Page 1 of 3 123 LastLast
Results 1 to 10 of 23

Thread: The problem with arguing about shades of grey.

  1. #1
    Site Caretaker Dave A's Avatar
    Join Date
    May 2006
    Location
    Durban, South Africa
    Posts
    22,002
    Thanks
    3,175
    Thanked 2,577 Times in 2,174 Posts
    Blog Entries
    12

    The problem with arguing about shades of grey.

    How good is your eyesight?

    Which is a darker shade of grey, block A or block B?

    Click image for larger version. 

Name:	Grey_square_optical_illusion.jpg 
Views:	137 
Size:	12.3 KB 
ID:	1848

  2. #2
    Diamond Member Neville Bailey's Avatar
    Join Date
    Nov 2010
    Location
    Westville, Durban
    Posts
    2,647
    Thanks
    44
    Thanked 438 Times in 384 Posts
    There is only one shade of grey - block A.

    The green cylinder is casting a shadow over the white block B, making it appear to be a light grey.
    Neville Bailey - Sage Pastel Accounting Consultant
    Phone: 031 521 0080 or 087 095 7895
    neville@accountingsoftwaresupport.co.za
    www.accountingsoftwaresupport.co.za
    IronTree Online Solutions

    "Give every person more in use value than you take from them in cash value."
    WALLACE WATTLES (1860-1911)

  3. #3
    Moderator IanF's Avatar
    Join Date
    Dec 2007
    Location
    Jhb
    Posts
    2,659
    Thanks
    195
    Thanked 526 Times in 402 Posts
    I used tell my customers printing relies on optical illusion, but I always got a quizzical look back. If you have a 8x magnifying glass look at a pictures of a person from a magazine through it. You should see little dots, because the eye can't magnify to any great extent we can use just the 4 process colours to print in full colour.
    Only stress when you can change the outcome!

  4. #4
    Site Caretaker Dave A's Avatar
    Join Date
    May 2006
    Location
    Durban, South Africa
    Posts
    22,002
    Thanks
    3,175
    Thanked 2,577 Times in 2,174 Posts
    Blog Entries
    12
    Quote Originally Posted by Neville Bailey View Post
    There is only one shade of grey - block A.
    So are you saying block B isn't a shade of grey?

  5. #5
    Diamond Member Neville Bailey's Avatar
    Join Date
    Nov 2010
    Location
    Westville, Durban
    Posts
    2,647
    Thanks
    44
    Thanked 438 Times in 384 Posts
    Quote Originally Posted by Dave A View Post
    So are you saying block B isn't a shade of grey?
    Let's not start arguing now!

    No, block B is white - it just appears to be grey coz it's in the shadow of the green cylinder.

    It's a trick question, I tell you!
    Neville Bailey - Sage Pastel Accounting Consultant
    Phone: 031 521 0080 or 087 095 7895
    neville@accountingsoftwaresupport.co.za
    www.accountingsoftwaresupport.co.za
    IronTree Online Solutions

    "Give every person more in use value than you take from them in cash value."
    WALLACE WATTLES (1860-1911)

  6. #6
    Site Caretaker Dave A's Avatar
    Join Date
    May 2006
    Location
    Durban, South Africa
    Posts
    22,002
    Thanks
    3,175
    Thanked 2,577 Times in 2,174 Posts
    Blog Entries
    12
    Quote Originally Posted by Neville Bailey View Post
    It's a trick question, I tell you!
    Oh it is a trick question

    Would you believe me if I told you that Block A and Block B are both the same colour?

  7. #7
    Gold Member daveob's Avatar
    Join Date
    Feb 2008
    Location
    Amanzimtoti
    Posts
    655
    Thanks
    107
    Thanked 118 Times in 103 Posts
    I would say that "A" and "B" are the same colour ( the letters themselves ) but the blocks they are located on, are not the same.
    Watching the ships passing by.

  8. #8
    Diamond Member tec0's Avatar
    Join Date
    Jun 2009
    Location
    South Africa
    Posts
    4,313
    Thanks
    1,696
    Thanked 442 Times in 389 Posts
    Blog Entries
    3
    Excluding the black frames in my picture and the green on the picture the “greys” are shown beneath thus concluding that they are all a variation of grey. However quantum physicists now belief that matter cannot exist without mind entering into it. So it boils down to a point of view and mind set.

    Click image for larger version. 

Name:	grey.jpg 
Views:	117 
Size:	3.3 KB 
ID:	1849
    peace is a state of mind
    Disclaimer: everything written by me can be considered as fictional.

  9. #9
    Diamond Member AndyD's Avatar
    Join Date
    Jan 2010
    Location
    Cape Town
    Posts
    4,758
    Thanks
    555
    Thanked 905 Times in 731 Posts
    Quote Originally Posted by Dave A View Post
    Oh it is a trick question

    Would you believe me if I told you that Block A and Block B are both the same colour?
    Yes I would......they're both gray.
    _______________________________________________
    I am special and so is Vanash.
    _______________________________________________

  10. #10
    Gold Member daveob's Avatar
    Join Date
    Feb 2008
    Location
    Amanzimtoti
    Posts
    655
    Thanks
    107
    Thanked 118 Times in 103 Posts
    OK. Have just put this in photoshop, colour sampled the A block, and painted a wide line from A to B. Guess what ....
    Watching the ships passing by.

Page 1 of 3 123 LastLast

Similar Threads

  1. Problem Member
    By Gladys in forum General Business Forum
    Replies: 6
    Last Post: 06-Nov-10, 11:05 AM
  2. Porcupine problem
    By AndyD in forum Pest Control Industry Forum
    Replies: 15
    Last Post: 24-Mar-10, 04:58 AM
  3. [Question] Problem with members of CC
    By anakin in forum General Business Forum
    Replies: 23
    Last Post: 19-Mar-09, 01:05 PM
  4. Server problem
    By Dave A in forum Administrative issues
    Replies: 11
    Last Post: 17-Aug-08, 01:57 PM
  5. HSPDA problem
    By Dave A in forum Technology Forum
    Replies: 41
    Last Post: 11-Feb-08, 09:11 PM

Did you like this article? Share it with your favourite social network.

Did you like this article? Share it with your favourite social network.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •