Controllable pitch propellers adjust blade angle instead of engine speed, letting ships change thrust, direction, and handling instantly. This explains the physics, advantages, and tradeoffs compared ...

An inside look at the engineering and manufacturing process that gives propellers their precise curves. From forming to final checks, accuracy is essential. Why is curvature so important to propeller ...

Two teams that have represented the NFC in each of the last three Super Bowls will meet on Wild Card Weekend, as the 12-5 San Francisco 49ers take on the 11-6 Philadelphia Eagles. The defending champs ...

Tongue thrust is a condition that frequently remains undetected. Many people live with it for years without realizing its impact. It happens when the tongue pushes forward against the teeth during ...