The floor has ears: the carpet that generates electricity and tracks your every move

 Smart floor … carpet tiles generate energy from footsteps.
Running in the corridor might not normally be encouraged in school. But at Simon Langton Grammar in Kent, teachers now have every reason to be persuading their pupils to pound down the halls.
"The more footsteps the better as far as we're concerned," says designer Laurence Kemball-Cook, who this week installed a series of floor tiles in the school corridors that generate power from the students' footfall. "The more they walk,

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