#prototypeUnmoderated tagAll postsExplore CommunitiesTrending CommunitiesSteemitCryptoAcademyNewcomers' Communityআমার বাংলা ব্লগSteem AllianceKorea • 한국 • KR • KOSTEEM CN/中文Tron Fan ClubAVLE 일상Beauty of CreativityComunidad LatinaSteem For LifestyleWORLD OF XPILAR#prototypeTrendingHotNewPayoutsMutedjoeboukhalil (35)in #invention • 3 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.…