Watercone is a polycarbonate cone with the capacity to purify up to 1.5 liters of w...  ...nkable water is pour dirty or salt water into the cone 's black base, place the cone atop it in the sun. As the water evaporates upwar...  ...the water evaporates upwards it condenses o...

Archaeologists digging at Zaraysk, Russia, unearth...  ...nes and carvings, including something puzzling: a cone -shaped object whose function remains a mystery:Al...  ...n object carved from mammoth ivory, shaped like a cone with its top removed. The cone is densely ornamented...