More curious? Explore more stories on YouTube!
Are We Alone in the Universe?
Alex discovers distant worlds and humanity’s search for life beyond Earth. But so far, the universe has kept its secret. If there are so many planets, why haven’t we found anyone yet?
Why Do Ships Float?
Alex discovers how wide, hollow hulls help enormous metal ships stay afloat by displacing water. Then a new question appears: if ships are designed to float, how can submarines choose to sink?
Why Do We Dream?
Alex wakes from a very strange dream and discovers that the brain doesn’t simply switch off during sleep. But if scientists still don’t know exactly why we dream, could animals be dreaming too?
Why Is Popcorn Bigger Than a Corn Kernel?
Alex discovers how heat and pressure transform a tiny corn kernel into fluffy popcorn. He learns that getting bigger doesn't always mean adding more. Then he wonders what other foods change when we heat them.
Why Do We Have Money?
Why do we use money — and why don’t we simply trade bread for apples? Alex follows the story from barter to coins, paper and digital payments to discover why money works — and why people trust it.