“We weren’t looking to create the world’s blackest material, “says the founder of Surrey Nanosystems, which introduces Vantablack in 2014. “That wasn’t our thing. We were trying to solve a calibration problem for space instruments using carbon nanotubes.” And five years later, an even darker black was developed, absorbing 99.995% of all light that strikes it. Vivian Le explains how these materials were developed, why they aren’t pigments, and the reason everyone got mad at sculptor Anish Kapoor. (podcast plus text; includes video) – 99% Invisible