Check out my sponsor Brilliant, free for 30 days (and get 20% off a premium subscription!) by using this link: https://brilliant.org/nighthawk In this video we explore the creation of synthetic opal in the workshop with the end goal of improving our homemade radiative sky cooling coatings. The Thought Emporium's video about making opal: https://www.youtube.com/watch?v=d7MvGFX_VKo The paper referenced throughout this video (this link will download a pdf): https://link.springer.com/content/pdf/10.1007/s11051-016-3691-8.pdf Thank you so much to those of you who support this channel on Patreon! Your support helps give me confidence to spend my time researching projects that are of value for more than just video views. A special thank you to my top patrons: Aik193, Chris, Damián Arrillaga, Daniel Moore, Dustin B , Eugene Pakhomov, Evan Hughes, Evan Relf, Gusbear, Jedediah Kivi, Jonathan Wilt, Iain Rei, Josh Hoppes, Mark Roth, Matthew, Matthias S., Michel Pastor, Nick Gerner, PabloXIII, Parker Jones, Peter Gordon, PeteyPak, Sam Hodge, Santiago Perez, Simone Chiesi, Syniurge, Teague Lasser, WilSkarlet, Yanko Yankulov, Alvaro Figueroa https://www.patreon.com/NightHawkProjects Thank you for watching!