These days, most of us have a smartphone. They are so commonplace that we rarely stop to consider how amazing they truly are.

Arduino, the man behind modern stratigraphy It was through a letter dated March 30, 1579 that Giovanni Arduino announced the four orders that form the basis of stratigraphic chronology.

The holidays always remind us of our favorite toys from when we were kids. Johnny Astro, an Erector set, and — of course — a Spirograph. [CraftDiaries] has an Arduino machine that isn&#… ...