Comments on: Shallow Rotating Gem Optical Illusion

By: Nikki

Nikki — Tue, 27 Dec 2011 08:40:16 +0000

Stare at the center where the triangles forming the top of the gem meet. It only spins in one direction when I do that.

By: Joe

Joe — Sun, 11 Dec 2011 04:19:47 +0000

I also think it’s therapeutic to watch it spin. I don’t know how Myth Busters can prove monitors don’t harm the eyes or which TVs actually do, based on WHAT lights up the screens, but I’d like to know and see prove… like the molecules deterring the eyes or something… I’d LOVE that… and to be smart enough to know it’s true or still false.

By: Joe

Joe — Sun, 11 Dec 2011 04:17:34 +0000

I don’t know about that e-mail or any others I forgot about. They all ended up having mail that ended up being spam I don’t need. I should make a new one, but anyways:

I don’t like the spinning woman one; it’s bullshit. I can only see it spin clockwise. Fuck that.

As far as this gem goes, you see it spin both ways because IT’S A GEM… like a gift (in no tie to it’s historical meaning of giving a hand or item as a gift for marriage). It’s a “gift” of presence of how nature works… simply… and not really manipulatively. The truth is that it didn’t matter which way it spun. Because it’s computer-generated, we won’t know if the “spinner of the object” is spinning it clockwise or counter-clockwise. Am I correct? It appears to be spinning one direction, but because no one is literally spinning it, we won’t EVER know which way is… lol

Now, if anyone can take A REAL gem and spin it in the direction it is spun for us, and use computer works to remove the person spinning it fluently with the fingers, let’s see if we can STILL tell! If I am wrong, okay, but if I am right, it would be interesting JUST TO SEE a real-life person spinning a gem and then putting it on video for Myth Busters or something. I wanted to see that show but I am never watching it.

By: adam

adam — Sun, 02 Oct 2011 05:01:48 +0000

you can see it changing direction because you can see the underside of the top surface of the object.

By: riotmonster

riotmonster — Wed, 27 Jul 2011 00:28:04 +0000

exactly as someone said above concentrate on the point if you follow the gray side you can actually follow its full circle.

By: LittleNYCgirl

LittleNYCgirl — Wed, 18 May 2011 16:37:50 +0000

Fun! This and the spinning girl are a couple of my favorites on this site. It’s amazing how difficult it is to force my brain to switch gears long enough to see the the image spin the other way.

By: Grace

Grace — Thu, 24 Mar 2011 19:22:02 +0000

You were wrong. I hate you. :] Just kidding! I really don’t see anything, though…

By: pop

pop — Sun, 27 Feb 2011 15:27:55 +0000

cool

By: Fiona

Fiona — Mon, 31 Jan 2011 10:53:29 +0000

To me it appears as if it is spinning one way and then when it reaches where it would be facing the back it turns around and rotates in the opposite direction when turning to the other side (L or R). But then I read one of the other comments saying it only spins one way and I looked back at it and it only changes for me sometimes now. D:

By: Fred

Fred — Tue, 28 Dec 2010 17:06:39 +0000

concentrate on the point under and you will figure it out.

By: happydoodle

happydoodle — Sun, 26 Dec 2010 02:34:53 +0000

woah, brain hurtful, im getting a headache! lol!

By: rubberdog44

rubberdog44 — Tue, 09 Nov 2010 14:47:02 +0000

This one can be easily solved by using computer print screen function. If you click print screen soon as top of gem starts to rotate counter-clockwise, then open the frozen image in paint(click edit, paste in paint) you will see that the lines of the gem body are not lined up with the lines of the top. If you look at a real transparent gem spinning the lines would never be out of alignment like this. In answer to your question as to whether or not this could be the greatest illusion on this site the answer is no. The spinning lady is the greater of the 2 illusions, because of the fact that she can spin in both directions. You can look at this spinning gem till your blue in the face and it will always be moving body of gem clock-wise, and top, back and forth. To be able to rotate clockwise and counter-clock wise at unlimited varying intervals is a level above what the spinning gem can do…

By: rubberdog44

rubberdog44 — Tue, 09 Nov 2010 13:37:54 +0000

This is exactly same as spinning lady who in reality isn’t really spinning. the figure is first drawn of lady standing still and then next drawing is made showing arm and leg slightly out to left and then another drawing slightly more out to the left and then maybe 30 more drawings going all the way to the left, and then 30 more drawings going all the way back to the lady standing still drawing, and then wait x amount of time (the time in which the arm and leg would be hidden from person viewing the spin in real time) then start the arm and leg drawings going from still position to the right same as on the left side. So what you are almost really seeing (but not quite) is movement from point of origin to left, back to point of origin, and then your looking at the point of origin for a while, and then your seeing movement out to the right and then back to point of origin. What your looking at is not really moving at all which explains why your brain is able to make it reverse the spin (that really isn’t happening) Your just looking at a bunch of still pictures, funny how it is so easy to fool a person

By: Rei

Rei — Tue, 05 Oct 2010 11:35:43 +0000

What….i’m getting so messed up in this illusion XD

By: D-z

D-z — Wed, 25 Aug 2010 00:45:56 +0000

Well, this effect is well known by 3D mappers :

The cone rotates clockwise around its top-point axis, and clockwise around a vertical axis. But the trick is that the top hexagon is always shown over the other faces, even when it should be hided : that creates the feeling it’s spinning the other side, because it gets mmirrored. It’s technically called “textures clipping”.

Hope it’s clear, have a good day ;)