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Original Usenet message from alt.ascii-art, 10 Nov 1999.
Re: Optical Illusions

Re: Optical Illusions

I really like one ...

Here are some things i noticed and some of my thoughts

> From: JE...@post9.tele.dk.nospam (JEZ)

Hey .. another Dane !

> ------------------------------------------------------------------------------
>  ___                     ___                        ___
>   | ||    _o _ ._  _ ()   | ._ _ ._  _  _ _o|_ | _   ||_ o._  _  _
>  _|_|||_|_>|(_)| |_> (_X _|_| | ||_)(_)_>_>||_)|(/_  || ||| |(_|_>
>                                 |                            _|    ..In ASCII
> ------------------------------------------------------------------------------

Nifty font.

> This is a collection of obscure creations and optical illusions made in ASCII.
> Some of these drawings may not be practically impossible alas just bizarre and
> intriguing. Sometimes looking closely can reveal a new perspective :)

Indeed he's right .. some of of theese depending on how you view them are either
possible or imposssible question is which is the more correct way to view them ...
The obvious or the one that is possible ?

I think all two (both is more correct but i think this one fits in)

> Penrose's Impossible Triangle (Tribar)
>            _____
>           /    /\
>          /    /  \
>         /    /    \
>        /    /  /\  \
>       /    /  /  \  \
>      /    /  /\   \  \
>     /    /  /  \   \  \
>    /    /__/____\   \  \
>   /              \   \  \
>  /________________\   \  \
>  \_____________________\ / Jugg and Grim


At first i did'nt even see the 3D effect .. and then its very possible.
But now ... wow.

> Escher's Waterfall
>
>                  _.-"""-._
>                .'         `.
>               /             \
>              |               |
>              |               |
>              |               |
>               \             /                              _.-"""-._
>              _.`.         .'.                            .'         `.
>             |`-._`-.._..-'_.-|                          /             \
>             |  _ `-._ _.-'   |                         |               |
>             | | `-._ " _.-'| |                         |               |
>             | |    || |    | |                         |               |
>             | |    || |    | |                          \             /
>             | |    || |    | |                          _`.         .'.
>             | |    || |    | |                         |`-.`-.._..-'.-'|
>             | |    || |    | |                         |    `-._.-'    |
>             | | _.-'| |_   | |                         | |`-._   _.-'| |
>             | |'_.-'| |_`-.| |                         | |   || |    | |
>            |_.-'    | | `-._ `._|`-._                  | |   || |    | |
>           /    /    | |     ``---._  `-._              | |   || |    | |
>          | / /    .-' `-._|`-._    ``-._ `-._          | |   || |    | |
>         || ||  / /|-| |-._     `-._     `--._`-._|`-._ | |   || |    | |
>            | |   ' || |\  `-._     `-._      ``---._  `| |   || |    | |
>         | - | | |  || | \  | |`-._     `-._|`-._    ``-| |`-.|| |    | |
>     _.-'    |   |  || |  \ | |    `-._          `-._   | |-._ | |._  | |
> _.-'     |     |   || |   \| |        `-._          `-.| |   `| |_ `-| |
>         |    |  |  || |    | |            `-._       _.| |    | | `.-| |
>         |   |  ||  || |    | |              _.-'|_.-'_.-'     | |_.-'  |
>          | | |  .  || |    | |          _.-' __.---''       _.| '      |
>         |   |  ||  || |    | |\_.-'|_.-'_.-''      _.-'|_.-'        _. |
>          | |  |    || |    | |'      _-        _.-'             _.-' | |
>         ||    ||   || |_.-'| |_.---''      _.-'             _  |     | |
> \          | |  |  || |_.-'| |    _.-'|_.-'             _.-'|| |     | |
>  \      |  ||    .'_| |    | |_.-'                  _.-'| | || |     | |
>   \     | |     |._ | |    | `-._               _.-'    | | || |     | |
>    \    ||  |  |   `| |    ```-._`-._|`-._  _.-'        | | || |     | |
>    |\_.-|       |      `-._      ``---._  `-._          | | || |     | |
>    |     |                 `-._|`-._    ``-._ `-._      | | || |     | |
>    |    || ||  |                    `-._     `--._`-._|`| | || |     | |
>    |       | |  |                       `-._      ``---.| |`|| |     | |
>    |    |   | | |`-._                       `-._|`-._   | |-.| |-._  | |
>    |        |      ||`-._                            `-.| |  | |._ `-| |
>    |    |    |  |  || |  `-._                         _.| |  | |  `-_| |
>    |    |   |  ||__ | |    | `-._            _.-'|_.-'_.-'   | |_.-'   |
>    |     | | |  ._.-| |.   | |   `-._    _.-' __.---''      _|         |
>    |    |   |  ||/  | | \  | |  _.-'|_.-'_.-''     _.-'|_.-'           |
>    |    ||    ||    | |  .'| |-' __.---''      _.-'                    |
>    |       | |  |   |.|   '| |-''     _.-'|_.-'                        |
>    |    |  ||  _.   | |  | | |    _.-'                                 |
>    |    | |  '  |   | |    | |_.-'                                     |
>    |    ||  |  | \  | | / _| '                                      _.-'
>    |_.-'     |   _`.| |'-'                                      _.-'
>    |`-._          _.|                                       _.-'
>    |    `-._  _.-'                                      _.-'
>    |        |'                                      _.-'
>    |        |                                   _.-'
>    |        |                               _.-'
>    |        |                           _.-'
>    |        |                       _.-'
>    |        |                   _.-'            Veronica Karlsson
>    |        |               _.-'
> _  |        |           _.-'
>  `-|_       |       _.-'
>      `-._   |   _.-'
>          `-.|.-'
>

Veronice .. this is amazing..

I like the idea that this maschine could run forever .. though that is impossible.

Only the universe .. that is the combined entity of everything could exchange energies back and
forth and keep moving and changing without losing energy - Because there is nothing to loose
energy to.

There's a magnet based version of this type of neverstopping maschine .. I'll try to look it up
and maybe draw it if it is interesting enough.

> Duchamp's Wooden Bed
>
>        _   ()
>   () .'_`'.||
>   ||/.| ||\ |
>   | /|| || ||         _   ()
>   || || || ||    () .'_`'.||
>   || || || ||    ||/.| ||\ |
>   || || |I-'`-._ | /|| || ||
>   ||_I'`_.-||-._`'| || || ||
>   m._ <'_  ||   `|| || || ||
>   i| `-._`-'|    || || |I-'|
>   c)     `-._`-._||_I'`_.-||
>              `-._` _.-'   ()
>                  ||       `
>                  ()
>                  `

I can't see why this is intriguing ... It's just a bed with no bottom

> Impossible Forks
>
>  __________________         __________________
> ()_________________\       /_________________()
>  ________________  |       |  ________________
> ()____________| |  |       |  | |____________()
>  ______________\|  |       |  |/______________
> ()_________________|       |_________________() Unknown artist
>

� like theese.

> 2-Dimensional Representation Of A 3-Dimensional Cross-Section Of A
> 4-Dimensional Cube
>
>           +___________+
>          /:\         ,:\
>         / : \       , : \
>        /  :  \     ,  :  \
>       /   :   +-----------+
>      +....:../:...+   :  /|
>      |\   +./.:...`...+ / |
>      | \ ,`/  :   :` ,`/  |
>      |  \ /`. :   : ` /`  |
>      | , +-----------+  ` |
>      |,  |   `+...:,.|...`+
>      +...|...,'...+  |   /
>       \  |  ,     `  |  /
>        \ | ,       ` | /
>         \|,         `|/   mn, 7/97
>          +___________+


uh uh uh .. I'll have a go !

A 1-Dimensional Representation Of A 2-Dimensional Representation Of A 3-Dimensional
Cross-Section Of A
4-Dimensional Cube Inside A 5-Dimensional Ball

____________________________________


Good .. is'nt it ?  A perfect ascii representation - well almost , since with no Y-axis the
line is infinity times too big of what is should have been.

> Impossible Chess Board
>                                            +
>                                            ()
>                                            )(
>                 _____                    __)(_
>                /\    \                  /\/__\\
>         _____ /  \____\          ____()/  \____[]
>         \    \  /`\    \         \   )(  /`\   )(
>          \____\/___\____\         \__)(\/___\__)(\
>           \    \    \    \         \/__\\    \/XX\\
>            \____\____\____\         \____\____\____\  dr


Very possible .. I can't see the impossible bit here.


> Obasciililthingy
>                         ,
>  ,,            '\      /+
>   \',         +  \    / '
>    \ ',       '   \  / +
>     \  ',    +     \/  '
>      \   ',  '     /  +
>       \    '+     /   '
>        \    '    /   +\
>         \  +    /    ' \
>          \ '   /    +   \
>           +   /     '    \
>           '  /     +',    \
>          +  /\     '  ',   \
>          ' /  \   +     ',  \
>         + /    \  '       ', \
>         '/      \+          ',\
>         '                     ''  Krogg?


I saw this recently .. and yes I believe it _was_ Krogg...
Well that spot his good reputation as a porn artist.

Hey Krogg - that will make a great sig :

"Krogg - Porn artist extraordinare"

> /|/ \|\ /|/ \|\ /|/ \|\ /|/
> /|/ \|\ /|/ \|\ /|/ \|\ /|/
> /|/ \|\ /|/ \|\ /|/ \|\ /|/
> /|/ \|\ /|/ \|\ /|/ \|\ /|/
> /|/ \|\ /|/ \|\ /|/ \|\ /|/
> /|/ \|\ /|/ \|\ /|/ \|\ /|/
> /|/ \|\ /|/ \|\ /|/ \|\ /|/
> /|/ \|\ /|/ \|\ /|/ \|\ /|/
> /|/ \|\ /|/ \|\ /|/ \|\ /|/ (PS)

This one is especially mindbogling inascii because you KNOW the lines MUST BE straight.

>                      _______________
>                     /               /|
>                    /               / |
>                   /               /  |
>                  /               /   /
>                 /               /   /
>                /_______________/   /
>               /|               |  /
>              / |               | /
>             /  |____       ____|/
>            /  /    /|     |    /
>           /  /    / |     |   /
>          |  /    /  |     |  /
>          | /    /   | pjl | /
>          |/___ /    |_____|/
>               |    /      /
>               |   /      /
>               |  /      /
>               | /      /
>               |/______/
>

Depending on how you look at this it is either possible or not.


>                       ,-"~"-.
>                      /  ._.  \
>                     :  /   \  :
>                     !  !    : !
>                     ;  !    ; ;
>                    /    \  / /
>                   /      \/ /
>                  /       /`/
>                 /       / /\
>                 |     .`-'  |
>                 |    .'.'   |
>                 |    : :    |
>                 |  ..: :..  |
>                 |.' .' `. '.|
>                 `\ '     ` /'
>                   `--___--'  mn
>

I actually collect weird bottles - i would love to have one of theese.


>               ________
>              /\       \
>             /  \       \
>            /    \       \
>           /      \_______\
>           \      /       /
>         ___\    /   ____/___
>        /\   \  /   /\       \
>       /  \   \/___/  \       \
>      /    \       \   \       \
>     /      \_______\   \_______\
>     \      /       /   /       /
>      \    /       /   /       /
>       \  /       /\  /       /
>        \/_______/  \/_______/ logicko
>

Also ddepending on how you look at it ... possible or not

>                ________
>               /\       \
>              /  \       \
>             /    \       \
>            /      \_______\
>            \      / ___   /
>          ___\    / / __\_/___
>         /\   \  /  \/\       \
>        /  \  /\/___/  \       \
>       /    \ \___/ \__ \       \
>      /      \_______\ \ \_______\
>      \      /       /_/ /       /
>       \    /       /   /       /
>        \  /       /\  /       /
>         \/_______/  \/_______/ Martin

Impossible.

>          ___         ____
>       .'|   |      .'\  /
>     .'  |___|    .'   \/
>   .'  .'   .'  .'    .'
> .'__.'   .'  .'    .'
> |   |  .'   /\   .'
> |___|.'    /__\.'    (PS)
>

It took me a second glace to see the imposssible bit.


> HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH
> HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHF"""    ""HHHHHHHH
> HHHHHHHHHHHHHHHHF""    / "/HHHHHHF| | "HHHHHHF"          `HHHHHHH
> HHHHHHHHHHHHF""       /  /  "HHHF | |  dHHHF"\            `HHHHHH
> HHHHHHHHHH\"         /  /    `HH  | | dHHHF \ \            dHHHHH
> HHHHHHHHH\ \        /  /      HHb | |dHHHH  /  \           HHHHHH
> HHHHHHHHF \ \______/  /      dHHHh| |HHHHb / /\ \         dHHHHHH
> HHHHHHHHb  \         /      dHHHHH| |HHHHH/ /  \ \       dHHHHHHH
> HHHHHHHHHb / ______  \     dHHHHF"| |""HH/ /    \ \     dHHHHHHHH
> HHHHHHF""H/ /      \  \  .dHHHF  / _ \ `/ /      \ \  .dHHHHHHHHH
> HHHHHF   / /b.      \  \dHHHF   / / \ \/ /Hb      \ \dHHHHHHHHHHH
> HHHHF   / /"HHb.     \dHHHHF   / /   \  /HHHb.    .\ \HHHHHHHHHHH
> HHHF   / /   "HHhooo4HHHHHHb  / /     \ dHHHHHhoo4HH\ \F"" ""HHHH
> HHF   / /     `HHHHHHHHHHHHHb/ /       dHHHHHHHHHHF""\ \     "HHH
> HH   / /       HHHF"    \  \/ /.      dHHHHHHF""      \ \     HHH
> HH  / /       dHF"       \   /HHb.  .dHHHHF\"          \ \    "HH
> HHb/ /      .dHF          \  \"HHHhoHHHHF"\ \           \ \____HH
> HHHh/     .dHHF            \  \ "HHHHHHF   \ \          / _____HH
> HHHHb    dHHHF              \  \ `HHHHF     \ \        / /     HH
> HHHHHkoo4HHHH               /   \_`HHH______/  \      / /     dHH
> HHHHHHHHHHHHH              /  _____`HHb________ \    / /      HHH
> HHHHHHHHHHHHH             /  /      HHH        \ \  / /      dHHH
> HHHHHHHHHHHHHb.          /  /       HHHb        \ \/ /      dHHHH
> HHHHHHHHHHHHHHHb.       /  /       dHHHH         \  /      dHHHHH
> HHHHHHHHHHHHHHHHHb.    /  /       dHHHHHb        /  \    .dHHHHHH
> HHHHHHHHHHHHHHHHHHHb._/  /      .dHHHHHHHb      / /\ \ .dHHHHHHHH
> HHHHHHHHHHHHHHHHHHHHHHb./     .dHHHHHHHHHHb.   / /  \ dHHHHHHHHHH
> HHHHHHHHHHHHHHHHHHHHHHHHHhooo4HHHHHHHHHHHHHHb./ /  .dHHHHHHHHHHHH
> HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHhooo4HHHHHHHHHHHHHH
> HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHKrogg98HHHH

This i don't get .. neither impossible or intriguing - just some weird shapes

                                                            | | ____|__  /
>  .+'''+.         .+'''+.         .+'''+.               _  | |  _|   / /
> <<<<** Jesper B. Nielsen je...@post9.tele.dk **>>>>     | |_| | |___ / /_
>          '+.,.+'         '+.,.+'         '+.,.+'       \___/|_____/____|

Nice wave effect on the sig..

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From: "Christian 'CeeJay' Jensen" <REM...@CeeJay.findhere.com>
Subject: Re: Optical Illusions
Date: 1999/11/10
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