You can still find metallic-looking garlands to display for holidays. However, the strands of tinsel once used to decorate trees were once made of silver and lead back in the 1960’s and 1970’s. Since then, companies started making tinsel out of plastic materials, usually mylar. However, ...
Where do we go from here? To infinity and beyond Arthur C Clarke's `2001: A Space Odyssey' predicted that mankind would be undone by machines. In this week's selection from the best of BBC radio, the distinguished futurologist reconsiders our prospects; Agenda World Service; Chris Gunness ...