#inventionUnmoderated tagAll postsExplore CommunitiesTrending CommunitiesNewcomers' CommunitySteemitCryptoAcademySteemit Feedbackআমার বাংলা ব্লগSteem AllianceKorea • 한국 • KR • KOTron Fan ClubBeauty of CreativityAVLE 일상Comunidad LatinaSTEEM CN/中文Steem POD Team#inventionTrendingHotNewPayoutsMutedjoeboukhalil (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.…