Monthly Archives: April 2015

23Apr/15
View of a house being built with tires in Choachi, Cundinamarca, Colombia on March 16, 2015. In the same way as igloos, thermally efficient and resistant to quakes, a particular kind of house in central Colombia takes advantage of a material which is thrown away: tires. 5.3 million tires are thrown away each year in Colombia, and since they take millions of years in decomposing, using them for building becomes a potential.  AFP PHOTO/Eitan Abramovich

Some igloos built with used tires in Colombia

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On the heights of Bogota, curious rise igloos. Gifted with good thermal insulation and resistant to earthquakes, these dwellings are not built with ice but with old tires abandoned. These residues are a real environmental pest in Colombia. Thanks to this project, have been recycled materials construction.

Pioneer project in Colombia, Alexandra Posada, an environmental activist, has organized the construction of original buildings in round walls in the town of Choachi , about 40 kilometers from the capital. “I give away these tires because it is a huge problem discard they. It takes thousands of years to decompose, “says this 35 year old woman who oversees the work in jeans and cowboy hat.

“Used for construction, become virtually eternal bricks “he adds. To convert tire blocks compact of 300 kilos, they are filled with earth. Iron bars are sandwiched between the tires of various sizes, depending on whether they come from trucks or cars.

This technique, which takes advantage of the flexibility of rubber, allows these houses cling to the side of the hill in the cook of the Andes, and so deal with the movements of the Earth, very common in this region.

The roofs of these houses are made of cement room and the kitchen, and wood for the dining room, an aesthetic issue. The roof is covered with tires that serves as shingles.

17Apr/15
Plant-e, or how to produce electricity through the plants

Plant-e, or how to produce electricity through the plants

Plant-e, or how to produce electricity through the plants

A Dutch company intends to produce electricity by installing electrodes on the ground full of water where plants adapted to this type of growing medium. Although efficiency is still weak, this invention called Plant-and could transform the rice electricity production units.

A paddy day and night could produce enough electricity to power a remote village in Southeast Asia. This dream takes shape in the Netherlands, where scientists develop a system that generates power by plants growing in media saturated with water.

Founded in 2009, Plant-e markets and perfects an imagined by scientists at the University of Wageningen and patented in 2007.

This device produces electricity by little it is through plants growing in a water-saturated medium system, a large scale, such as in a rice field or a jar filled with water in the garden could be a quite effective method.

The technology relies on photosynthesis by the plant and used by which this occurs specifically organic matter. The surplus is removed on the ground by the roots, through which live microorganisms that feed and release electrons. Placing electrodes carbon close to the roots, these electrons can collect and generate power.