Unique crystals could helped the Vikins in sea navigation
According to the legend, special unique crystals, called sunstones could helped the Vikings in sea navigation. A study of Hungarian researchers proved that it was possible to navigate in certain cloudy weather conditions. During the study presented in the current issue of the Proceedings of the Royal Society A scientific journal, Gábor Horváth, the leader of the Environmental Optics Laboratory of the Biological Physics department of the Eötvös Loránd University Faculty of Science (ELTE), the senior author of the study and his colleagues are tested this hypothetical method. Image source: Wikimedia commons /ArniEin The Vikings traveled thousands of kilometers on the Sea, they even reached North American. They didn't had magnetic compasses, because of this, they navigated based on the position of the Sun. If clouds covered the sky, they located the sun by so-called sunstones, then they determined the north direction. Image source: Flickr/Geir Are Johansen In 19...