What’s That Thing is Slate’s column examining mysterious or overlooked objects in our visual landscape. To submit suggestions and pics for future columns, send a description or a pic to ...

This month's winter weather is still causing safety hazards on North Texas roads, long after the weather warmed up. Snowplows brought in from the Panhandle to clear snow and ice off the roads also ...

It wasn't that long ago, especially in the Midwest, that rare was the highway that relied on raised pavement markers to improve safety. But as research showed the impact raised markers can have on ...

More than 1.3 million safety devices installed across the state -- the small reflectors which illuminate the road in the dark and when it rains -- are designed to keep motorists safe, but some of them ...

If there was an all-star team of global positioning system (GPS) devices, reflector tacks would be in the starting lineup. They're the fingernail-size thumbtacks covered with reflective sticky-dots.

3D scanners rely on being able to identify physical features of an object, and line up what it saw a moment ago with what it sees now in order to build a 3D model. However, not every object is as ...

Add Yahoo as a preferred source to see more of our stories on Google. In NSW and Queensland, drivers have likely noticed green reflective dots on sign posts installed on the side of busy highways.