Scales and bracts are modified leaves, and the spiral arrangements in pine cones and pineapples reflect the spiral growth habit of stems. To confirm this, bring in a leafless stem from some tree ...

Do it enough, with increasingly nested squares, and it makes a Golden Spiral. The spiral is used in art, but it’s seen even more often outside of a gallery. Fibonacci Spirals in Nature: ...

One set rises gradually, another moderately and the third steeply. Count the number of spirals and you'll find eight gradual, 13 moderate and 21 steeply rising ones. Fibonacci numbers, again.

Scales and bracts are modified leaves, and the spiral arrangements in pine cones and pineapples reflect the spiral growth habit of stems. To confirm this, bring in a leafless stem from some tree ...

Once you get rolling with the Fibonacci numbers, and get past eight, though, something magical happens. When you divide the smaller number into its larger neighbor, you get, more often than not 1.618.

Spirals have been showing up in art for centuries. Here's one man who built an entire career out of them. By Avery Thompson Published: Apr 26, 2017 5:06 PM EDT SciFri // YouTube ...

Fibonacci numbers again. Scales and bracts are modified leaves, and the spiral arrangements in pine cones and pineapples reflect the spiral growth habit of stems.

Better known by his pen name, Fibonacci, he came up with a number sequence that keeps popping up throughout the plant kingdom, and the art world too.