Older than Stonehenge, the Callanish Standing Stones on Scotland’s Isle of Lewis were built to track the moon’s 18.6-year cycle. Their placement and precision reveal the astronomical knowledge of ...

Some of the Callanish stones, which sit atop the Isle of Lewis in Scotland Chris Combe via Flickr under CC BY SA-2.0 When a searing flash of lightning crackles through the sky, some spectators marvel ...

THE object of the present paper is to describe the standing stones of Callanish, Island of Lewis, accompanied by notes of such measurements as the author was able to take during a somewhat hurried ...