Patterns in crystals

The patterns I have chosen for boron and aluminium allow me to introduce you to one of my favourite books. From Atoms to Patterns by Lesley Jackson concerns the Festival Pattern Group, a project instigated by Cambridge crystallographer Dr Helen Megaw for the Festival of Britain in 1951. She brought together British crystallographers and industrialContinue reading “Patterns in crystals”

Properties of halogens

I have previously posted fluorine and chlorine, the two elements at the top of Group VII – the halogens – and astatine near the bottom. Today the two in between: bromine and iodine. These patterns result from their physical properties and give me the rare opportunity to incorporate some organic chemistry. Similarly to fluorine andContinue reading “Properties of halogens”

For better, for worse

One for the toxicologists and one for the immunologists today: polonium and astatine – the two elements I have struggled with most so far to find something I could work into a design. Both are radioactive – a property that can be harnessed for good or for harm. Astatine (from the Greek astatos meaning unstable)Continue reading “For better, for worse”