Isaac Kerry – författare

Deep underwater, something shifts. Ocean water pulls back from the shore, then comes flooding back. It's a tsunami! These massive waves happen when earthquakes or other actions cause huge amounts of water to shift. Learn about tsunamis, pay attention to warnings and stay safe.

Deep underwater, something shifts. Ocean water pulls back from the shore, then comes flooding back. It's a tsunami! These massive waves happen when earthquakes or other actions cause huge amounts of water to shift. Learn about tsunamis, pay attention to warnings and stay safe.

Vikings were fierce warriors who sailed the seas looking for new lands. They were expert sailors and shipbuilders. Find out the science behind their explorations, shipbuilding and daily life. Discover how modern technology is being used to discover more about the lives of Vikings and their expeditions.