Those traffic loop sensors embedded at stop lights to detect the presence of a car have always provided fodder for vehicular snake oil vendors: I’ve seen products promising to eliminate red lights ...

In a bout of frustration I recently realized that the roads have all updated — most people have no idea how — and this sometimes hurts the flow of traffic. This realization happened when an ...

Editors' note, May 7, 2015: The co-founder of Notion, Brett Jurgens, responded to some of the setup questions I had. I've updated the piece accordingly. Between detecting leaks, watching the front ...