[{"data":1,"prerenderedAt":133},["ShallowReactive",2],{"project-17382508":3},{"id":4,"name":5,"line":6,"line_source":7,"title":8,"url":9,"domain":5,"maker":10,"posted_at":11,"year":12,"points":13,"comments":14,"rank_in_year":15,"shown_in_year":16,"top":17,"tier":18,"category":19,"subcategory":20,"format":21,"keywords":22,"reception":27,"sentiment":28,"stance_mix":29,"scored_comments":32,"aspects":33,"strip":36,"post_text":28,"what":38,"said":49,"maker_in_thread":75,"shape":80,"grid":83,"attempts":90,"same_week":96,"maker_shows":94,"maker_hidden":126,"reader_version":127,"card":128},"17382508","anfractuosity.com","Optical stripe reading and floppy disk imaging attempt","title","Show HN: Optical stripe reading and floppy disk imaging attempt","https:\u002F\u002Fwww.anfractuosity.com\u002Fprojects\u002Foptical-magnetic-stripe-reading\u002F#start","anfractuosity",1529777355,2018,71,3,609,2155,29,"notable","hardware","magnetic stripe and floppy disk imaging","other",[23,24,25,26],"magnetic stripe reader","floppy disk imaging","magnetic developer","optical reading","quiet",null,{"positive":30,"neutral":30,"mixed":31,"critical":31},1,0,2,{"execution":34,"idea":35},{"positive":31,"critical":31},{"positive":30,"critical":31},[14,31,37],5,{"problem":39,"audience":28,"pricing":28,"motivation":28,"time_to_build":28,"stack":47,"openness":48,"stage":48,"team_size":48},{"value":40,"source":41,"evidence":42},"Reading magnetic data optically from stripes and floppy disks by visualising the magnetic field.","inferred",[43],{"id":44,"by":45,"text":46},"17385894","sdrothrock","Definitely give it a shot and let us know! I'm really curious about this and it really should be possible as long as you can visualize the magnetic field. For comparison's sake…",[],"unknown",{"praise":50,"objections":56,"requests":63,"questions":69,"alternatives":70},[51],{"value":52,"source":53,"evidence":54},"Commenter encourages trying the approach and finds it plausible.","commenter",[55],{"id":44,"by":45,"text":46},[57],{"value":58,"source":53,"evidence":59},"Q-View developer and iron nanoparticles may lack resolution for floppy disks.",[60],{"id":61,"by":45,"text":62},"17385404","> No, they’re just from using the Q-View magnetic developer & iron nanoparticles, which I don’t think give fine grained enough detail for floppy disks unfortunately and then just…",[64],{"value":65,"source":53,"evidence":66},"Try a better camera setup such as a macro lens or metallurgical microscope.",[67,68],{"id":61,"by":45,"text":62},{"id":44,"by":45,"text":46},[],[71],{"value":72,"source":53,"evidence":73},"Visual reading of vinyl records via scanning.",[74],{"id":44,"by":45,"text":46},{"comments":30,"answered":31,"key":76},[77],{"id":78,"text":79},"17385797","Yeah that's a good point. I've got an Olympus BHM metallurgical microscope now along with the camera attachment for an SLR which I should try out for this.",{"commenters":32,"max_depth":14,"maker_replies":30,"first_comment_mins":81,"lifespan_hours":82},787,16,[84,86,88],[61,31,14,85,45,31],"project\u002Fneutral\u002Fexecution",[78,31,31,87,10,30],"maker\u002Fneutral\u002Fexecution",[44,31,37,89,45,31],"project\u002Fpositive\u002Fidea",[91,95],{"id":92,"t":93,"points":94,"comments":30},"9998351",1438624952,8,{"id":4,"t":11,"points":13,"comments":14},[97,102,107,112,117,121],{"id":98,"name":99,"points":100,"category":101},"17365150","Why Do I Procrastinate?",611,"productivity",{"id":103,"name":104,"points":105,"category":106},"17373465","Material Dashboard",436,"dev_tools",{"id":108,"name":109,"points":110,"category":111},"17405722","B2blaze",359,"languages",{"id":113,"name":114,"points":115,"category":116},"17400164","mimic-bloomberg-menu-no-js",355,"learning_science",{"id":118,"name":119,"points":120,"category":111},"17398506","The Vue.js Handbook",262,{"id":122,"name":123,"points":124,"category":125},"17377088","Kanji RNN",166,"ai",false,"v2",{"id":129,"name":5,"line":6,"ai":126,"cat":19,"year":12,"points":13,"comments":14,"rec":27,"s":28,"top":17,"kw":130,"maker":10,"domain":5,"tier":18,"attempts":32,"strip":131,"url":9,"mix":132,"praise":52,"objection":58,"sub":20},17382508,[23,24,25,26],"305",[30,30,31,31],1794036567164]