plants

/  by Thomas DeVoss

archatlas:

Biosphere Potsdam Barkow Leibinger

The Biosphere and Flower Pavilion was constructed for the German Horticultural Show 2001 Potsdam in the vicinity of the Sanssouci Palace. The project is located in the Bornstedter Fields, a site used for the last 100 years by the military for troop exercises and barracks. The building is generated by the forms of the earthen berms on the site that had been built by the Soviet Army during their occupation as defensive barriers. The building is formed by a series of berms forming an artificial valley that is enclosed by a simple flat roof with skylights.

Carving into the earth, a sunken garden reduces the height of the building. The berm forms are clad in oak logs, grass, slate or are of poured concrete. With partial views to the adjacent park framed, the visitor is led through a series of inclined planes covered by tropical plants and flowers either at the level of the ground or from suspended bridges. After the six month garden show, the pavilion functions as a commercial attraction run by a film company.

Images and text via Barkow Leibinger

/  by Thomas DeVoss

realcleverscience:business-and-technology:FM radio becomes the world’s first plant-powered appliance Moss, as a rule, isn’t that impressive. In the wetter regions of the world, the stuff grows pretty much wherever you let it. It’s green and squishy…

realcleverscience:

business-and-technology:

FM radio becomes the world’s first plant-powered appliance

Moss, as a rule, isn’t that impressive. In the wetter regions of the world, the stuff grows pretty much wherever you let it. It’s green and squishy and pretty enough, we suppose. What moss isn’t is a good source of electricity, or at least it wasn’t until recently. By wiring together 10 little pots of the stuff, a group of scientists from the University of Cambridge have actually harvested enough moss-grown electricity to power an FM radio.

How the moss actually powers the radio is thanks to something called a Photo Microbial Fuel Cell (Photo-MFC). These are comprised of three basic parts: an anode to collect the electrons the moss strips from water during photosynthesis, a cathode where the electricity is consumed and an external circuit to connect the two. Each of the ten moss pots contained in the Moss FM rig is hooked up to its own Photo-MFC, and these in turn are hooked up to a battery.

The battery stores what energy it can from the process, currently about .01 percent of the moss’s output and then powers the radio. So far, that .01 percent output is only enough to run the radio’s speaker and tuner for a couple of minutes. That’ll change in the coming years, however, since researchers at the University of Georgia have already found a way, using microscopic nanotubules, to produce twice as much electricity from plants as you can get from today’s photovoltaic cells. Once the two approaches merge, we could easily see everything from moss to the trees lining our streets turned into, quite literally, the greenest power plants around.

Every now and then I read about an approach like this. I don’t know if it’s feasible, but it’s damn fascinating!