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Approximately 41 000 years ago, Earth’s magnetic field briefly reversed during what is known as the Laschamp event. During this time, Earth’s magnetic field weakened significantly—dropping to a minimum of 5% of its current strength—which allowed more cosmic rays to reach Earth’s atmosphere.

Scientists at the Technical University of Denmark and the German Research Centre for Geosciences used data from ESA’s Swarm mission, along with other sources, to create a sounded visualisation of the Laschamp event. They mapped the movement of Earth’s magnetic field lines during the event and created a stereo sound version which is what you can hear in the video.

The soundscape was made using recordings of natural noises like wood creaking and rocks falling, blending them into familiar and strange, almost alien-like, sounds. The process of transforming the sounds with data is similar to composing music from a score.

She’s not long on charisma or passion but keeps perfect rhythm and is never prone to temperamental outbursts against the musicians beneath her three batons. Meet MAiRA Pro S, the next-generation robot conductor who made her debut this weekend in Dresden.

Her two performances in the eastern German city are intended to show off the latest advances in machine maestros, as well as music written explicitly to harness 21st-century technology. The artistic director of Dresden’s Sinfoniker, Markus Rindt, said the intention was “not to replace human beings” but to perform complex music that human conductors would find impossible.

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Roli, the maker of quirky, portable, and expressive digital pianos and keyboard instruments, has a new device that can both teach budding pianists how to play music and provide seasoned musicians with a new way of adding filters and effects to their songs by waving their hands and wiggling their fingers.

The Roli Airwave is a 14.5-inch tall stand with a camera on top. The camera is positioned downward to track the movements of a player’s fingers as they dance across a keyboard sitting at the base of the stand. The movements of a player’s hands that are captured by the camera are streamed in real time onto the screen of a tablet that sits on the easel-like Airwave stand. The visuals can be used as a teaching tool to show the player which fingers should strike which keys, or offer some additional guidance on how to play a song just right. Of course, the Airwave uses machine intelligence and computer vision to track the player’s hands and to offer its advice on where those hands should be placed.

The system costs $299 and should start shipping in February 2025. You’ll also need one of Roli’s keyboards (which range from $249 to $1,399) to pair with it. If you want to use it as a teaching tool, you’ll also need an iPad or other tablet to set onto the stand to supply the visuals.