• Light holds many records. Nothing is faster than light: it travels at 300,000 kilometres per second! The light from the moon reaches us in about one second
• Light can be focussed down to a few millionths of a millimetre- light enables nanometre precision
• The shortest pulse can be achieved with light, as short as a femtosecond -  that's a millionth of a billionth of a second.
• Light can easily be superposed. This means that terabits, or millions of megabits, can be transmitted per second -  through a single tiny glass fibre.
• Mankind makes use of these properties - light changes our lives.

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