This file type includes high-resolution graphics and schematics when applicable. The 3rd Edition of Dudleyâ s Handbook of Practical Gear Design and Manufacture by Stephen P. Radzevich is a great ...

Whether you have a mechanical limited-slip differential (LSD) in your car you stand to benefit from knowing how one works. Not so you can know how to fix it or anything—just because they’re a ...

Gears, especially in open gearing applications, share a set of well-known performance problems that crop up again and again across many different applications. The most common ones include excessive ...

Many mechanical devices have been inspired by examples in nature, but it’s not often that nature replicates something only known to be made by human beings. Meet Issus coeleoptratus, more commonly ...

This interactive 3D-printed book is a marvel of innovation, blending engineering and creativity. Learn how it’s captivating ...

Gears and wheels are not very common in nature. Recently however, biologist have discovered a precision gearing mechanism that is built and used by an insect known as a planthopper. The bug employs ...

The small hopping insect Issus coleoptratus uses toothed gears (magnified above with an electron microscope) to precisely synchronize the kicks of its hind legs as it jumps forward. All images ...