Dr. Mark Lindsay was 5 years old when he first learned that tree trunks were brown. "Up until that point, I believed leaves and trunks were all green. Just lighter and darker shades," Mark said. Mark ...

This experiment demonstrates how plants transport water and nutrients through their stems. You'll witness the fascinating process of capillary action as white flowers transform into colorful blooms, ...

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. The rainbow may be due for an update. A new, high-tech method for ...

"Is color real or illusory, mind independent or mind dependent? Does seeing in color give us a true picture of external reality? The metaphysical debate over color has gone on at least since the ...