8 Eye-Opening Facts We Didn’t Know About Aviation

Why are aircraft windows round? Why do airplanes have curved wing tips? Why do passengers always board planes from the left side?

Everything connected with aircrafts is well-planned and thought out. Perhaps it’s the main reason why a plane is the safest way to travel.

Smartzune.com will answer the 8 most popular questions about airplanes.

8. Why are aircraft windows round?

Ever gazed out at your plane taking off and wondered why your plane windows always have rounded edges, unlike the hard corner in your home? There’s a simple and very good reason, as explained by this clever little video.

As commercial air travel took off in the mid-20th century, airline companies began to fly at higher altitudes to save money—the air density is lower up there, creating less drag for airplanes. But for passengers to survive at 30,000 feet, the cabin must be pressurized.

In the beginning of the 1950s, de Havilland developed Comet, the world’s first commercial jet airliner. It was literally a miracle. But a year later, it fell to pieces right in the sky. In several months, 2 more airplanes crashed.

Engineers conducted a diagnosis of each screw of the aircraft and found the problem: the windows were square. The thing is, pressure builds more around the corners of square windows and this pressure only increases during a flight. So it was decided to make windows round. Thanks to this decision, flights are way safer now.