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Porous polymer coatings dynamically control light and heat

November 10th, 2019 at 5:12 pm » Comments Off

The porous polymer coatings, which switch from white to transparent when wetted, can be put into plastic enclosures to make panels that control light and temperatures of buildings. Credit: Jyotirmoy Mandal/Columbia Engineering Buildings devote more than 30% of their energy use to heating, cooling, and lighting systems. Passive designs such as cool roof paints have […]



How cheap must batteries get for renewables to compete with fossil fuels?

November 4th, 2019 at 1:47 pm » Comments Off

Production of lithium batteries for environmentally friendly electric cars future of energy  While solar and wind power are rapidly becoming cost-competitive with fossil fuels in areas with lots of sun and wind, they still can’t provide the 24/7 power we’ve become used to. At present, that’s not big a problem because the grid still features […]



In this “biorecycling” factory, enzymes perfectly break down plastic so it can be used again

October 27th, 2019 at 12:53 pm » Comments Off

In this “biorecycling” factory, enzymes perfectly break down plastic so it can be used again  The process lets any plastic—say a polyester shirt—be recycled into any other plastic (like a clear water bottle). It could fundamentally change the market for recycling. Inside a bioreactor in the laboratory of the France-based startup Carbios, pulverized PET plastic […]



Watch the world’s largest 3D-printer spit out a 25 foot boat

October 25th, 2019 at 11:33 am » Comments Off

…and how this is really about using wood to replace metal If you’re shopping for a 3D printer, a key consideration is bed size; what’s the largest object you’d realistically need to print? For the University of Maine’s Advanced Structures and Composites Center, size limitations aren’t so much of an issue. That’s because they’ve got […]



IKEA will produce more energy than it consumes by 2020

October 2nd, 2019 at 12:44 pm » Comments Off

It hopes to be ‘climate positive’ by 2030. Many companies are pouring money into renewable energy, but how many can say they’re producing more than they need? IKEA thinks it will, at least. Its holding company Ingka revealed that IKEA will generate more renewable energy before the end of 2019 than the energy its stores […]



Understanding the future through the eyes of a child