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Old proverb: 'Essay is like a pearl necklace' ... Stay with me on this. When writing an essay it's good to visualise a necklace. The pearl beads are your paragraphs, they're where all your beautiful knowl...

If the expression to be differentiated is a (differentiable) function of another (differentiable) function, then the chain rule must be applied. For example y= f(g(x)), where f and g are both differentiab...

Hazard resistant design in developing countries mitigates the impact of earthquakes. Simpe changes reduce the cost of repair and minimise risk of injury. For example, houses are built with steel rod found...

Intro: Robin Goodfellow and the fairies, in the round, can be considered 'Charming, creative and chaotic'. This phrase, in itself, can be interpreted in many different ways as we do not only see these qua...

If a perturbation is applied to a system in dynamic equilbirium, the position of equilbirium will shift to favour the reaction which minimises the effect of the perturbation. If the forward reaction is ex...