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(Boing Boing)   The technology involved in making something properly invisible is so mind-bogglingly complex that 999,999,999 times out of a billion it's simpler just to take the thing away and do without it. Or maybe not   (boingboing.net) divider line 36
    More: Cool, invisibility, technical university, Dumbledore, protein complex, gravitational lensing  
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14365 clicks; posted to Main » on 26 Feb 2013 at 9:28 AM (1 year ago)   |  Favorite    |   share:  Share on Twitter share via Email Share on Facebook   more»



36 Comments   (+0 »)
   
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2013-02-26 08:51:15 AM
I don't see it
 
2013-02-26 08:54:59 AM
That sounds like somebody else's problem
 
2013-02-26 09:34:01 AM
Maybe you could get a friend with an interstellar trucking company to help out.
 
2013-02-26 09:34:34 AM
Yeah, now let's see you do it with a real-world background containing detail, not a handful of soft-edged vertical lines.

/I have an invisibility cloak, too. I paint a wall, stand you in front of it, and paint you the same color.
 
2013-02-26 09:37:42 AM
Nicely done, subby, and thanks for all the fish.
 
2013-02-26 09:41:17 AM
"Error (509)
This account's public links are generating too much traffic and have been temporarily disabled! "

Dropbox FTL! Hello YouTube anyone?
 
2013-02-26 09:41:35 AM

DammitIForgotMyLogin: That sounds like somebody else's problem


Came here for that, leaving satisfied.
 
2013-02-26 09:53:12 AM

Driedsponge: DammitIForgotMyLogin: That sounds like somebody else's problem

Came here for that, leaving satisfied.


Ditto
 
2013-02-26 09:55:12 AM
www.dropbox.com
Awwww. I wanted video dangit.
 
2013-02-26 10:03:13 AM
The picture kinda reminds me of the predator cloak.

storiesbywilliams.files.wordpress.com
 
2013-02-26 10:09:49 AM

Petey4335: [www.dropbox.com image 574x388]
Awwww. I wanted video dangit.


see how well it works!
 
2013-02-26 10:10:18 AM
This link has a much better picture and description of what's going on. I'm pretty sure that the BoingBoing writers are inbred monkeys so don't bother trying to get any useful information out of that site.
 
2013-02-26 10:35:31 AM

Petey4335: [www.dropbox.com image 574x388]
Awwww. I wanted video dangit.


Well, unfortunately...

*glasses*

You can't see it.

YYYYYYEEEEEEEEEEEEEAAAAHH!
 
2013-02-26 10:39:48 AM
Just use an SEP field.
 
2013-02-26 10:41:40 AM
Great, something that will make me more invisible to women.
 
2013-02-26 11:00:40 AM
Serious question here: are you actually able to see through the object to the wall behind it? And if there was something that you didn't want invisible behind the calcite, would it be visible at a different distance behind it?
 
2013-02-26 11:16:59 AM

mr_fulano: Serious question here: are you actually able to see through the object to the wall behind it? And if there was something that you didn't want invisible behind the calcite, would it be visible at a different distance behind it?


What if you wear an invisibility cloak, and behind you is a guy with an invisibility cloak?  Will the second guy be double invisible?
 
2013-02-26 11:22:33 AM
Can't we just work on the SEP field?  I hear that is much easier to make and uses a lot less energy.
 
2013-02-26 11:47:59 AM
Simple solution: We can't see air, right? Just make air-colored paint, and tah-dah, you have invisibility!
 
2013-02-26 11:49:35 AM

mr_fulano: Serious question here: are you actually able to see through the object to the wall behind it? And if there was something that you didn't want invisible behind the calcite, would it be visible at a different distance behind it?


No, you see around the object to the wall behind it.  It would be perceived as being the same distance.  (If not, the wall would appear to be magnified or shrunk at intersection and the box would only work for fixed distances).

Think of this as looking through a periscope, where you don't see the periscope cause it's made of magic crystals.
 
2013-02-26 12:30:16 PM

mr_fulano: Serious question here: are you actually able to see through the object to the wall behind it? And if there was something that you didn't want invisible behind the calcite, would it be visible at a different distance behind it?


Nope. You're seeing part of the wall behind it, and then seeing a partial reflection of a different part of the wall where the paper "should" be. This is part of the reason the backgrounds used for this are either solid colors or vertical stripes. If you had any real world image behind the box (anything lacking any sort of vertical and horizontal symmetry) you'd be able to see the hidden region pretty clearly.

This makes for a fun parlor trick, but it's not a cloak by any definition of the word; just a cleverly cut crystal.
 
d3
2013-02-26 12:30:48 PM
I had an invisibility cloak. But I forgot where I put it. Now I can't look for it.
 
2013-02-26 12:55:36 PM
Have you painted it pink first?
 
2013-02-26 12:58:55 PM
Did anyone point out that if a person was the object being made invisible using this technology they would not be able to see out of the cloak? Not very useful, but a neat effect.
 
2013-02-26 01:28:12 PM
Great, what am I supposed to do with all these Lux-O-Valves, Refracto-Nullifiers, and Spectrum-Bypass-O-Matics that I've got?
 
2013-02-26 01:35:39 PM
Hey, what is with the new moon?
 
2013-02-26 02:02:22 PM

geocacherphil: Hey, what is with the new moon?


That's no moon.
 
2013-02-26 03:31:04 PM

colinspooky: I don't see it


Not sure if the 404 error counts as ironic or not.  I'd better ask an expert.  She's from Canada, though.  You wouldn't know her.
 
2013-02-26 04:57:22 PM
Sounds like the hardest night's work in history.
 
2013-02-26 05:46:57 PM

Profedius: Did anyone point out that if a person was the object being made invisible using this technology they would not be able to see out of the cloak? Not very useful, but a neat effect.



Could'nt you just drill a hole and mount a camera?

Oh and...
3.bp.blogspot.com
 
2013-02-26 06:38:13 PM
24.media.tumblr.com
 
2013-02-26 07:54:21 PM

d3: I had an invisibility cloak. But I forgot where I put it. Now I can't look for it.


Oh, you can still look for it.
 
2013-02-26 08:50:17 PM
What if an Invisibility cloak is in front of an invisibility cloak? Divide by zero disasterism? Time effects bringing back Jesus riding a dinosaur?
 
2013-02-26 09:56:54 PM

gweilo8888: Yeah, now let's see you do it with a real-world background containing detail, not a handful of soft-edged vertical lines.

/I have an invisibility cloak, too. I paint a wall, stand you in front of it, and paint you the same color.


cdn.idolator.com

Needs work.
 
2013-02-26 11:47:03 PM

Flt209er: mr_fulano: Serious question here: are you actually able to see through the object to the wall behind it? And if there was something that you didn't want invisible behind the calcite, would it be visible at a different distance behind it?

Nope. You're seeing part of the wall behind it, and then seeing a partial reflection of a different part of the wall where the paper "should" be. This is part of the reason the backgrounds used for this are either solid colors or vertical stripes. If you had any real world image behind the box (anything lacking any sort of vertical and horizontal symmetry) you'd be able to see the hidden region pretty clearly.

This makes for a fun parlor trick, but it's not a cloak by any definition of the word; just a cleverly cut crystal.


When looking at this thing I thought... why are those cuts at the bottom all parallel? Couldn't I just do the same with two lenses? I bet I could tell if those darned lines weren't vertical on the back wall. Now that I know it's part of the illusion, I need even more to find a video with a different background.
 
2013-02-28 09:56:58 AM

StoPPeRmobile: Profedius: Did anyone point out that if a person was the object being made invisible using this technology they would not be able to see out of the cloak? Not very useful, but a neat effect.


Could'nt you just drill a hole and mount a camera?

Oh and...
[3.bp.blogspot.com image 574x462]


The hole would then be seen by those you you mean to be hidden from. I guess if the hole was small enough you might be able to pass unnoticed.
 
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