Why Is The Sky Blue? – Do You Know? Finally, a simple answer to every child’s question! Paolo Di Trapani, professor of optics from the University of Insubria, explains why the sky is blue. Share this video if it helped you to understand! Facebook Prev Article Next Article Discover Checkout these cool gadgets... Related Posts 4 Unbelievable Starwars inspired Drones What is metallic glass? What Is Harder To Hit – Baseball or Softball? NASA Predicts a Mega Drought for America in 2075 Humans Can Be Dated Like Trees Are We Living In A Holographic Universe?