When we hear Christmas, the first things that come in our mind are Santa Claus and the Christmas tree. Many people race to make the tree bigger and better every year and adorn them with precious ornaments. The world’s largest Christmas tree, about 750m in height adorned with over 700 lights, is lit up on the slopes of Monte Ingino, overlooking Italy’s medieval town of Gubbio.
So which is the smallest Christmas tree?
At exactly 4 nanometers tall, the tree created by Maura Willems, a student of Applied Physics at Delft University of Technology (TU Delft), is probably the world’s smallest Christmas tree.
Willems created the tree by removing 51 atoms from a perfect crystal lattice using a scanning tunneling microscope -a complex device capable of scanning individual atoms and even altering their position.
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