
How do you make something bigger and heavier than a human float? Science! From the earliest ships carved out of wood, to giant cruise ships that are like floating cities, there's a lot to learn about ships. What keeps ships from sinking and how do people put them tall together?...

How do you make something bigger and heavier than a human float? Science! From the earliest ships carved out of wood, to giant cruise ships that are like floating cities, there's a lot to learn about ships. What keeps ships from sinking and how do people put them tall together?...