The lines in the Saharan sand are much broader than we thought - and they are shifting. The BBC’s International Development Correspodnent Mark Doyle gives listeners an aural picture of this new ...

Here we report the discovery of a versatile binder, hyperbranched polyethyleneimine for BJAM, to produce extremely versatile structures and tools out of silica sand that provide exceptionally high ...

But often in the real world, those lines are blurred. Imagine walking on a beach. Sometimes the sand gives way under ... that ...