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Penrose Impossible Triangle

		My favorite illusion video Well, you asked. It's the link above. Spinning Spiral This spinning spiral will appear to move, even though it is does not! Incredible spiral arraws This is one of the new illusions added to the site. Makes a nice wallpaper for your computer too! Have some fun! Try the Ambigrams Section. An ambigram is defined as a word that is the same upside down. Very fun, and make great tattoos too!

Make your own Impossible Triangle

Well, we did the impossible - triangle, that is...
Now you can learn how.

This picture has not been edited,
yet it appears to be an impossible triangle!

This photo has not been edited one bit. This is a picture of the penrose impossible triangle that is sitting in front of me on my desk. If I look at it from the right angle, it appears exactly as it does in the picture above. Many people think it can't be done. But it is actually possible! And now, you can build your own "impossible triangle" in less than 5 minutes!

How did I do it? First, I studied the triangle, look at all the angles. Next, I whipped out my trusty scissors and started cutting away. It was a blur of strips of paper flying in the air and hitting the floor. And when I finished with some very pretty snowflakes... I got to work on doing the impossible. The impossible triangle, that is.

Many other sources said it couldn't be built, but I knew I had remembered seeing some pictures of it...

Honestly, after many hours of trial and error, I have come up with what I believe to be the best (and easiest) way to make your own. To make this incredibly easy, just download and print the PDF.

You could even color it in or shade it with pencil if you like. Or you can play around with the dimensions if you would like, but if you just follow the instructions, you'll have a perfect impossible triangle in less than 10 minutes. I urge you to print this out and try it! It's a lot of fun! And ... for now anyway... I'm making this printable penrose triangle PDF available for free.

If you make one, snap a picture of it from the perfect angle, and send it to me. I just may add it to the site!

New Video -

Updated: 4/18/07 Vũ Long sent pictures of his triangle. Fantastic pictures, and a little more interesting than the one above. He says "Thank u for the pdf instruction, here is some photos I`ve taken. It was quite easy to build!". Here are the pictures of the penrose triangle that he sent in:

Thanks to Johannes Wiberg for sending in the next picture. He's showcasing his cool computer and nice glowing keyboard with all the keys blackened out too. This guy just loves to make cool stuff!