sand castles
How to Build the Perfect Sandcastle, According to a Physicist
Motherboard interviewed Daniel Bonn, a physicist from the University of Amsterdam, about how to build sandcastles that will make you the envy of the beach.
[Exclusive Video] Creating Sand Castles With A Single Grain Of Sand
Watch our documentary on artists Vik Muniz and Marcelo Coelho, who create etchings on grains of sand using a mind-blowing process.
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