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False-colour SEM of stylus in groove of LP record
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False-colour SEM of stylus in groove of LP record
False-colour scanning electron micrograph of a diamond stylus travelling through the grooves of a long-playing, stereo record. The grooves are cut into a flat disc of polyvinyl chloride. The groove varies with the intensity of the music: the straighter the groove the quieter the music, the wavier the groove (as here) the louder the music. The stylus picks up the music modulation from the sloping sides & transmits it to the cartridge, where a piezoelectric crystal or an electromagnet converts the vibration into an electrical signal. Although thoroughly cleaned, this needle is encrusted with dirt. Magnification: x30 at 35mm size, x50 at 6x4.5cm size. Purple & yellow stylus on red record. Reference: MICROCOSMOS, figure 9.16, page 182
Science Photo Library features Science and Medical images including photos and illustrations
Media ID 6400885
© DR JEREMY BURGESS/SCIENCE PHOTO LIBRARY
Common Item Familiar Object Items Objects Record Stylus False Coloured
EDITORS COMMENTS
This print showcases the intricate world hidden within a seemingly ordinary object - an LP record. In this false-colour scanning electron micrograph, we are granted a mesmerizing glimpse into the stylus as it gracefully glides through the grooves of a polyvinyl chloride disc. The groove's shape and pattern serve as a visual representation of the music's intensity; straighter grooves signify quieter melodies, while wavier ones, like those depicted here, indicate louder tunes. The diamond stylus acts as both explorer and messenger in this musical journey. It delicately traces the sloping sides of the groove, capturing every modulation and transmitting them to the cartridge. Here, either a piezoelectric crystal or an electromagnet converts these vibrations into electrical signals that will eventually bring our beloved songs to life. Although meticulously cleaned beforehand, this needle bears witness to its countless encounters with dirt along its melodic path. Its encrusted surface serves as a testament to its dedication in faithfully reproducing each note and rhythm etched onto the record. Through magnification at 30 times for 35mm size or 50 times for 6x4.5cm size prints, we can truly appreciate every detail of this purple and yellow stylus on a vibrant red record. This image is not just about technology but also reminds us of familiar objects that hold immense significance in our lives - reminding us that beauty can be found even in everyday items like records made from polyvinyl chloride (PVC).
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