Piano Keys: In an octave, there are a total of 13 keys (8 white and 5 black, arranged as 2 and 3).

Pine cones. Stock-market quotations. Sunflowers. Classical architecture. Reproduction of bees. Roman poetry. What do they have in common? In one way or another, these and many more creations of nature ...

What do pine cones and paintings have in common? A 13th-century Italian mathematician named Leonardo of Pisa. Better known by his pen name, Fibonacci, he came up with a number sequence that keeps ...

Leonardo of Pisa, known as Fibonacci, introduced Hindu-Arabic numerals to Europe in 1202. His famous number sequence began as a simple rabbit puzzle. Centuries later, this sequence gained fame for its ...

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. Plenty of us head into the woods to find inspiration. Aidan Dwyer ...