#prototypeUnmoderated tagAll postsExplore CommunitiesTrending CommunitiesNewcomers' CommunitySteemitCryptoAcademySteemit Feedbackআমার বাংলা ব্লগKorea • 한국 • KR • KOSteem AllianceBeauty of CreativitySTEEM CN/中文Steem POD TeamTron Fan ClubComunidad LatinaAVLE 일상#prototypeTrendingHotNewPayoutsMutedjoeboukhalil (35)in #invention • 6 days 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.…