Can anyone explain this? Look closely...
Look at the circled areas... The diagonal line has been bent, bent upwards on the top one and bent downwards on the bottom one. Its very slight, thats why at first glance you don't notice it.
wow, i saw this years ago, and never able to explain it....
i finally understand...
Actually, the top and bottom pieces are exactly the same. The explaination is that there is a difference in slope between the large triangle and small triangle. When re-arranged, the difference in slope is slight, but yields enough for a whole empty unit. The graph adds to the illusion. Good job!
To think that I printed it out and cut it up with scissors...:blush:
I did that too...hehe
You probably put more effort into it than anyone else............Wasted effort maybe, but still effort:grinthumb
You ought some people just like to do this kind of challenging stuffs.
Somethings not right, I printed it out cut it out really carefully and it fits. I took lots of care
Its a mad world
Hey, never mind that, there is a way of folding a strip of paper in such a way that it has only one surface....
Flip one side over and attach the ends. You can also make a solid with one side the same way.