In this edition of TechCrunch's Perceptron column, we look at efforts to track Parkinson's progression, stop whale-boat collisions, and more.

This time also marked a return to the neural-network-style perceptron, but this version was far more complex, dynamic and, most importantly, digital.

Build your first neural network step by step! Learn how a perceptron works by coding it from the ground up—no libraries, just Python.