Hey there Sign in to join this conversationNew here? Join for free

How can we trust our senses? Look at this optical illusion!

Announcements Posted on
    • Thread Starter
    • 0 followers
    Offline

    ReputationRep:
    How can trust our perception when we see things like this?:

    http://www.popularscience.co.uk/feat...rshadow-AB.jpg

    The squares labelled 'A' and 'B' are exactly the same colour!
    • 8 followers
    Offline

    ReputationRep:
    Mmmm strange :confused:
    • 3 followers
    Offline

    ReputationRep:
    ... says who?

    it doesn't look like it at all... is it just cos it's in the shadow?
    • 19 followers
    Offline

    ReputationRep:
    I've seen that before, and I still don't get it - all I see is 2 different shades
    • 0 followers
    Offline

    ReputationRep:
    Yeah they look completely different to me..
    • Thread Starter
    • 0 followers
    Offline

    ReputationRep:
    Trust me - the colours are different. If you are not convinved, put a hole in a piece of paper and move the hole over each square, and back again.
    • 0 followers
    Offline

    ReputationRep:
    (Original post by tami*)
    ... says who?

    it doesn't look like it at all... is it just cos it's in the shadow?
    Try using the colour picker in photoshop or paint. You'll see it's exactly the same color.

    I don't understand how it works either
    • 0 followers
    Offline

    ReputationRep:
    I was just a bit of a dork and pasted it onto MS Paint...then used the colour dropper tool thingy, to check if they were identical, and they are. How strange! They really don't look the same at all haha.
    • 19 followers
    Offline

    ReputationRep:
    Proof that they're the same shade:

    Spoiler:
    Show
    • 0 followers
    Offline

    ReputationRep:
    (Original post by HappinessHappening)
    Trust me - the colours are different. If you are not convinved, put a hole in a piece of paper and move the hole over each square, and back again.
    The colours are the SAME. You see them as different colours becuase of the different shades of backgroung. Trust me, I have covered this in my lectures. It's just way the visual system works.
    • 0 followers
    Offline

    ReputationRep:
    No, they are exactly the same. The illusion referrs only to the two squares labelled A & B specifically.

    Open the image with Photoshop, use eydropper on both squares - identical.
    • 3 followers
    Offline

    ReputationRep:
    I find blinking my eyes rapidly whilst looking at them, then stopping shows to them as the same. Dunno why.
    • 0 followers
    Offline

    ReputationRep:


    This shows quite well that they're the same colour.
    • 1 follower
    Offline

    ReputationRep:
    (Original post by Indievertigo)
    I find blinking my eyes rapidly whilst looking at them, then stopping shows to them as the same. Dunno why.
    What even gave you that idea, lol.
    • 0 followers
    Offline

    ReputationRep:
    Oh, ha. It's because of the colour of the letters. The light A makes the box look dark while the dark B makes the box look light.

    That and the shadows. Quite interesting.
    • 3 followers
    Offline

    ReputationRep:
    (Original post by Q_M)
    What even gave you that idea, lol.
    :rofl: I just got back from the opticians who was doing all sorts of things with to my eyes!
    • 0 followers
    Offline

    ReputationRep:
    Nothing is real!!!
    Trust nothing!!!

    :woo:
    • 2 followers
    Offline

    ReputationRep:
    (Original post by Glove.)
    I was just a bit of a dork and pasted it onto MS Paint...then used the colour dropper tool thingy, to check if they were identical, and they are. How strange! They really don't look the same at all haha.
    I did that too lol.
    • 0 followers
    Offline

    ReputationRep:
    (Original post by biomedical-scientist)
    The colours are the SAME. You see them as different colours becuase of the different shades of backgroung. Trust me, I have covered this in my lectures. It's just way the visual system works.
    May you mind enlightening us with the stuff that you have covered in your lectures? I am really curious about how the visual system works.

    Thanks
    • 1 follower
    Offline

    ReputationRep:

    That image is static, the beans aren't moving. wtfff

Reply

Submit reply

Register

Thanks for posting! You just need to create an account in order to submit the post
  1. this can't be left blank
    that username has been taken, please choose another Forgotten your password?

    this is what you'll be called on TSR

  2. this can't be left blank
    this email is already registered. Forgotten your password?

    never shared and never spammed

  3. this can't be left blank

    6 characters or longer with both numbers and letters is safer

  4. this can't be left empty
    your full birthday is required
  1. By joining you agree to our Ts and Cs, privacy policy and site rules

  2. Slide the button to the right to create your account

    Slide to join now Processing…

Updated: November 3, 2008
New on TSR

Your favourite film of the year?

For you personally what has been the best 2014 movie

Article updates
Useful resources
Reputation gems:
You get these gems as you gain rep from other members for making good contributions and giving helpful advice.