Science & Tech

Fish farming thumb

A project to develop low-tech fish farming systems in Papua New Guinea is providing a new source of cheap food and income for thousands of people.

Elizabeth Thurbon thumb

Australia must stop backing every renewable energy option and make a public choice to back the one with the best prospects, write Elizabeth Thurbon and John Mathews.

Tasman leakage

A state-of-the-art ocean model has been used to conduct the first detailed investigation of oceanic water flow between the Pacific and Indian Oceans.

Mosquito fish final

Warmer water temperatures can greatly increase the reproductive capacity of a pest fish species, a new study has found.

KeithRichards cropped

Professor Rob Brooks considers the profound effect of the "opium of the masses" - rock and roll - and questions whether the art form has seen its final days.

Aerialbirdsurvey

UNSW researchers have identified Australia’s most important wetlands for waterbirds, following one of the most extensive aerial surveys of its kind in the world.

Early human

Fossils from two caves in south-west China have revealed a previously unknown Stone Age people, giving a rare glimpse of a recent stage of human evolution with startling implications for Asia.

Tsunami goff

A year on from Japan's devastating earthquake, attention is on the recovery effort. But many scientists, and the Japanese themselves, are more concerned about when the next tsunami will happen and how big it will be, writes Professor James Goff.

Universe clocks

A proposed new clock tied to the orbiting of a neutron around an atomic nucleus could be so accurate that it neither gains nor loses 1/20th of a second in 14 billion years.

Ychromosome

We carry an odd pair of sex-chromosomes – a large X chromosome and its diminutive partner, the Y, explains Russell Bonduriansky.

Pages