Ferns depict the seasons in such a visually prominent way. The way they uncurl in the spring has such an air of drama about it, and when they have stopped uncurling and have reached full height, we know summer is really here, and then from late summer we get the […]

You might not have started thinking about Christmas just yet but watching supermarket aisles getting fuller with chocolate selection boxes, mince pies, and cinnamon-scented candles, I can’t help but feel a sense of dread as we move nearer to December. You may call me Grinch if you want – after […]

Described in chaos theory, the butterfly effect is the sensitive dependence on initial conditions of non-linear systems, in which a small change can result in large differences at a later time and even in a different place. Explaining this, the mathematician and meteorologist Edward Norton Lorenz used the metaphorical example of a tornado being influenced by […]

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