Disclosure: The organizers of Slush 2014 paid my way to Helsinki. Our coverage remains objective. HELSINKI — It’s easy to get lost in cavernous indoor spaces like shopping malls and Las Vegas casinos.

Biologists have identified, for the first time, that mature reed warblers are able to detect the declination from magnetic north, and use the scale of the declination or change from true north to ...

SINCE the year 1701, when Halley published his famous chart showing curves of equal magnetic variation for the Atlantic and Indian Oceans, the construction of similar charts, amended and enlarged as ...