Let’s be real, that same mug of coffee every single morning can start to feel like groundhog day. You love the ritual, you ...

Abstract: Touchless hand gesture recognition is one of the hottest areas of the human–computer interaction (HCI). In this article, we propose a low-complexity air-digit-writing recognition method ...

Lindsey Ellefson is Lifehacker’s Features Editor. She currently covers study and productivity hacks, as well as household and digital decluttering, and oversees the freelancers on the sex and ...