We thoroughly enjoyed this appreciation of one of the most successful products of all time in the BiC Cristal, introduced in 1950, the ballpoint pen ubiquitous and archetypal surpassing one hundred billion sold in 2006. 
In development since 1930 when inventor Lázló Bíró (the genericised namesake of the writing instrument “biro” in many European countries) when inspired for the mechanism, a rolling metal nib, by witnessing a group of children playing with marbles in a muddy puddle and observing how the objects left a trail of water in their wake, Bíró experimented with various models and eventually recreated a prototype with a narrow reservoir of viscous ink encased in the body and kept from drying out by the nib and cap. Incremental improvements continued over the every years until the launch of Cristal. The pen was enshrined in the permanent collection in the Museum of Modern Art (see previously), the design virtually unchanged for decades. Much more from Open Culture at the link above.
synchronoptica
one year ago: the EU votes (with synchronoptica) plus assorted links worth revisiting
seven years ago: recycled illustrations and early modern memes plus the Alexander method for improving poise and posture
eight years ago: hung parliament in the UK
nine years ago: an advertising homage to the cats of the internet, world food resources, removing Confederate symbols from Washington’s National Cathedral, Star Trek coins from the Canadian Mint, a sci-fi screenplay written by AI plus the gig economy and moonlighting
ten years ago: more links to enjoy
