Viking Sunstones and Mummy Health Secrets

The video explores how Viking navigators used sunstones to find their way through foggy seas, a technique supported by the discovery of Icelandic spar crystals on a Tudor shipwreck. It also discusses the prevalence of heart disease in ancient mummies, suggesting that atherosclerosis is not solely a modern ailment but has been present across various cultures and time periods.

How does the crystal known as Icelandic spar function as a solar compass?

What connection was found between age and atherosclerosis in the studied mummies?