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Odin
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31 Mar 2008, 8:05 am

that was easy. :)

1. a
2. a
3. a


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digger1
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31 Mar 2008, 8:55 am

1.) I determined the correct shape of the hole left by the cube…

a.) immediately when I visualized the cube passing through the paper.
b.) after several minutes of thinking and reasoning through the problem without any visual aids.
c.) only after using visual aids (e.g. drawing a picture or looking at a die)
d.) only after viewing the solution video.

2.) I am…

a.) male
b.) female

3.) I am…

a.) diagnosed aspergers
b.) diagnosed HFA
c.) diagnosed other autism spectrum disorder
d.) not diagnosed but suspect that I am on the autism spectrum
e.) not on the autism spectrum

so, a, a, a.



Anniemaniac
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31 Mar 2008, 9:11 am

I couldn't do it as I found it very difficult to visualise a cube passing "perfectly" though a piece of paper. All my mind could picture was a cube being forced though a piece of paper, and leaving a very untidy ripped hole that had no specific shape. My immediate guess was a circle, as I imagined a cube being pushed though a piece of paper with great force, and causing a circular-ish type hole (similar to if you shove a pencil though paper). It wasn't until I looked at the answer that I realised how I was supposed to visualise it. It was the "paper" part that threw me off. To me, a cube can't pass "perfectly" though a piece of paper, without ripping it, so I didn't understand how to visualise that :?.

I asked my mum to do this experiment, and she thought the exact same thing I did.

Anyone else do this, too?



Satellite
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31 Mar 2008, 12:07 pm

1. b) (Though that isn't quite accurate, as it took only a minute or two, not "several minutes". Still, it wasn't instant, so it can't be a). Maybe if I had visualized it properly in the first place...)

2. b)

3. d)



Scorpio82
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31 Mar 2008, 12:29 pm

1. a
2. a
3. d

This wasn't hard for me because I work with 3D graphics 24/7.



Greentea
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31 Mar 2008, 12:31 pm

I'm useless at spatial geometry. This kind of exercises make me feel bad.


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Zamone
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31 Mar 2008, 7:49 pm

number 1 was hard to answer, as I was sort of in the middle. I went: "Octa- no, wait... How many sides? 6 sides. Hexagon.
I didn't take a couple of minutes, only about 20 seconds, but didn't immediately get it. Still:
1a/b, 2b, 3d.



ZakFiend
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31 Mar 2008, 9:39 pm

Ironically enough I got it wrong not because I couldn't solve it but because I confused the the 2D view of the cube on it's point with two pyramid shapes stuck together. my mind took into account an the symmetry from the viewing from the side, I had a shape looking like a square diamont as if it was this shape on it's point when viewed from the side a cube on its point looks like a diamond shape, but each corner only has 3 vertices.

I calculated a shape like so:
/\
\/

But instead when you move your perspective around: All that needs to be asked is: look at the cube as if one of it's pointy corners was balanced on your nose and you're looking up at it, what shape do yousee?

- triangle pyramid.

If you cut the cube in half once it's balanced on it's edge it's much easier to figure out Perspective is everything.



cas
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31 Mar 2008, 9:55 pm

1e (sorry but I didn't understand the video and was not right at all if that is right), 2b, 3c.

I didn't understand what the instructions were saying to do even after looking at the video, only after reading comments. The video cube left no hole so I was not sure how to check my work really. But if you're trying to see who can visualize properly, I can't! :) I can't really see much without my eyes, and definitely not detail or 3-D.

Anniemaniac wrote:
I couldn't do it as I found it very difficult to visualise a cube passing "perfectly" though a piece of paper. All my mind could picture was a cube being forced though a piece of paper, and leaving a very untidy ripped hole that had no specific shape. My immediate guess was a circle, as I imagined a cube being pushed though a piece of paper with great force, and causing a circular-ish type hole (similar to if you shove a pencil though paper). It wasn't until I looked at the answer that I realised how I was supposed to visualise it. It was the "paper" part that threw me off. To me, a cube can't pass "perfectly" though a piece of paper, without ripping it, so I didn't understand how to visualise that :?.


I thought that too.



nobodyzdream
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31 Mar 2008, 10:07 pm

Anniemaniac wrote:
I couldn't do it as I found it very difficult to visualise a cube passing "perfectly" though a piece of paper. All my mind could picture was a cube being forced though a piece of paper, and leaving a very untidy ripped hole that had no specific shape.


ROFL! That's the same thing I did. I was imagining the cube as a solid object being shoved through paper, so my hole had rips and all XD


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Grey_Kameleon
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31 Mar 2008, 11:19 pm

nobodyzdream wrote:
Anniemaniac wrote:
I couldn't do it as I found it very difficult to visualise a cube passing "perfectly" though a piece of paper. All my mind could picture was a cube being forced though a piece of paper, and leaving a very untidy ripped hole that had no specific shape.


ROFL! That's the same thing I did. I was imagining the cube as a solid object being shoved through paper, so my hole had rips and all XD


Exactly. I imagined sort of an ugly square-shaped hole, maybe with some line-shaped tears coming out from the sides.



marshall
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01 Apr 2008, 3:16 am

Zamone wrote:
number 1 was hard to answer, as I was sort of in the middle. I went: "Octa- no, wait... How many sides? 6 sides. Hexagon.
I didn't take a couple of minutes, only about 20 seconds, but didn't immediately get it. Still:
1a/b, 2b, 3d.


If it took less than a minute you can put "a".



marshall
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01 Apr 2008, 3:20 am

nobodyzdream wrote:
Anniemaniac wrote:
I couldn't do it as I found it very difficult to visualise a cube passing "perfectly" though a piece of paper. All my mind could picture was a cube being forced though a piece of paper, and leaving a very untidy ripped hole that had no specific shape.


ROFL! That's the same thing I did. I was imagining the cube as a solid object being shoved through paper, so my hole had rips and all XD


Maybe I should have described it as something soft like snow or butter rather than paper. Only problem is then you can't see it coming out the bottom of the hole like you would for a thin piece of paper.



marshall
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01 Apr 2008, 3:29 am

Alright. I added some additional clarification to the test to try and make it less confusing.



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01 Apr 2008, 9:22 am

I need 3D glasses topic

1 c
2 b
3 a

I visualized a hexagon shape. Then when I saw the video, I noticed what had happened. Good one. :D


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01 Apr 2008, 10:26 am

I feel so bad about my answer for the first question (d) now :(