Clever Subway Ad in Sweden Features a Woman Whose Hair Blows in the Wind When a Train Passes

To promote a new line of hair products, Swedish pharmacy chain Apotek Hjärtat installed a clever video ad in a Swedish subway station that features a female model whose hair blows in the wind when a train enters or exits the platform. They created the effect with ultrasonic sensors that detect when a train is near.

via Wykop.pl