Our friends at Friction Facts are at it again, this time with a new test fixture to measure the friction generated by bottom brackets. In this round, Friction Facts tested 35 different models from ...

While d'Alembert's paradox theoretically showed no drag in ideal fluids, real-world drag is a complex force that aircraft designers constantly fight, balancing thrust at cruising speed. Drag is ...

On all three key fronts in aviation's battle against fuel burn - aircraft weight, engine efficiency and drag - there are promising applications of nanomaterials. However, as a recent London conference ...