Science and U: Magnetism and Mercury

Dr. Weiping Yu returns with another refreshing segment of Science and U. The physicist talks about cellphone radiation causing cancer and how we can take steps to mitigate the risks. Dr. Yu also comments on the startling claim that magnetism, not cataclysm, may be the cause of Mercury’s giant iron core. What does this mean for the mainstream theory about gravity? Listen to the full segment to find out and more.