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Stuff Explained

Are you a low-vision driver?

Bioptic driving – are you, or do you know someone who is losing their eyesight or born with low vision, and wants to continue to drive? In this interview Robert Pepper talks to me, Belinda O’Connor, founder and director of Bioptic Drivers Australia. At the time I had only been driving for three years and […]

Why are diesels turbocharged?

The short answer is “because they need it”.  Here’s the long answer, and why. Your internal combustion engine, be it diesel or petrol, draws air in through valves as the piston moves down inside its cylinder.  Then the valves are closed, and the piston moves back up.  A petrol engine creates a compressed mixture of […]