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 follow a paper that describes achieving a daytime radiative cooling effect on cotton fabric through the growth of CaCO3 microspheres directly onto the fibers. The paper can be found here: https://doi.org/10.1016/j.compositesb.2022.109988 My previous video in this radiative cooling series: https://www.youtube.com/watch?v=KDRnEm-B3AI Thank you so much to those of you who support this channel on Patreon! Your support really helps give me confidence to spend my time researching projects that are of value for more than just video views. Shoutout to my top patrons: Eugene Pakhomov, Peter Gordon, Evan Hughes, Teague Lasser, Matthias S., Michel Pastor, PabloXIII, Parker Jones, Simone Chiesi, Steve C, Yanko Yankulov, Walter Montalvo, Carl Katzenberger, Damián Arrillaga, Dan L, Edward Unthank, Gusbear, Jon Hartmann, Kejie YU, Kirk Werklund, Lisa L, Mark Roth, PabloXIII, Santiago Perez, Steve C, Thibaud Peverelli, Tristan Tonks, WilSkarlet, Yanko Yankulov, and Matthew. https://www.patreon.com/NightHawkProjects Thanks everyone for watching!