Pingbell Brings the Traditional Bike Bell To Present Day

More than a signal for alerting pedestrians, it's a device that tracks position

In bike-friendly cities, more often than not, one’s ride is stored in a sea of other bikes, or in the closest place available—which might not be the easiest to remember. One year ago, Amsterdam-based studio FROLIC proposed a simple solution: a discreet app-connected smart bicycle bell. After interest from buyers, manufacturers and even distributors, and six months of product development, they’ve just launched the result, …

Simple, Advanced Happy Ears Earplugs

Blocking out harmful noise without sacrificing sound quality

Stand at a concert in Sweden and you’ll notice that the vast majority of the crowd will pause moments before the band comes onstage to reach into their pockets and retrieve earplugs. Likewise, on the streets, fingers go in ears the moment an emergency vehicle passes. Suffice it to say: Swedes take protecting their hearing very seriously. Swedish brand Happy Ears is a patented earplug …

Scientists Find a Double Black Hole

After carefully studying data from the Hubble Space Telescope, scientists are convinced that the closest quasar to Earth (about 600 million light-years away) contains a double black hole at its core. The larger of the pair is roughly 150 million times the size of our sun, while the smaller black hole is four million times larger. Eventually, the two black holes will swirl into each …