A new microscale gas chromatography system integrates all fluidic components into a single chip for the first time. The design leverages three Knudsen pumps that move gas molecules using heat ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. David Kindness is a Certified Public ...

Abstract: With the accelerating global urbanization process, urban transportation systems are facing multiple challenges, including surging traffic flow, environmental protection, and road safety. To ...

Mullets, stealth and which other Second World War Fighters Achieved This Holy Grail? The P-51 Mustang has been described as the most decisive combat aircraft in history. Its ability to escort ...