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    Sur
    Sur@sur_272mo
    💭Science💭Tech
    Radio Hat 1949 Man-from-Mars

    @sur_27In 1949, you could buy a radio built into a pith helmet for $7.95. Called the “Man-from-Mars Radio Hat,” it had two vacuum tubes, a loop antenna, and a battery pack, picking up stations within a 20-mile (32 km) radius. A fascinating piece of early wearable tech.

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    Radio Hat 1949 Man-from-Mars

    @sur_27님의 사진· Jun 19, 2026· Science

    이 사진에 대해

    The image features a woman in a dark coat and white blouse, wearing a distinctive light-colored helmet with antennae on top and a ring-like protrusion on the right side. She is seated on a bench, examining a small object in her hands. The background appears to be a cityscape with trees and buildings. The overall aesthetic is vintage and monochromatic. There is no on-screen text visible.

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    Night vision eyedrops trial results2Night vision eyedrops trial resultsWalter Lewin on physics classesWalter Lewin on physics classesNikola Tesla solitude quoteNikola Tesla solitude quoteUniverse looping every 500 billion years2Universe looping every 500 billion yearsMax Planck portraitMax Planck portraitFeynman divorce complaint CalculusFeynman divorce complaint CalculusThe CuriesThe CuriesJean and Ororo moment2Jean and Ororo momentN44 nebula in deep spaceN44 nebula in deep spaceRain on Different PlanetsRain on Different Planetsbrain tissue at nanoscale resolution4brain tissue at nanoscale resolutionFive Sisters Stephan's QuintetFive Sisters Stephan's Quintetfirst city on Mars name ideafirst city on Mars name ideaSombrero Galaxy HubbleSombrero Galaxy HubbleNASA Mars iridescent clouds imageNASA Mars iridescent clouds imageCarl Sagan star observationCarl Sagan star observation
    사진
    Sur
    Sur@sur_272mo
    💭Science💭Tech
    Radio Hat 1949 Man-from-Mars

    @sur_27In 1949, you could buy a radio built into a pith helmet for $7.95. Called the “Man-from-Mars Radio Hat,” it had two vacuum tubes, a loop antenna, and a battery pack, picking up stations within a 20-mile (32 km) radius. A fascinating piece of early wearable tech.

    원본 게시물 보기

    Radio Hat 1949 Man-from-Mars

    @sur_27님의 사진· Jun 19, 2026· Science

    이 사진에 대해

    The image features a woman in a dark coat and white blouse, wearing a distinctive light-colored helmet with antennae on top and a ring-like protrusion on the right side. She is seated on a bench, examining a small object in her hands. The background appears to be a cityscape with trees and buildings. The overall aesthetic is vintage and monochromatic. There is no on-screen text visible.

    Science 사진 전체 보기

    ?

    아직 댓글이 없습니다. 첫 댓글을 남겨보세요!

    Science 사진 더 보기

    Science 사진 전체 보기
    Night vision eyedrops trial results2Night vision eyedrops trial resultsWalter Lewin on physics classesWalter Lewin on physics classesNikola Tesla solitude quoteNikola Tesla solitude quoteUniverse looping every 500 billion years2Universe looping every 500 billion yearsMax Planck portraitMax Planck portraitFeynman divorce complaint CalculusFeynman divorce complaint CalculusThe CuriesThe CuriesJean and Ororo moment2Jean and Ororo momentN44 nebula in deep spaceN44 nebula in deep spaceRain on Different PlanetsRain on Different Planetsbrain tissue at nanoscale resolution4brain tissue at nanoscale resolutionFive Sisters Stephan's QuintetFive Sisters Stephan's Quintetfirst city on Mars name ideafirst city on Mars name ideaSombrero Galaxy HubbleSombrero Galaxy HubbleNASA Mars iridescent clouds imageNASA Mars iridescent clouds imageCarl Sagan star observationCarl Sagan star observation