How was this impossible dog house built?

[wolram]

http://www.planetperplex.com/en/item61

So without peeking ,how has he done it?

 

[Cyrus]

Thats a rotten trick to play on me worlram.

 

[edward]

http://www.planetperplex.com/en/item61

So without peeking ,how has he done it?

He used blivet technology developed during WWII.

http://catb.org/~esr/jargon/html/B/blivet.html

 

[wolram]

Hey everybody, where is everybody else? it seems ever so quite
here abouts, is it holiday time in the USofA? or has everybody gone
to a party without ME?

 

[Danger]

It's actually very easy to construct one of those, but your camera has to be absolutely in the perfect position for it to work. Also, it won't work in 3D.

 

[hypatia]

lol Even the puppies look confused.
And no Wolly, not a holiday per-say, but spring has hit! Today we broke record highs, with 78 degrees. So I found myself outside playing today.

 

[Ki Man]

Hey everybody, where is everybody else? it seems ever so quite
here abouts, is it holiday time in the USofA? or has everybody gone
to a party without ME?

its not a holiday, quite the opposite. its a monday.

 

[wolram]

lol Even the puppies look confused.
And no Wolly, not a holiday per-say, but spring has hit! Today we broke record highs, with 78 degrees. So I found myself outside playing today.

I saw the sun on sunday, i thought it had gone forever, i mean even
my car is growing moss.

 

[robphy]

http://www.andrewlipson.com/escher/belvedere.html
http://homepage.ntlworld.com/andrew.lipson/escher/lego_belvedere.jpg