Alex and Brigit's wedding picture

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Interesting Mathematics

with two strips of paper

Take two strips of paper and create two Möbius strips. Make sure that the strips have different orientations. This is done by giving one strip a right (clockwise) twist and the other a left (counter-clockwise) twist.

right Möbius strip left Möbius strip

Glue the two pieces together so that at they form an angle of 90° at the join.

joined Möbius strips

Now cut along the middle of the strips. To help you, you might want to draw a line on the strips before starting the gluing process.

cut Möbius strips

Pull the pieces apart and let them take their natural form. Voila! An instant love letter.

Möbius hearts

As far as I know, nobody has discovered this cool result before me.

Another look at the pictures