Ce trebuie să știi

"On his regular walk one morning, Spike Carlsen realized there was an entire world outside his front door that he knew nothing about. How does that fire hydrant work, he wondered? Why are street lights shining more brightly than ever before? And, on a more personal level, why does an easy stroll around the neighborhood always leave him feeling more creative and spry, better able to take on the day? A simple walk around the block set Carlsen off on an investigative journey to discover everything he could about every thing we take for granted in our everyday life, from manhole covers and recycling bins to pedestrian crossings and bike lanes. Leading readers on a spirited adventure through his hometown, and other environs, Carlsen explains with wit and erudition the engineering marvels, unheralded utilities, and secret economic and health benefits hiding in plain sight. Like how the addition of a front porch reduces crime and increases property value. And how planting a $10 boulevard tree cuts air-conditioning c...