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Scientists want to make buildings from bone
A cityscape made of bone and eggshell might sound like the set for the final act of some big-budget fantasy epic, but the idea could help support ever-growing populations in our cities -- and reduce carbon emissions in the process. According the University of Cambridge, typical materials like concrete and steel make up almost 10 percent of global carbon emissions. Before they even get to the place of construction, both materials need high temperatures to be processed, and thus a whole load of energy. Researchers are hoping that artificial bone and eggshell, made of protein and minerals, could one day stand in for traditional building materials.
Teensy Weensy eggshell speakers, perfect for all the king's men
This is one waste not, want not, DIY project that caught our eye. Tiny little speaker housings made of carefully cut (and, we assumed, cleaned) eggshells, with small stands of clay. The final product apparently has "narrow" sound, but they sure look cuter than any homemade speakers we've ever seen before.[Via Wired]
