Black Box Question

[dmspilot00]

People call them black boxes as some believe that they are painted black in the past, others believe that they are black is due to the charring that occurs in the post-accident fires.


Really? I thought that was the dog's vision?
By the way, i'm not sure if it applies to your country but from where i'm from, they use to test your eye for astig with red and green colour. So shouldn't red and green be the one? Or green being the brighter one and red being the softer one?

They really were black...according to a factual documentary I saw on black boxes.

Dogs are colorblind, aren't they? I don't think the astigmatism test has anything to do with it.

If you think about it, the colors go Red, Orange, Yellow, Green, Blue, Violet. Red is at the low end of the spectrum, Violet is on the high end, and Yellow and Green are in the middle. So it makes sense that we most easily see the colors that are in the middle of the spectrum.

 

[Seair]

Yea, red/green colour blind
Dogs are dichromatic and can distinguish only two colours: blue and yellow. They are unable to recognize green, orange or red.
Most of their colour spectrum are yellow.

Cheers

(s)Seair

 

[reaperman]

Black because...

Henry Ford said so.

If you look in the avionics bay of an airliner, I think you'll see nearly all the boxes are black. It's easy; It's cheap; It dries fast (the Ford reason).

But there might be another reason for calling the recorders "black boxes". "Black Box" is a venerable old term used by engineers and scientists to describe a device that you don't know and/or don't care how its innards look and work. All you care about is that it performs its function.