Now, researchers have found the first evidence of changes taking place over the past 20 years in the shape of the inner core. Signs of the core’s deformation appeared in waves from earthquakes ...

Two-dimensional (2D) shapes are completely flat. They have two dimensions – length and width. A polygon is a closed 2D shape with straight sides that meet at vertices. Polygons can be regular or ...

Candles, bright cushions and a lick of paint have raised it slightly above student digs status, but outside the overgrown garden and unmown lawn tell a different story. Not that Paula will ...