The Archimedes screw, an ancient Greek invention for lifting water. Learn about its origins, how it works, and its modern applications.

Lead screws from igus, Providence, R.I., use high-performance self-lubricating plastic material nuts, eliminating the need for lubrication and making the motion-control devices suitable for clean ...

Please provide your email address to receive an email when new articles are posted on . The surgical management of unstable cervical or cervical-thoracic fractures related to trauma or cervical ...

We've all been there. You finally muster up the energy to fix something. You have your screwdriver with you, only to find a hexagonal socket waiting for you on the screw that needs tightening. Also ...

Did you know that choosing the wrong drywall screws can cause screws to break, rust, slip, and even affect the quality of your project? Whether you are a builder, a wholesaler or a user of drywall ...

It's one of the age-old carpentry questions: when to use screws? When to use nails? And sometimes there's no consensus. The DIY experts at at Stack Exchange are here to help. Is there a case where ...