Volcanic popcorn is key to insulating wallpaper

A humble soil additive used by millions of amateur and professional gardeners alike is set to slash the cost of the most effective form of insulation for buildings.

The brave new world of big data retention

With the Senate passing the Federal Government's data retention bill last week, there has been a great deal of discussion of "metadata", what it is and whether the government ought to have access to it.

Individual privacy versus digital driftnets

The great irony of the Abbott government's plan enforce the mandatory data retention legislation is that while this is being done to make us safer, in fact it creates new data security risks for us all.

Improved soil condition increases moisture for crops

Tillage practices that conserve moisture, plants that use water more efficiently and soil with more organic matter have produced higher yields even in dry conditions, according to soil scientist David Clay, professor of plant ...

Scientists target mess from Christmas tree needles

The presents are unwrapped. The children's shrieks of delight are just a memory. Now it's time for another Yuletide tradition: cleaning up the needles that are falling off your Christmas tree.

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