As any seasoned bladesmith knows, there are a number of ways to shave weight from a knife. You can use lighter materials, such as carbon fiber and titanium. You can streamline the handle, removing ...

Disposable coffee cups, the kind used at most cafes and take-out shops, pose a major sustainability issue. More than 40 billion are tossed in the waste each year in the U.S. alone. Whether they’re ...