Look at this type.

@helenzille Advances in rocketry, and the development of aspirin immediately spring to mind.

— Graham Downs 📚 🇿🇦 (@GrahamDowns) March 16, 2017

@helenzille Other medical discoveries too, directly resulting from human experimentation in the concentration camps.

— Graham Downs 📚 🇿🇦 (@GrahamDowns) March 16, 2017