DW Tomorrow Today July 13, 2024
And find out how to turn Carbon Dioxide into plastic. 170 large piles of studs or cans in a line running along 10 kilometers of sure line for millennia they went unnoticed submerged in the waters of Lake Constance in Central Europe they form a remarkable manmade monument. All told it consists of more than 120000 tons of stone about as much as went into building the cathedral in cologne. If each stone weighs 2 kilograms on average then the structures at the lake consist of 60000000. 00 stones. Today it would take more than 8000 truckloads to move them but these were all transported by hand. The...