Undeniable Friday: The Teleporting Cat Trick
It's Undeniable Friday! Every Friday, in addition to an odd little factoid, UndeniableFacts.com gives you a fun puzzle, illusion, or activity to enjoy and share.
Today: The Teleporting Cat Trick
This is a truly astounding illusion which you can use to bewilder your friends. To be honest, you can use any small animal or object for the trick, but I think a cat gives it an air of mystique. The video below shows the illusion performed by my cat Benjamin Franklin. (I was reluctant to name him after such a scoundrel, but I already had Crenshaw and Spartacus, and I had to complete the set).
This trick uses a technique first used by the ninjas of Japan, over a thousand years ago. The idea behind the trick is simply a matter of bending light around the cat. To achieve this you will need two concave mirrors, a convex mirror, and a normal mirror. The diagram below shows exactly what kind of mirrors you need, and how to position them.
Because I like to keep it scientific, I used plain wooden "teleportation gates", but you may want to decorate your setup to look more elaborate and "technological". A word of warning however: don't place any light sources too close to the mirror arrangement. Doing so may cause light echoes, which can be dangerous.
After setting the mirrors up as in the diagram, get your cat to walk through it. The cat will "disappear" for a moment, as if it were teleporting from one side to the other. Pretty neat!
Today: The Teleporting Cat Trick
This is a truly astounding illusion which you can use to bewilder your friends. To be honest, you can use any small animal or object for the trick, but I think a cat gives it an air of mystique. The video below shows the illusion performed by my cat Benjamin Franklin. (I was reluctant to name him after such a scoundrel, but I already had Crenshaw and Spartacus, and I had to complete the set).
This trick uses a technique first used by the ninjas of Japan, over a thousand years ago. The idea behind the trick is simply a matter of bending light around the cat. To achieve this you will need two concave mirrors, a convex mirror, and a normal mirror. The diagram below shows exactly what kind of mirrors you need, and how to position them.
Because I like to keep it scientific, I used plain wooden "teleportation gates", but you may want to decorate your setup to look more elaborate and "technological". A word of warning however: don't place any light sources too close to the mirror arrangement. Doing so may cause light echoes, which can be dangerous.
After setting the mirrors up as in the diagram, get your cat to walk through it. The cat will "disappear" for a moment, as if it were teleporting from one side to the other. Pretty neat!
Labels: cat, teleport, undeniable friday
posted by Dan Serena at 4:46 PM
46 Comments:
Ok seriously how did you do this?
Dan - Humanity : 1-0 !
I thought ninja's are not seen because they are against the light source.
I knew it was a pocket mirror kit!
Can you take some photos of the mirrors? Frame is frozen when the cat walks across, it's trivial to do this effect with a 4pt matte in final cut pro or any other video editor.
I just did this myself using these instructions, it works perfectly. I didn't use a cat, though. I used a mongoose. You wouldn't believe how pissed off that fucker got after it teleported.
kool!
How about trying it with a human?
Lies make baby Jesus cry.
The 'Philadelphia Experiment' on a cat?
http://www.history.navy.mil/faqs/faq21-1.htm
oke, where are the gate's in the drawing?
The enemy gate is down.
Next time when you cut to the next scene, make sure the camera has come to a complete stop next time. Its a bit abrupt when you put the camera down. Nice split screen illusion though.
The prospect of getting a cat to 'just' do anything is way to difficult...
I'm going to have to try this...
This is fake. Infact, this whole site is FAKE.
such a hater...
So how and when would a ninja use concave mirrors and math to make himself appear and disappear in battle or an ambuch situation?
bend light haha
matt- don't you know that ninjas were very good at solving complex mathematical equations on the fly? It's part of the secret of their battle prowess... calculating the trajectories of several fists, feet and other weapons at once is no mean feat.
Ninjas are from China not from Japan! Samurais are from Japan, Dumbo!
Also I used a shrink rayed horse for this trick! it works better as it runs thru the egyptian robot built frames faster than a cat
It is FAKE! Even by explaning using the diagram, the light passes throught the invisible region. Which means if there is something there, it will block the passage of light and it will no longer be "invisible"
I could be done with perspective and very carefully made screen that fits the background nicely.
Anyone seen Indiana Jones and the Last Crusade? Where he has to take a "leap of faith" on a seemingly invisable bridge?
But the bridge is just precisely painted to fit the rocks behind?
Sadly, we cant "bend" light to make invisability, at least, not more then one colour around a small very precise area.
This is complete B.S. Any idiot can see those mirrors are at a distortion bias of 24 degrees, not 23. The other mirrors are correctly positioned, obviously, and the science is perfectly sound, but I don't know what kind of jerks you think we are because that is a fake cat.
Some people have ABSOLUTELY no sense of humor and ruin it for everyone else... some people have no brains and make it even funnier for the rest of us.
Of course we can bend light to make something invisible. Haven't you ever heard of magicians disapearing using "smoke and MIRRORS"?
Anyway, regardless of whether or not the Eldridge actually had a cloaking device, we can reproduce the effect using a method similar to the one vaguely described.
Next time you say "pigs can't fly", look up, just in case one is about to land on you.
Thats pretty friggn amazing. I just tried it but my cat kept walking into the mirrors! Stupid cat. Anyway, I think you may need to also give a diagram on how you were able to make your cat walk right thru the wooden frames. WOW that was pretty impressive. Actually maybe that can be your next video. How to walk thru solid objects w/o dieing. KOOL...
please modify the system like this to call "teleporting".
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>Edward Hansen said...
>Ninjas are from China not from
>Japan! Samurais are from Japan,
>Dumbo!
Ninja are not from China.
'Chinese stars' aren't Chinese either.
Ninja are from Japan, just like Samurai. Ninja and Samurai often fought, because Ninja were originally peasant farmers trying to defend themselves from Samurai but lacked the skill and weapons to confront the Samurai directly. They solved the weapons problem by using farm tools and captured Samurai swords. They solved the skill problem through long practice.
Go read a book.
Help!
I tried it with my sister's cat, Benny Southstreet (not the brightest bulb in the litter). He disappeared into the first gate, but he didn't come out the other one! What am I going to do?
poor magic lantern!
You may just have to employ the services of your friendly local ninja!
Well, fake or not it was cute. :-)
Nope.
Sorry, guys, I've been a professional network TV editor for 20 years. This is fake.
The proof is right there for you to see, too.
If you jump ahead frame-by-frame just before the camera "settles" abruptly and you look very closely, you can see an artifact of the photoshop "mask" at the bottom, just below the wall's baseboard. A thin horizontal black line that disappears on the cut.
Props to the poster, well done. But hardly earth-shattering or scientific or OOOOO magical. I could do the same thing in about 3 to 4 minutes by duplicating a second video layer over the first, and using some judicious cropping or photoshopping.
That's why the picture abruptly stops before the cat walked through. He had to cut to a lockdown (or tripod) shot. If the camera moved at all, the trick would become VERY apparent.
Looks elsewhere for scientific tricks, kids. it ain't here. :)
Well anyway, you dont need to make zoom in and see the artifact of the photoshop mask, "pro guy"...
Just look at the video normally and you'll see the trick. The cat is even not on the same line than the doors ! The perspective is missing cause the cat seems to be behind the doors, on another line.
I can do that in After effects in 5 minutes tops. just duplicate the layer, freeze frame that background without the cat and mask it... cheaper than buying all those mirrors and figuring out you're an idiot.
>Fred said...
>Nope.
>Sorry, guys, I've been a >professional network TV editor >for 20 years. This is fake.
YOU are a fake. I've been a professional PHOTOSHOP editor for THIRTY years and this is 100% GENUINE! I can tell by the pixels.
What's more, I checked the Who's-Who of network TV editors and not one single one of them was ever named "Fred".
umm you said get a cat to walk through it how do you do that when there are mirrors in the way..=| ??
Do not try and bend the light. That's impossible. Instead... only try to realize the truth that there is no light. Then you'll see, that it is not the light that bends, it is the cat.
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If you watch closely you will see that the cat does not pass through the first two boards, it goes behind the whole thing. There for showing you the illusion of a teleporting cat.
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Great illusion ! Thx for posting the explanation
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