Do you recall the big internet debate about The Dress? The heated argument about whether The Dress was white gold or black blue made some of our science educators wonder about visual perception: Is V Neck Navy Blue Lace Long Prom Dresses, Backless Navy Blue Formal Dre Eip Collection A line Sweetheart Strapless Long Floor Length Tulle Prom Dress With Appliqued Sequins Glitter Prom Dresses Stacees Sleeveless Navy Blue Satin Lace High low Prom Gown Xdressy A scientific tale of two dresses CNN