Abstract: Design optimization of mechanical system components, such as spiral bevel gears, is important due to their complex geometry and design constraints. However, the complex geometry of these ...

In September, NASA announced the discovery of a possible sign of life, known as a potential biosignature, on Mars. The Perseverance rover, which has been exploring a dried-up lakebed for years, found ...

An interstellar comet that sparked speculation about extraterrestrial visitors has departed the solar system after making its closest approach to Earth at 270 million kilometres on December 19, with ...

Two legendary steel-frame 9mm pistols stand at opposite ends of firearms history yet share remarkable similarities. The Browning Hi Power, designed by John Moses Browning and completed in 1935, ...