Maybe you remember your first time, that first tentative step onto the mystically moving stairs inside the First National Bank building in downtown Grand Forks. Jim Hawley estimates the age of the ...

Add Yahoo as a preferred source to see more of our stories on Google. Tensions escalated at the United Nations on Tuesday after President Donald Trump and first lady Melania Trump came to an abrupt ...

When President Trump arrived at the United Nations this week to address the General Assembly, his entrance didn’t go as planned. A video widely shared on social media shows Trump and first lady ...

If you are designing a building and need to move many people up or down, you probably will at least consider an escalator. In fact, if you visit most large airports these days, they even use a similar ...