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Small aircraft carry scientists high above the Southern Alps to survey glacier changes. Hamish McCormick/NIWA

A bird’s eye view of New Zealand’s changing glaciers

Forty years of continuous end-of-summer snowline monitoring of New Zealand’s glaciers brings the issue of human-induced climate change into tight focus.
Surrounded by Angels, by Carl Schweninger der Jungere, 1912. Wikimedia Commons

Friday essay: what might heaven be like?

Notions of heaven have changed through the ages, from an eternity centred on God to a more secular place where loved ones will reunite.
Whether it’s birds in a flock or drivers in traffic, agent-based modelling can describe complex phenomena by applying a simple set of rules to each individual’s behaviour. Barry Sweet/EPA

Traffic is complex, but modelling using deceptively simple rules can help unravel what’s going on

By identifying and applying the key rules governing the behaviour of each individual, agent-based modelling offers insights into complex phenomena like traffic jams and flocking.
With, for now, three Senate votes as her bargaining chips, Hanson’s impact – on government policy or on the major parties’ electoral strategy – is still being felt. AAP/Peter Mathew

Twenty years on, One Nation is still chaotic, controversial and influential

Despite its dysfunction and often inconsistent policy positions, the party has cemented an influential place in the federal arena, albeit a status that’s on the verge of diminishing drastically.
Tony Albert Girramay/Yidinji/Kuku Yalanji peoples. Australia Qld/NSW b.1981. Mid Century Modern (series) 2016 Pigment prints | 24 works: 100 x 100cm (each) Collection: The artist. Courtesy: Sullivan+Strumpf, Sydney

Tony Albert’s politically charged kitsch collection confronts our racist past

Tony Albert reassembles items of ‘Aboriginalia’, featuring kitsch caricatures of Indigenous people, with wit, playfulness and serious intent.
“Aitch” or “Haitch”? It’s long been a point of contestation among English speakers. Felicity Burke/The Conversastion with apologies to Dr. Suess

Haitch or aitch? How a humble letter was held hostage by historical haughtiness

An unspoken class war has long been waged around the pronounciation of the letter “h” - is it haitch or aitch? Despite a snobbish leaning to the latter, haitch makes more sense.