The Disappeared: Beyond Winning and Losing

When “others” (such as women and people of color) make innovative contributions in scientific and technical fields, they often “disappear” from later history and their contributions are ascribed elsewhere. This is seldom deliberate—rather, it’s a result of the accumulation of advantage by those who are expected to innovate. This article…

How China’s State-Sponsored Social Networks Control Misinformation—and Dissent

Misinformation takes on new meaning when the government decides what counts as truthState regulators around the world have responded to the proliferation of online rumors and propaganda on social media sites with a broad variety of actions. Australia, Brazil, and Indonesia have deployed government task forces and investigations, while Belarus,…

Self-Lubricating Linear Bearings Can Reduce Operating and Maintenance Costs

Recirculating ball linear bearing systems require periodic maintenance and lubrication to ensure they operate properly and do not cause damage to the ball bearings or guides. Figure 1. Linear bearings. Source: Igus Linear motion applications usually require bearings and guides that traditionally come in two basic cross-sectional configurations: rectangular or…