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A Traditional Paper Airplane being folded
[
edit] Instructions
The person who is folding the piece of paper in these instructions is referred to as "the folder".
1.
The folder should leave a guide crease. This can be accomplished by laying the paper in portrait position and folding the left part of the paper over to the right so that it overlaps the other side completely. Crease the fold by running your thumb over the fold. This will make your fold permanent.
2.
The folder then should uncrease the sides again and fold the top left corner of the page so that it touches the crease in the middle, and vice versa for the right side.
3.
The folder should crease the paper plane back to the position where the folder had left the guide marks, then they should put wings on the paper plane, the most vital part of this procedure.
4.
Still in portrait position the person should fold the non-pointed bit of the paper plane (the bottom part) so it creases over the guide part but inverted outwards so that the wings are not internally in the paper plane but externally.
We can see one diagram (1) and one picture (2) above.
If you follow the instructions, which plane do you think comes out?
(I'm worrying about the pictures don't show up. Last time I failed to post pictures.)
Thanks.