28 million year old Libyan desert glass: ‘It has extremely unusual properties. It is strangely pure for a natural glass. It melts at 1700 degrees rather than 1100 degrees for normal glass. It can be dropped into cold water when red hot without shattering.’ Can...
Part of her was curled up tight and permanent as an ammonite. She sought the sea where she could unwind and expose her softer sides. But even her mathematical spiral was so pure and intriguing it reminded people of the Golden Ratio, and they couldn’t help but stare....