In this video i talk about a pen that can write in air. it is impossible to say but its possible and i also talk about some interesting facts. So, if you get better information from this video please like, share, comment and subscribe to our channel.<br /><br />"Copyright Disclaimer under Section 107 of the copyright act 1976, allowance is made for fair use for purposes such as criticism, comment, news reporting, scholarship, and research. Fair use is a use permitted by copyright statute that might otherwise be infringing.<br /><br />Thanks for watching...<br />#MEF
