A record and a paper opening have never been so impressive

If you like challenges, it's on the right page. Imagine a paper with a square cutout in the middle, take a disc larger than this square and try to pass it to the other side. Do you find it impossible? Maybe not, it just depends on the dimensions of the elements and how it will be done.

According to Stanford University mathematician Tadashi Tokieda, if you fold the sheet correctly and respect the size limit of the elements, it is entirely possible. Watch the video below the Numberphile channel to get an idea of ​​how this works:

Tokieda explains in the video that this has to do with the inherent dimensions of the paper sheet, which has two dimensions, and the fact that the square changes its properties as it becomes a three-dimensional space. Do not think that only you found the explanation confusing, but let's try to translate.

If you measure the diameter of the disk and compare it with the diagonal of the opening made on the piece of paper, which is the largest free distance within the square, you will find that there is not enough space for the passage. This is due to limitations of objects in two dimensions.

Now, when the paper is folded as shown in the video, the opening for the disc passageway is equal to two times one side of the square due to the transformation of the sheet into a three dimensional object.

Using the dimensions indicated, it is possible to challenge other people and see the look of surprise after the passing of the disc. Here's the tip.