12 oktober 2016

Yzer

Sipma Rolde
Yzer

Quicksand

Arnhems drijfzand (1)Arnhems drijfzand (2)Arnhems drijfzand (3)
Wikipedia:
Quicksand is a colloid hydrogel consisting of fine granular material (such as sand, silt or clay), and water.

Quicksand forms in saturated loose sand when the sand is suddenly agitated. When water in the sand cannot escape, it creates a liquefied soil that loses strength and cannot support weight. Quicksand can form in standing water or in upwards flowing water (as from an artesian spring). In the case of upwards flowing water, seepage forces oppose the force of gravity and suspend the soil particles.

The saturated sediment may appear quite solid until a sudden change in pressure or shock initiates liquefaction. This causes the sand to form a suspension and lose strength. The cushioning of water gives quicksand, and other liquefied sediments, a spongy, fluidlike texture. Objects in liquefied sand sink to the level at which the weight of the object is equal to the weight of the displaced soil/water mix and the submerged object floats due to its buoyancy.

Cheers

Street View

10 oktober 2016

‘Verplaatsing stiltegebied’

Via: 'Truc' met stiltegebied langs Pannerdensch Kanaal wekt woede. (Dorpsraad Loo)

Na de Betuwelijn de A15

“Geconfronteerd met de plannen van de A15 is er grote onrust ontstaan in onze dorpsgemeenschap. Naast de genoemde geluids- en milieuoverlast hebben we te maken met een extra doorsnijding van ons dorp. De Betuwelijn leverde dat 10 jaar geleden al op en nu komt er nóg een stuk bij. Opnieuw worden delen van Groessen van de kern afgesloten. Voor de bewoners onacceptabel.”

Zienswijze OTB A15 Dorpsraad Groessen (PDF)



“I’m good at looking for walls. Look, I found another one.”

Betuwelijn, Zevenaar, Orwo Chrom UT 20. Photo: Robert van der Kroft
Betuwelijn, Zevenaar, Orwo Chrom UT 20. Photo: Robert van der Kroft
Betuwelijn, Zevenaar, Orwo Chrom UT 20. Photo: Robert van der Kroft
  • Fujica ST605 with Pallas Magenta AM
  • Orwo UT 20 (expiration date unknown) shot at ISO 10
  • Caffenol + .5g potassium bromide
  • Stand development, 70 min
Canister, Orwo Chrom UT 20. Photo: Robert van der Kroft
Leading strip, Orwo Chrom UT 20. Photo: Robert van der Kroft


Duffelcoat Review by Montezuma

Download the Duffelcoat Review by Montezuma (PDF)




30 september 2016

А я иду, шагаю по луне!..


Red Sky At Dawn:
In this propaganda poster, Lunokhod is imagined as a smug chain-smoker sporting a pair of platform shoes and a jaunty cap. He’s also a deep shade of communist crimson, unlike the white-grey Lunokhods of reality. It’s an image I often think about whenever I read the insufferably twee twitter accounts of @philae2014 the EU’s comet lander, or @MarsCuriosity, NASA’s WAL-E -esque Mars robot. Whilst they anthropomorphicise those scientific instruments as curious, childlike characters, the Soviets decided some sort of cigarette-wielding lad-about-town, a real Muzhnik, was the best way forward. You’d feel safer leaving your kids with Philae or Curiosity, but you know it’d be Lunokhod you’d invite on a night out. It’s a strange choice to modern, western eyes, but proof that even in robotic space travel, there’s a craving for humanising detail. We want to connect with these charismatic robots. American visitors to Moscow remarked that Lunokhod models were an extremely popular contemporary hit at the “Children’s World” toy shop.