High-Tech Shampoo Ad Makes Waves in Swedish Subway Station

A high-tech subway billboard ad is gaining lots of attention in Sweden. A digital display fitted with motion sensors detects the movement of trains about the station. The ads, for a shampoo product, show a woman with immaculate hair. As trains arrive and depart the woman’s hair begins to blow around as though it is windswept by the vehicle. Credit: Sara Clewemar