Experimenters Star and Syd visit Nina in her workshop and discover that piers are built with gaps underneath. Next, they visit Brighton Palace Pier to find out what helps it stay up in the sea and holds up all the weight above it. Finally, they do an experiment that explains why piers stay strong in the salty air and sea.

Originally released by BBC, 2015. Streaming video file encoded with permission for digital streaming by Infobase on January 17, 2017.

Meet the Neurons (0:54); --How Are Piers Built? (2:13); -- Senses Experiment (2:49); -- How a Pier Stays Up in the Sea (3:00); -- Why Does Metal Rust? (2:47); -- Summary: How Are Piers Built? (0:40); -- Credits: Piers—Nina & the Neurons: Get Building (1:49); .