1+ week, 23+ hour ago   (447+ words) Scientists have found a way to trace when pottery, made by firing clay at high temperatures, was produced by analyzing traces of Earth’s magnetic field preserved in the ceramics. They also succeeded in distinguishing cheap souvenir-shop pottery from genuine artifacts…...

3+ week, 5+ day ago   (253+ words) Opposing helical collagen structures keep the narwhal’s spiral tusk rigid and unbent A research team led by Professor Henrik Birkedal of Aarhus University in Denmark and Professor Marianne Liebi of Chalmers University of Technology in Sweden structurally analyzed why narwhal…...