Why Do Planes Fly So High? We’ve all been flying high ever since the development of the jet engine in the mid-1950s. But why were jets were designed to fly at those high altitudes in the first place? Facebook Prev Article Next Article Discover Checkout these cool gadgets... Related Posts Can You Shatter a Diamond? What Is Consciousness? Square Skateboard Wheels – New Inventions and Technologies 2015 Google Data Center Tour- In Containers? Can Moons Have Moons? Ever Wondered How Helicopters Move Forward or Upward ?