Though the features have changed over time the name stuck with the device since its invention in Australia in the 1950s, at the time it was painted black and shaped like a box.
Experts then realised that in the event of a disaster, the device was very hard to retrieve from the wreckage. Today many are painted orange or yellow and are cylindrical in shape. Its official name is a flight recorder.
What happens when you flush a plane toilet?
There are many myths about how planes dispose of human waste during a flight, one of the outrageous ones being that waste is dumped mid-flight.
As you would imagine, toilets in planes do not use a water flush system due to the poor dynamics of the liquid which can lead to spillage.
When you flush the toilet inside a plane, a vacuum system is used to remove the waste at very high speeds and a little blue liquid disinfects the bowl right after.
The contents are stored in a large tank at the back of the plane and upon landing a special type of exhauster is used to clear the tank in readiness for another flight.
Reason planes prefer blue seats
If you travel by plane a lot, you will notice that many airlines prefer to use the colour blue for seats or interior decor.
The choice is designed to improve passengersâ€™ flight experience. How? You might ask.
The colour blue is associated with coolness, serenity and cleanness which explains why hospitals also prefer the colour.
â€œItâ€™s all about making the travelling experience less stressful and blue is said to evoke a feeling of calm. While some of the more budget airlines might use brasher, bolder shades, most others go with muted tones.
“The overarching aim is to create a home-like relaxing feel, so airlines tend to use muted colours that feel domestic, natural and earthy for that reason,” explains Nigel Goode, a lead aviation designer.
How planes are protected from lightning strikes?
Lighting bolts are known to be scary and disastrous and flying during a storm could prove scary for passengers in a plane.
There is no reason to be scared since the last time a crash was attributed to a lightning strike was in the 1960s.
Modern planes are protected from the adverse effects of lightning strikes. Designers and manufacturers make the planes such that whenever lightning strikes the sharp edge of a plane the current exits via the tail.
The fuselage (cabin) is made of thick composite material that cannot let the charges through into the chamber.
Electrical parts and components of a plane are also well-grounded to prevent any damage that can threaten a plane’s safety.
Round windows are used instead of square/rectangle
A planeâ€™s rounded windows are not just an unconscious design choice despite being very aesthetic.
Until the 1950s, planes were using square windows but a series of crashes showed that the corners of square windows were a design flaw.
Crash reports showed that due to the sharp corners, the metal surrounding the window pressure two to three times greater than elsewhere on the fuselage.
Rounded edged help distribute pressure and prevent the plane from disintegrating mid-flight.