Spiralis says its energy converter is inspired by seashells but built to be resilient and durable. A screw-like tidal energy converter design built by UK-based Spiralis Energy is now a step closer ...

Benjamin Britten’s The Turn of the Screw, based on Henry James’s ghost story, is – usually – a taut, tense and terrifying opera, concentrated into just seven singers and an orchestra of 13.

If you regularly repair old machinery or other things around your home, you’re bound to run into rusted screws. As long as you keep the right tools and supplies on hand, you can undo even the ...