Mirage maker

30 Oct 2015

Aditya Sadhanala wanders over to the wall, turns a pulley, and a wooden box about a metre squared swings up and away. Below it gleams an array of carefully positioned lasers, deflectors and sensors surrounding a piece of glass no bigger than a contact lens. He flips a switch and creates a ‘mirage’.

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Nanomaterials Up Close: Synthetic opal

13 Jun 2014

In this video we see a synthetic opal, which is made using polystyrene spheres surrounded by even tinier polystyrene spheres around 1,000 times smaller than the width of a human hair. Harry Beeson explains how it’s important to look at nanoscale structures like this to improve the efficiency of solar cells.

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Smart glass

21 Feb 2014

A newly-developed coating could enable buildings to have antireflective self-cleaning windows and could increase the efficiency of solar cells.

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