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Moiré Pattern

In mathematics, physics, and art, a moiré pattern or moiré fringes are large-scale interference patterns that can be produced when an opaque ruled pattern with transparent gaps is overlaid on another similar pattern. For the moiré interference pattern to appear, the two patterns must not be completely identical, but rather e.g. displaced, rotated or have slightly different pitch.

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Moiré, is a textile with a wavy (watered) appearance produced mainly from silk, but also wool, cotton and rayon. The watered appearance is usually created by the finishing technique called calendering. Moire effects are also achieved by certain weaves,such as varying the tension in the warp and weft of the weave. Silk treated in this way is sometimes called watered silk.

Strong moiré visible in this photo of a parrot’s feathers (more pronounced in the full-size image).

Emergency Sandbag Shelter

In Azarbayjan

Location: Zang Abad Vil., Varsaghan Cou., East Azerbaijan Province, Iran

Date: 2012, Aug.

Emergency Sandbag Shelter is a musthave manual for every home, as an emergency guide. people around the world by its inventor, award-winning architect Nader Khalili, whose specialty was skyscrapers and who dedicated his life to teaching others how to build shelter for humanity could find how to use sandbags and barbed wire, the materials of war, for peaceful purposes as the new invention known as Superadobe or earth-bag, which can shelter millions of people around the globe as a temporary as well as permanent housing solution. This affordable, self-help, sustainable, and disaster-resistant structural system is a spin-off from Khalili’s presentation to NASA for habitat on the moon and Mars, which successfully passed rigorous tests for strict California earthquake building codes.

The project including two parts .One was used as a sample to teach local and the other one was astable. Therefor the volunteer group needed 14 days to complete The whole project. The crew was settled in a school which was still stable and safe.after a while local named the sample “Library” for school.

Volunteers are such an important part of these kind of projects. By volunteering your time, you will be supporting a small group ability to continue this work, helping people all around the world.

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