Bar code scanning is an easy way to track your business inventory or even keep tabs on office supplies. Many bar codes contain a lot number. A lot number is an ID that shows which batch or lot a ...

Your smartphone is full of surprises. There's an app if you want to use your phone as a magnifying glass or scanner. Tap or click here for hidden apps on your smartphone and how to find them.

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. The pandemic and our desire to minimize contact with objects and ...