Boat mills: water powered, floating factories

The waterwheel was seen as the most important power source in the world, from the Middle Ages to the end of the nineteenth century. When smaller streams became saturated, medieval engineers turned their attention to larger rivers, eventually leading to the development of the hydropower dams that still exists today. Lesser known are the intermediate steps toward that technology: boat mills, bridge mills and hanging mills.

Public transportation 3: Horse Power

Horses and carriages clop past my Dublin office every day, and while they are mostly for tourists, a few country folk still drive them around our land. They are almost unknown across much of the Western World these days; even here they are rare enough that children point and wave when a horse goes by. A hundred years ago they might have shrugged at the ubiquitous presence of horses and run shrieking towards an automobile, and it’s possible their great-grandchildren might do the same a century from now.

Mia Birk has a message for Seattle cyclists

Birk has just the right message to the bike community: Don’t get defensive, hold your ground and push ahead, because in the end even your opponents will come to appreciate the progress you make. … “We’re driving a cultural shift where you trade off motor vehicle space for bike lanes. This is deep, fundamental change. It’s not like just adding a bike lane and Boom, you’re done.”