This video covers a complete oil change and oil level sensor replacement on the BMW E39 M5. We go through the service process ...

Keeping children safe online in 2026 seems like an impossible task. Luckily, the best parental control apps can do the hard work, while you focus on the things that matter. My experts have been ...

Abstract: The vortex polarization direction indicator (Vortex-PDI), comprising a half-wave vortex retarder and an analyzer, enables single-shot characterization of linearly polarized light. This study ...