"How does one experience synesthesia -- the neurological trait that combines two or more senses? Synesthetes may taste the number 9 or attach a color to each day of the week. Richard E. Cytowic explains the fascinating world of entangled senses and why we may all have just a touch of synesthesia." View the complete lesson at TED Ed.
"Have you ever wondered what the most popular colors are in each category of the iOS store? We did. So we crawled the iOS app store and grabbed the top 5 app icons in each category and ran a histogram analysis on each one to find which colors were used most often."