The Quest to Design the Perfect Toothbrush
February 28, 2025
Eduardo Jiménez, director of technology at Colgate-Palmolive, carries buckets of toothbrushes to meetings. He studies the angle of bristles and their corresponding scrubbiness. He pores over data from focus groups about the width of the handle and the all-important gripping point where a user’s thumb and fingers hold the brush. Sometimes he brushes at his desk.
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How the BIC Cristal Ballpoint Pen Became the Most Successful Product in History
June 11, 2025
joel's thoughts:
Not long after its introduction in 1950, the Cristal became ubiquitous around the world, so ideally did it suit human needs at a price that would have seemed impossibly cheap not so very long ago