99% Invisible-04- 99% Details

<p>It’s a stick with bristles poking out of it. It doesn’t even qualify as a simple machine, but the careful thought and design that went into the creation of the modern, angled bristle, fat handled toothbrush shows just how much … <a href="http://99percentinvisible.prx.org/2010/09/24/99-invisible-04-99-details/" rel="nofollow" target="_blank">Continue reading →</a></p>