#prototypeUnmoderated tagAll postsExplore CommunitiesTrending CommunitiesNewcomers' CommunitySteemit FeedbackSteemitCryptoAcademyআমার বাংলা ব্লগKorea • 한국 • KR • KOSteem AllianceSTEEM CN/中文AVLE 일상Tron Fan ClubBeauty of CreativityComunidad LatinaWORLD OF XPILAR#prototypeTrendingHotNewPayoutsMutedjoeboukhalil (35)in #invention • 2 months agoThermal Inkless Pen: Writing on Heat-Sensitive PaperIntroduction What about the idea of a pen that doesn't run out of ink? So thatyou recharge and could always work.…