How rainbows with NO COLOR are possible

What the heck are spiderweb rainbows What are these rare white rainbows, and how do they form If you liked this video check out these: Does this look WHITE to you The Projector Illusion: Special thanks to our Sally Ride level patrons: Alejandro Gutierrez, Brian O Connell, Darkbit, Dave Butler, David Cichowski, Edi, Fabrice Eap, Henning Bitsch, Kenneth Hunter, Margaux Lopez, and Zalster. Join the Physics Girl Pat