More than half of the world's people are now urban dwellers, and this trend is set to accelerate. We can't build the cities of the future without science and engineering. So I'm here to help you uncover some of the tech hidden in every city on Earth. The daughter of an engineer, my love of cities first appeared when I arrived in London, just after my BSc in Physics with Astrophysics (Trinity College Dublin). While studying for my MSc in University College London, I realized I was a transport nerd. I spent 7 happy years at the National Physical Laboratory, where I became fascinated by the role of materials science in the real world. Since leaving research and moving to New Zealand, I've dived into writing. My first book, Science and the City: the Mechanics Behind the Metropolis, was published by Bloomsbury in late 2016. My second book, Sticky: The Secret Science of Surfaces was published in early 2022.