This article has been clarified to reflect that the film may be among the earliest viewable film footage in Massachusetts. It may be among the earliest viewable film footage taken in Massachusetts.

Laboratory ball mills are a key component in the battery production value chain. They are used in several key application areas across research and development, manufacturing, and quality control ...

It’s easy to assume that not much has changed with face mills for a while. There’s been so much attention on other milling processes over the last few years, and face mills, or shell mills, were ...