1 Sep, 2007

Global warming is causing panic among politicians and the bureaucracy

3 Sep, 2007

This project uses POV to produce a spectacular glowing display on a rotating pushbike wheel as you ride along. So what is POV? It stands for Persistence Of Vision. It's a term that's applied to devices that rely on the human eye's tendency to "see" an image for a short time after it has disappeared.

5 Sep, 2007

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7 Sep, 2007

Forget the hassel of running cables to your PA speakers. This new PA systemfrom Altronics is "wire less"

11 Sep, 2007

How many of us have had the opportunity to see working examples of equipment dating from the end of the 19th century? There was a lot of impressive equipment on display during the HRSA's recent 25th anniversary celebrations in Melbourne.

13 Sep, 2007

It's cheap and simple to build, operates completely unattended and will run for years on a set of AA batteries.

20 Sep, 2007

This is a truly versatile charger. It can charge up to 15 identical NiMH or Nicad cells. You can build it to suit any size cells or cell capacity and you can set the charge rate. It can fast charge, trickle charge and has safeguards, including temperature sensing, to prevent overcharging.

20 Sep, 2007

"If Australians switched to clean, renewable energy (Green Power) today, Australia's total greenhouse pollution would be cut by 30%." - World Wildlife Fund

29 Sep, 2007

Interesting circuit ideas which we have checked but not built and tested. Contributions from readers are welcome and will be paid for at standard rates.

29 Sep, 2007

Remote-controlled security blinds are not normally my scene but I'll give anything a go once. So was this a case of the blind leading the blind or was it simply blind man's bluff?

30 Sep, 2007

This article will show you how to use wireless networking (WiFi) gear to make a network link of 10km or more.

30 Sep, 2007

In this article, we show you how to build a high-performance 20W Class-A Stereo Amplifier using the modules described over the last few months. The unit will be available as a complete kit from Altronics and the assembly is straightforward.