, the parade went on....a little off schedule. At this point it was lots of yelling and verbal abuse. Protesters yelling at cops and Italians. Italians, including 80 year old ladies and teenage kids, cursing and flipping the bird at protesters. Police officers, staring through mirrored sunglasses with rubber bullet guns, flashing dirty looks at everyone.
After the parade had traveled a few blocks, a group of young American Indians wearing bandannas over their faces made their stand and sat in the middle of the road. About 20 cops jumped on top of them and promptly pulled them apart and arrested them. The protesters didn't fight, but they did use each other as weight, locking their arms together. One of them came up bloody.
After this, the parade continued and the protesters headed back to the capital to spread the word. 83 protesters taken away on police buses by the time the parade was over.
Personally, I have no vested interest here. I'm not American Indian or Italian American. I do believe that what happened to the native people of this land is horrible. If I was Native American, after years of persecution of my people, I would probably be tired of words and lies too. However I don't have anything against Italian Americans either and I doubt their ancestors had more to do with Indian genocide than any of the other European countries that settled in the United States.
I think the city of Denver needs to get off their butts and do something about it. How hard is it to change the name of the parade to Italian Heritage Day or whatever and out of respect to the American Indians, have another day for them. How hard is that? 20 years, really?
I also realize the city is planning for the Democratic National Convention but was the show of force necessary, for a group that has maintained their peaceful approach?
A little overkill if you ask me, but then again this is a post 9/11 world, and everyone could be a terrorist.
www.indiancountry.com/content.cfm?id=1096409698
U.S flag on top of the building above. This man is an American Indian Movement of Colorado security guard. They provided their own security.
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Same tracks as this shot.
www.flickr.com/photos/ajschroetlin/387462176/
Different perspective, different lens, different day, different area :)
NIK Infrared BW filter used in Photoshop.
twitter.com/LanesTree/status/1544161688047550465
This photo is posted for design inspiration. The design content and photos posted in this album are not my own, but posts from external sources around the web. For use in commercial and personal projects contact the original source of the content posted in the Album "Web Graphic Design Resources".
Por dónde anda ahora, nadie sabe,
a la luz del sol o entre las sombras
pues hace tiempo que Nimrodel
se extravió en las montañas.
- Canción de la Doncella Nimrodel - fragmento - "El Señor de los Anillos", JRR Tolkien -
En el Lightbox : más grande y sobre fondo negro
- Fotoilustración. Stock personal. Todas las imágenes son de mi propiedad -
¡ Gracias Natalia, por dejarme tu preciosa capa élfica ! :-) *****
¡ Gracias Manuel, por la "peazo" pantalla! :-) *****
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