Peugeot has revealed its new Polygon Concept car and the tiny EV has a Hypersquare steering wheel and is built for ...

The term "involute" refers to the shape of the teeth: the curves of the teeth are involutes of circles, which are curves that optimize gear performance. Figure 1.1.2: The three marked circles are key ...

The Willow Hill Covered Bridge in Lancaster County is that kind of time machine. This crimson beauty stands as a testament to Pennsylvania’s rich architectural heritage, beckoning travelers to pause ...

The Simeone Foundation Automotive Museum houses a collection so extraordinary that gearheads from Erie to Easton and beyond are hitting the Pennsylvania highways just to spend a few hours in its ...

Parallel lines are lines that never cross each other - they keep the same distance apart from each other. When two lines intersect, the opposite (X) angles are equal. On parallel lines, alternate (Z) ...

Cross threading occurs when the bolt is misaligned with the threads in the nut. It can destroy the threads, or cause the nut to jam. The standard beveled end process makes cross threading a ...