相信你一定用过或至少见过这只圆珠笔。造型简单，笔帽是极具辨识度的蓝色，六角形的笔身灵感来源于铅笔，透明的笔杆能够让人随时看到墨管的墨量。它是公认的全球品质最好的圆珠笔之一——比克（BiC）圆珠笔，以书写流畅顺滑、持久耐用闻名全球。从创新设计到对物理学的巧妙运用，这样一支简单的笔是如何彻底改变书写世界的？
This is the BIC Cristal.
Possibly the most successful product ever made.
No matter where you are in the world you'll find this pen in homes, offices, schools and pretty much everywhere else.
This iconic design has reached every corner of the earth and at some point in and at some point in your life you've almost certainly used this pen.
Since it's release in 1950, more than 100 billion of these pens have been sold worldwide blowing the next bestselling products out of the water.
Amazingly, the design has remained basically unchanged for over 70 years and it still continues to dominate the world.
With 14 million being sold every day, the impact this pen had on the world was monumental.
Pen prices dropped and literacy rates shot up, but what made this pen so successful?
We modeled every last detail to show you the incredible story behind this pen and how its clever use of physics made it the most perfect design.
But to really understand how revolutionary this pen was, we need to go back in time.
