Hydrogel-filled ceramics can cool buildings

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When the weather gets hot, it's usually simply a case of switching on the A/C. Unfortunately, this can help easily rack up huge utility bills as well as your carbon footprint. We've previously seen Al Bahar Towers in Abu Dhabi use computer-controlled sun screens to keep offices cool in an environmentally-friendly way. Now students from Spain's IAAC architecture institute have developed a new type of building material that responds to the temperature outside and automatically switches from cooling to insulating. Known as 'hydroceramics', the textile features hydrogel bubbles that interact with the environment. Hydrogels are able to absorb and retain…

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