Results 1 to 15 of 15

Thread: Carbon Dioxide

  1. #1
    Gold Lounger
    Join Date
    Feb 2004
    Location
    Cape Town, RSA
    Posts
    3,444
    Thanks
    0
    Thanked 1 Time in 1 Post

    Carbon Dioxide

    Why does red text turn upside-down in the neck of the glass, where as blue text does not???
    Regards,
    Rudi

  2. #2
    Platinum Lounger
    Join Date
    Jan 2001
    Posts
    3,788
    Thanks
    0
    Thanked 1 Time in 1 Post

    Re: Carbon Dioxide

    <span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">DID HE DECODE DIOXIDE - I DID</span hide>

  3. #3
    Gold Lounger
    Join Date
    Feb 2004
    Location
    Cape Town, RSA
    Posts
    3,444
    Thanks
    0
    Thanked 1 Time in 1 Post

    Re: Carbon Dioxide

    Your text will not turn upside down at all!!!
    Regards,
    Rudi

  4. #4
    Platinum Lounger
    Join Date
    Nov 2001
    Location
    Melbourne, Victoria, Australia
    Posts
    5,016
    Thanks
    0
    Thanked 0 Times in 0 Posts

    Re: Carbon Dioxide

    First thought is that the stem of the glass is behaving as a (variable) convex lens.
    <span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">The word "carbon" is outside the focal length, while the "dioxide" sits less than a focal length, from the focal plane.</span hide>

    OTOH, maybe I'm up the wrong tree altogether.

    Alan

  5. #5
    Gold Lounger
    Join Date
    Feb 2004
    Location
    Cape Town, RSA
    Posts
    3,444
    Thanks
    0
    Thanked 1 Time in 1 Post

    Re: Carbon Dioxide

    Interesting, try -- but most definitely up the wrong tree there!!!
    Regards,
    Rudi

  6. #6
    5 Star Lounger Ruff_Hi's Avatar
    Join Date
    Feb 2001
    Location
    New York, New York, USA
    Posts
    768
    Thanks
    0
    Thanked 0 Times in 0 Posts

    Re: Carbon Dioxide

    Alan - I think that the answer to your post is WOOF.

    I wonder if it works for "carbon dioxide"?
    (Location Australia, then UK, but now USA. Heart, outlook, attitude, etc always Australian)
    Quote: "All Happiness is the release of internal pressure"

  7. #7
    WS Lounge VIP sdckapr's Avatar
    Join Date
    Jul 2002
    Location
    Pittsburgh, Pennsylvania, USA
    Posts
    11,225
    Thanks
    14
    Thanked 342 Times in 335 Posts

    Re: Carbon Dioxide

    <span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">It did turn upside down. Dioxide is the same upside down it is symmetrical</span hide>

    Steve

  8. #8
    4 Star Lounger
    Join Date
    Sep 2002
    Location
    Stafford, Staffordshire, England
    Posts
    585
    Thanks
    0
    Thanked 0 Times in 0 Posts

    Re: Carbon Dioxide

    It was being viewed in a mirror.
    <font color=blue><font face="Script MT Bold"><big>Rob</big></font face=script></font color=blue>

  9. #9
    4 Star Lounger
    Join Date
    Aug 2002
    Location
    Dallas, Texas, USA
    Posts
    594
    Thanks
    0
    Thanked 0 Times in 0 Posts

    Re: Carbon Dioxide

    I would guess that: <span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">Red light refracts differently then blue light, different part of the spectrum, different angle? Not sure....</span hide>

  10. #10
    Gold Lounger
    Join Date
    Feb 2004
    Location
    Cape Town, RSA
    Posts
    3,444
    Thanks
    0
    Thanked 1 Time in 1 Post

    Re: Carbon Dioxide

    Symmetrical is the key !
    See tony's answer in <post#=414132>post 414132</post#> to get a great example!
    Regards,
    Rudi

  11. #11
    Gold Lounger
    Join Date
    Feb 2004
    Location
    Cape Town, RSA
    Posts
    3,444
    Thanks
    0
    Thanked 1 Time in 1 Post

    Re: Carbon Dioxide

    Drew - this is the common misconception. It actually has nothing to do with the colours and refraction of light!
    It's just a great trick!
    Regards,
    Rudi

  12. #12
    4 Star Lounger
    Join Date
    Aug 2002
    Location
    Dallas, Texas, USA
    Posts
    594
    Thanks
    0
    Thanked 0 Times in 0 Posts

    Re: Carbon Dioxide

    <span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">Got it. DIOXIDE is upside down too, just like Carbon is, but DIOXIDE is the same upside down or not. DUH! Don't know why I didn't catch that. It wouldn't work if you used carbon dioxide, instead of CARBON DIOXIDE.</span hide>

  13. #13
    Gold Lounger
    Join Date
    Feb 2004
    Location
    Cape Town, RSA
    Posts
    3,444
    Thanks
    0
    Thanked 1 Time in 1 Post

    Re: Carbon Dioxide

    YEP, HAS TO BE CAPITALS --- and i'm not screaming, just stating a point! <img src=/S/smile.gif border=0 alt=smile width=15 height=15>
    Regards,
    Rudi

  14. #14
    Platinum Lounger
    Join Date
    Nov 2001
    Location
    Melbourne, Victoria, Australia
    Posts
    5,016
    Thanks
    0
    Thanked 0 Times in 0 Posts

    Re: Carbon Dioxide

    I'd still maintain that the same effect could be achieved with two appropriate convex lenses, but I realize that the simpler and therefore more elegant solution is usually the preferred one. <img src=/S/smile.gif border=0 alt=smile width=15 height=15>

    Alan

  15. #15
    Gold Lounger
    Join Date
    Feb 2004
    Location
    Cape Town, RSA
    Posts
    3,444
    Thanks
    0
    Thanked 1 Time in 1 Post

    Re: Carbon Dioxide

    Three cancave and one convex lens held diagonally between each other will also trick the mind when held cross-diagonaly under the word DIOXIDE, but only if written in green highlighter. Not so elegant, but mostly prefered if some beverage intake was more than sufficient! <img src=/S/rofl.gif border=0 alt=rofl width=15 height=15> <img src=/S/drop.gif border=0 alt=drop width=23 height=23> <img src=/S/crazy.gif border=0 alt=crazy width=15 height=15>
    Regards,
    Rudi

Posting Permissions

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