Is A black box black?

Is A black box black?

Whenever a plane crash occurs, 

people search for the cause of the crash by baking a look at the "Black box." 

A black box is a flight recorder that records what happened before the crash. 

Although people commonly think that the black box is black, it is actually orange.


 Because the color orange is easy to spot, orange black boxes are easier to find at 

crash scenes. 

So why are flight recorders called "black boxes" when they are not even black? 


It is because the term black box refers not to the exterior of the box, 

but to the interior, which is dark and holds the key to a secret.

 The black box was invented by Australian David Warren.

 David's father died in a plane crash when David was only 9.

 While working as a scientist at the Aeronautical Research Laboratory in Australia, 

David came up with the idea to build a flight recorder.



 Still, David did not give up. 



 In 1957, he built the first flight recorder.

 In 1963, the Australian government finally passed a law requiring all 

 commercial planes to install flight recorders. 

Today, black boxes are installed in almost every plane in the world.

Australia rare Animal Ornithorhynchus anatinus

 
 When i read the book. i found a very strange animal, Australia's kuck bill platy pus. So I want to introduce this animal. let's see together.

For many years, even scientists didn't know , exactly what it was. It has the feet and the bill of a duck. It is so funny animal. but i want to see it It doesn't have wings. and it has four legs instead of two.

The baby platypus gets milk from its mother like a mammal. but it is hatched from an egg, like a bird or reptile. What kind of animal is it then?....... I wonder.. In the world.. numorous kinds of animals are alive..

There are living things that we don't know.. We have never seen before.. I think We are living and we are breathing thanks to air ..rain..shining.. Suddenly I thank for the Earth.. for breathing.