But a new proof shows that for the quintessential path-finding problem, one algorithm is close to ideal: Assuming worst-case traffic patterns, it’s the best approach on every possible street grid.

The Irish philosopher George Berkely, best known for his theory of immaterialism, once famously mused, "If a tree falls in a forest and no one is around to hear it, does it make a sound?" What ...

Christmas trees don't make good firewood, but you can recycle them in lots of other sustainable ways. Using the parts of your tree for DIY projects and gardening is a great way to dispose of your ...