Monthly Archives: July 2011


Have a look at this, then think what it might have been used for. It’s a balance used in Roman times Which hook did the merchant use for hanging the object up in his shop for the customer to see? … Continue reading

Posted in Physics | 1 Comment

Khan Academy

Click on the image. This site is making hot news worldwide. What do you want to know? It’s all here as short video tutorials. Maths, Physics, Chemistry – almost anything to any level is either online or being rolled out. … Continue reading

Posted in AS and A2 Physics, Chemistry, Physics | Leave a comment

Redox Reactions

Redox (reduction-oxidation) reactions are a family of reactions that are concerned with the transfer of electrons between reactants. Redox reactions are a matched pair – you don’t have an oxidation reaction without a reduction reaction happening at the same time. … Continue reading

Posted in Chemistry | 2 Comments