Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. April 5, 2017 Add as a ...

For years, the knife was the most commonly used tool to sharpen the wooden writing instrument known as a pencil (which historians believe was invented in the 15th or 16th century). But whittling the ...

Add Yahoo as a preferred source to see more of our stories on Google. Although it’s not very glamorous, everyone needs a reliable pencil sharpener in their home. Whether your kids write with pencils ...

Hand-cranked pencil sharpeners work just fine, and maybe that is what makes them a perfect object to get the heavy duty treatment. And if a nitro pencil sharpener wasn't enough for you, YouTuber Giaco ...