Energy too cheap to meter! So claims Italian inventer and entrepreneur Andrea Rossi for his invention of the E-Cat Energy Catalyser power generator, which he claims combines hydrogen and nickel with a secret catalyst to make heat and copper.

Ian Bryce is an aerospace engineer, and Chief Investigator for the Australian Skeptics. I spoke with him about his experiences with the Australian investment agent for Rossi's "cold fusion power generator".

This is the full version of the interview broadcast on Diffusion Science Radio

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Imagine designing molecules on paper and then making them in the lab. Dr Andrew McDonagh of the School of Chemistry and Forensic Sciences and the Institute of Nanoscale Technologies at the University of Technology, Sydney. He's been working on dye sensitised solar cells. I asked him what he's been synthesizing.

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As the Conference of the Parties of the United Nations Framework Convention on Climate Change, or COP17
finished this weekend, climate change is on everyone's mind.
Professor Ann Henderson-Sellers from Macquarie University wants you to show her what to do about it.
I asked her to explain about the Climate Fix Flicks.

More information on the competition to create a short video to show how we can all fix the climate

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Galit Segev is a chef and biochemist, combining her love of food and science, in public talks on the science of food. Galit is a volunteer for Vision Australia creating recipes and cooking classes for people with vision impairment. At the Ultimo Science Festival she spoke to me about her love of food, her love of chocolate, and the science of making chocolate.