Nobody likes hearing their neighbors' music, TV shows or loud conversations. Soundproof wall materials, however, can be quite thick and expensive. Swedish scientists have developed a thinner, less ...

The smooth featureless walls around your home are easy to paint and great for hanging artwork, but they’re also very effective at transmitting soundwaves from room to room—a less desired feature.

The Series 1510 miniature precision ball screw from (Steinmeyer Inc., Burlington, Mass., comes with a double nut preloaded by a spring between the two nuts. This compensates for torque variations due ...