Scientists from Stellenbosch University in South Africa have designed a new gravity energy storage system, based on linear electric machines (LEM), that could be used in decommissioned mines. “The ...

Low-friction, high-stiffness ball guides support on one rail (top) or two (bottom). The trade-offs for this performance are higher cost and more noise. The shortest path between two points is a ...

Armed with even with the most-sophisticated motion controller, engineers can still find it difficult to attain precise linear motion unless the mechanical components are appropriately designed for the ...