The Lost Worlds of Planet Earth Ortelius hypothesized the idea that land masses may have been connected in the past, Alfred Wegener who hypothesized the idea of a super-continent Pangaea and continental drift despite the prevailing idea of flooded land-bridges at the time, and Bruce C. Heezen and Marie Tharp who discovered the Mid-Atlantic Ridge that supported the theory of plate tectonics. Tyson describes how the landmasses of the earth lay atop the mantle, which moves due to the motion and heat of the earth's outer and inner core. Tyson moves on to explain the asteroid impact that initiated the Cretaceous–Paleogene extinction event, leaving small mammals
The Legend of Zelda: A Link to the Past Hookshot, the Master Sword, the Spin Attack, and the Pegasus Boots. Heart Containers that increase the player's maximum health (hit points) are present, but many are split into "Pieces of Heart", four of which make up one Heart Container. Most of them are well hidden, adding replay value to the game. All dungeons are multi-level, requiring Link to walk between floors and sometimes fall through holes to land on lower levels. "A Link to the Past" is the first appearance of what would subsequently become a major "Zelda" trademark: the existence of two parallel worlds between which the player travels.