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...physics, chemistry and biology experiments...This practical, hands-on course aims to help you start thinking like a scientist by carrying out experiments at home and making scientific observations. You will carry out simple experiments to extract the DNA from fruit or vegetables, observe osmosis in action and bake a potato to destruction! You’ll also investigate how...

...physical things, such as a resistance, voltage or pressure; we say they are temperature transducers. The temperature 'reading' is really a graduated indication of one of those other physical quantities. It is not very useful until the instrument has been calibrated against a defined numerical scale of temperature. Here are some effects by which temperature is sensed and...

...fact it cannot be combined with the standard model of particle physics are all thoroughly interesting topics. To have the time to describe them all, we would need to be accelerating near the speed of light … or in a strong gravitational field. This article was originally published on The Conversation on 11 October 2011. Read the original article there.[The Conversation]...