Dinosaurs and birds – mixing up the classifications

One of the outcomes of the way the Age of Reason unfolded in the eighteenth century was an attempt to reduce the world to categories. Everything, it seemed, had its place: a slot into which it could be put. That’s often useful – take the periodic table of elements, for instance, which is a way … More Dinosaurs and birds – mixing up the classifications

New Horizons and Ultima Thule – the bonus mission

On 1 January 2019 the New Horizons probe – the one that whipped past Pluto in 2015 – will encounter another outer solar-system body: 2014 MU69. Informally it’s become known as Ultima Thule. The neat part is that this body wasn’t even known when New Horizons was launched in January 2006. Back then, the probe … More New Horizons and Ultima Thule – the bonus mission

Why the term ‘it’s psychological’ doesn’t cut it as a real medical diagnosis

A while back a downtown Auckland tower-block was evacuated after the occupants fell ill with what was first thought to be gas from the air conditioning. It wasn’t. But a dozen people were hospitalised. That evening, more people fell ill and the building was closed. Before a formal investigation reported on the problem, a university … More Why the term ‘it’s psychological’ doesn’t cut it as a real medical diagnosis