You’ve heard of disappearing ink. Now get ready for suddenly appearing ink. Using a clear liquid, researchers can print a full rainbow of colors on transparent surfaces. The trick is printing the ...

I love butterflies and when I pulled up Pinterest I saw some of the most beautiful crochet butterfly patterns. I knew I had to share them with you. Some of the patterns are free while some designers ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. To stay hidden from predators, the long-tail glasswing butterfly ...

Butterflies are admired for their beauty and vibrant color patterns. Biologists are keen on measuring the reflectance of butterfly wings in the visible and ultraviolet (UV) ranges to better appreciate ...

Butterfly wings show a spectacular diversity of patterns of colours and shapes both within and among species. Butterfly wing patterns are ideal systems for an integrated study of the reciprocal ...