It’s a cool glow-in-the-dark playground. No, it’s an art installation. Well, actually, husband-and-wife team Eric Höweler + Meejin Yoon of the Boston-based Höweler + Yoon Architecture were striving for both. The temporary installation titled Swing Time, located in a public park space next to the Boston Convention Center in South Boston, consists of 20 glowing oval swings that encase LED lights which activate with the swings’ movement. When forces are static and the swings are not in use, they emit a soft, white light that illuminates the area. When the swings are in motion, the micro-controller switches the light from white to purple, creating a more colorful glowing effect. Swing Time is part of an initiative to create the first interactive public space in the city, with the goal to entice people of all ages to play. If you’re in Boston, you might want to check it out.