Is black a colour?

  • 5 Replies
  • 610 Views

0 Members and 1 Guest are viewing this topic.

*

Offline thedoc

  • Forum Admin
  • Administrator
  • Sr. Member
  • *****
  • 513
    • View Profile
Is black a colour?
« on: 06/10/2016 10:21:32 »
Hi. Is black really a colour ? Or just the absence of light ? (visible light)
Asked by Martin


                                        Visit the webpage for the podcast in which this question is answered.

[chapter podcast=1001476 track=16.10.04/Naked_Scientists_Show_16.10.04_1005763.mp3]  ...or Listen to the Answer[/chapter] or [download as MP3]

« Last Edit: 06/10/2016 10:21:32 by _system »

*

Offline neilep

  • Withdrawnmist
  • Naked Science Forum GOD!
  • *******
  • 20602
    • View Profile
Re: Is black a colour?
« Reply #1 on: 20/09/2016 11:38:20 »
hmmmm.. i always thought black AND white were deemed not true colours and that black, as stated above, is the absence of the absorption of light.....which, i guess could well be assigned to as a colour  !

Lets hope a passing Colourologist provides some assistance here !
Men are the same as women, just inside out !

*

Offline evan_au

  • Neilep Level Member
  • ******
  • 4315
    • View Profile
Re: Is black a colour?
« Reply #2 on: 20/09/2016 11:38:57 »
Black is the absence of visible light.
Adding any visible wavelengths to the light entering your eyes makes it non-black.

...and when they said "Orange is the new black", they weren't physicists saying it!

*

Offline PmbPhy

  • Neilep Level Member
  • ******
  • 2804
    • View Profile
Re: Is black a colour?
« Reply #3 on: 20/09/2016 15:02:54 »
Martin asked the Naked Scientists:
   Hi. Is black really a colour ? Or just the absence of light ? (visable light)
What do you think?
As stated above black is not a color but the absence of all light, i.e. the absence of color. White is a bit harder to say if it's a color. White light is a composed of a spectrum of other colors. That said, when a car dealer asks me what color I want my new car to be I'll always say "black." :)

*

Offline syhprum

  • Neilep Level Member
  • ******
  • 3928
    • View Profile
Re: Is black a colour?
« Reply #4 on: 20/09/2016 19:17:38 »
In the 4 colour printing process 4 colour separations are produced Y,C,M,K(black)  and the black separation is printed with black ink and referred to as one of the 4 colours
syhprum

*

Offline mrsmith2211

  • Jr. Member
  • **
  • 44
    • View Profile
Re: Is black a colour?
« Reply #5 on: 21/09/2016 00:14:36 »
In light the absence of all colors is black, in paint the presence of all colors is black, you decide.