DTU Physics Researchers Creates Smallest Ever Christmas Record

December 26, 2022 By Jozeph P

(Image Credit Google)

DTU Physics researchers have created the smallest record ever cut, measuring only 40 micrometers in diameter. The first 25 seconds of the Christmas classic "Rocking Around the Christmas Tree" are included. It was made with the NanoFrazor, a commercial device that removes minuscule amounts of material from a solid piece at precise locations, eventually leaving the desired shape behind. The NanoFrazor not only designed the flat record disc and the graphics in the center, but it also carved an actual record-like spiral groove into its surface, which incorporates the music signal... in stereo, no less. The left audio channel is represented by the groove's lateral (side-to-side) "wriggles," while the right channel is represented by variations in the depth of the groove. Needless to say, the record could not be played on a standard turntable. "To read the groove, you need a rather expensive atomic force microscope or the NanoFrazor, but it is definitely doable," said Prof. Peter Bggild, the lead scientist. DTU Physics

While such tiny records have limited practical applications, the exercise demonstrates how capable the NanoFrazor is of producing highly detailed nanostructures quickly and cheaply - and those nanostructures could have a wide range of useful applications. "The fact that we can now accurately shape the surfaces with nanoscale precision at nearly the speed of imagination is a game changer for us," Assoc. Prof. Tim Booth said. "We have many ideas for what to do next and believe that this machine will significantly speed up the prototyping of new structures. Our primary goal is to create novel magnetic sensors capable of detecting currents in the living brain [...] We also hope to create precisely sculpted potential landscapes that will allow us to better control electrons waves.

By Jozeph P

Journalism explorer, tech Enthusiast. Love to read and write.

DTU Physics Researchers Creates Smallest Ever Christmas Record

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