Articles With "green tech" Tag

Printing Houses From Mud

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The technology for the 3D printing of homes is still in its infancy, but the idea has great potential in this world where population is growing, and adequate and sustainable housing is just not keeping up. Wasp is an Italian firm that recently developed a 3D printer that can create affordable homes using mud as the main ingredient. Given the freely available and nearly limitless nature of mud, such a tech shows great promise.

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Getting Energy and Clean Water From the Clouds

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A team of scientists is currently raising funds through a crowd funding campaign to develop Air HES (HydroElectric Station), which is basically an airship that can extract clean water and electricity from the clouds. More specifically, it does so by harvesting and condensing water vapor, and uses it to spin up an electric turbine generator to create power. The developers have already built a small prototype to test the device and have done feasibility studies, while the main aim of the funding campaign is scaling up the device to produce economically viable levels of water and power.
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Printed Castle Heralds the Future

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Building homes using 3D printing technology is still a new idea, but one day it could well become one of the top construction solutions. Especially if the technology keeps developing at such a fast pace. The most recent successfully completed 3D printing project is a small concrete castle created by US-based Andrey Rudenko. He built the intricate structure in his backyard by using a large 3D printer that he made himself. His next project is printing a whole house.
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Stacking Solar Cells Could Vastly Improve Their Efficiency

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Harvesting solar energy is a great way to generate sustainable power, but unfortunately solar cells are far from being as efficient as they might be. Currently, commercially available solar cells can convert about 25 percent of sunlight into electricity, and scientists have been trying to create better solar cells for years. One milestone they have been unsuccessfully trying to reach is 50 percent conversion efficiency of solar cells. However, the start-up company Semprius might be on the right track with the stacking technique of solar cells they recently developed.
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Listening to Plants

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Photo: Video screen capture EuroNews

Plants, just like humans and animals, have a way of communicating with each other. Their language is comprised of electrical signals, through which they send messages to other plants. And now an international group of scientists is developing a way to analyze these electrical signals, and translate them into information we can understand. The project is called PLEASED (PLants Employed As SEnsing Devices) and has already received €1.07 million ($1.46 million) in EU funding.
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More Environmentally Friendly Solar Cells

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Researchers at Northwestern University have developed a new solar cell that uses tin instead of lead perovskite as a collector of solar energy. This cheap and environmentally-friendly solar cell can therefore be made without any high-tech equipment or hazardous materials.
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