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Ars Technica

Ars Technica

These 3D-printed pipes inspired by shark intestines outperform Tesla valves

Ars Technica
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Nikola Tesla invented a "valvular conduit" in 1920 that allows fluid to flow in one direction with no need for moving parts.

Nikola Tesla's design is a set of interconnected, asymmetric, tear-shaped loops.

Scientists at the University of Washington have re-created the distinctive spiral shapes of shark intestines in 3D-printed pipes to study fluid flow inside the spirals.

Researchers have created 3D-printed shark intestines that are soft, strong and printable.

Because the pipes are three -dimensional, they can accommodate larger fluid volumes, opening up applications in larger commercial devices.

The biggest challenge, per the authors, is finding soft materials that can withstand deformations.