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2013 Oscar Winners (L-R) Daniel Day-Lewis, Jennifer Lawrence, Anne Hathaway and Christoph Waltz EPA

Explainer: the Oscars

The first thing to understand about the Oscars is that, as a measure of the aesthetic value of films, they are completely unreliable. To understand why this is the case, we need to know what exactly “The…
It’s not an allergic reaction to the fish itself, so there is no need to avoid scombridae fish species such as mahi-mahi. Chewy Chua Flickr

Explainer: what is scombroid fish poisoning?

Preliminary autopsy results have revealed the tragic deaths of Queensland woman Noelene Bishcoff and her daughter Yvana in Bali last month were likely caused by scombroid fish poisoning. Though not common…
Around 20,000 chickens were culled in Hong Kong last week after the virus was detected in birds imported from mainland China. Alex Hofford/AAP Image

Explainer: what is H7N9 bird flu?

Australia’s federal Department of Health has advised general practitioners to be on the lookout for potential cases of the H7N9 strain of influenza A, or bird flu, following a spate of deaths in China…
Under the current tax regime, investors and cashed up owner occupiers are bidding up the cost of housing. Dean Lewins/AAP

Explainer: why negative gearing is bad policy

In an ideal (and economically efficient) world, tax policy would not influence the investment or consumption choices taxpayers make. In reality, this neutrality is rarely achieved. External factors influence…
Crystallography: from a handheld experiment in 1912 to the size of many football fields today. Diamond Light Source

Explainer: what is X-ray crystallography?

Around 100 years ago a father and his son in north England conducted an experiment that would revolutionise the way scientists study molecules. A refined version of their method still remains one of the…
There’s been plenty pumped: how much more is there? Arne Hückelheim

Explainer: whatever happened to the threat of peak oil?

Despite the arguments that once raged and the considerable volumes written to advocate certain viewpoints and disparage others, interest in peak oil is at an all time low. Indeed some commentators have…
George Liwukan Bukulaptji, 1990, Yolngu, Galiwin'ku, (Elcho Island), Octopus Dreaming, Garumara, acrylic with natural pigments on canvas, 76x152cm. © the artist's estate, licensed by Aboriginal Artists Agency Ltd; Burkhardt-Felder Collection, Switzerland

‘Dreamtime’ and ‘The Dreaming’: who dreamed up these terms?

** **We’re all, it seems, familiar with the terms “Dreamtime” and “The Dreaming” in relation to Aboriginal Australian culture, but – as I noted in the first part of this series – such terms are grossly…
So many people, so much data. Flickr/Fran Simó

Explainer: what is big data?

Big Data, as the name implies, relates to very large sets of data collected through free or commercial services on the internet. This massive amount of data arises from sensors, posts to social networking…
It all comes down to egg supply. Image from shutterstock.com

Explainer: what causes women’s fertility to decline with age?

We’ve known for over 50 years that reproductive ageing results in a gradual loss of fertility until about age 37, when the rate of decline accelerates dramatically. The loss of fertility is accompanied…
Rosie Tasman Napurrurla, Warlpiri 2002, Ngurlu Jukurrpa (‘Grass Seed; Bush Grain Dreaming’), line etching on Hahnemuhle paper. Warnayaka Art Centre, Lajamanu, and Aboriginal Art Prints Network, Sydney

‘Dreamtime’ and ‘The Dreaming’ – an introduction

In 2002, Jeannie Herbert Nungarrayi, formerly a Warlpiri teacher at the Lajamanu School in the Tanami Desert of the Northern Territory, where I worked for many years first as a linguist and then as school…
The navy is permitted to intercept vessels in Australian waters, but the high seas or Indonesian waters are a different matter, as are tow-backs to another country. AAP/Scott Fisher

Explainer: the legal implications of ‘tow-backs

Australia has been engaging in “tow-backs” of asylum-seeker boats. This has involved intercepting boats carrying asylum seekers at sea, before they reach Australia, and forcing them to return to Indonesia…
How keen are Australians to see locally made films such as The Sapphires? AAP Image/April Fonti

Explainer: where’s the audience for Australian films?

Around 25 new Australian feature films are released into the market each year – so who’s watching them, when and how are they watching, and what makes them choose home-grown films over imported blockbusters…
Campaigns tell us to eat red meat to keep our iron levels up – but what if we have too much? tarale

Explainer: can the body have too much iron?

Many people are aware that low levels of iron in their body can lead anaemia, with symptoms such as fatigue. But few realise that too much iron can result in a potentially fatal condition. Normally, if…
‘Success Kid’ – with its various slogans – has been an enduring meme of recent years. Know Your Meme

Explainer: what are memes?

Nothing defines our use of the internet as clearly as the concept of the meme (pronounced “meem”). Every day, millions of people laugh at LOLcats, dog shaming, and music videos without music, while others…
The immune system is often the reason we feel unwell when we have an infection. Flickr/uneduex

Explainer: what is the immune system?

The immune system is an integral part of our body, keeping us safe from diseases – from the common cold to more severe illnesses such as cancer. The immune system is often the reason we feel unwell when…
It seems that South Sudan is falling apart amidst political conflict, but what is actually behind the violence? EPA/Phillip Dill

Explainer: what is going on in South Sudan?

Over the past few weeks, crisis has gripped the world’s newest nation, South Sudan, after an internal political conflict spilled into violence which has left thousands dead. So far, there have been reports…
The kitsch consumerist art of Jeff Koons at Versailles: Michael Jackson and Bubbles, 1988, ceramic sculpture. dalbera

Explainer: what is postmodernism?

I once asked a group of my students if they knew what the term postmodernism meant: one replied that it’s when you put everything in quotation marks. It wasn’t such a bad answer, because concepts such…
Cosplayers come in all shapes and sizes. zigazou

Explainer: what is cosplay?

I’m standing in a line at Brisbane Supanova 2013, a pop culture convention, when I’m approached by a young family with a tiny girl in a sparkly Snow White gown, complete with bright red hair bow. “We were…
What does the colour of carrots have to do with the history of The Netherlands? niznoz

Explainer: why are carrots orange?

Why are carrots orange? They were bred orange in The Netherlands during the 17th century from the older white and purple stock (that are now back in fashion as “heritage” varieties) to show support for…

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