It's an inert gas

23rd May 2003 at 01:00
Most readers will be familiar with the Teacher Training Agency's "Those who can, teach" advertising campaign, which poses stark white-on-black questions about the challenge of teaching. One poster, aimed at physics graduates, asks: "Can you explain inertia to teenagers?" To which a graffiti artist and inertia expert on the London Tube has answered: "Can't be bothered."

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