Abstract: The simultaneous generation of an electron beam with high energy and high current density with a high-fill factor is challenging for a backward wave oscillator (BWO) and other linear-beam ...

This video explores the fascinating reasons behind the physical properties of elements. It answers questions about why mercury is a liquid at room temperature, why gold has its distinctive yellow ...

Anyone with an older phone that’s currently connected to the O2 network needs to upgrade immediately. The popular UK provider has just issued a final warning, and ignoring it could leave some without ...

The O2 has delivered another consecutive record-breaking year, hosting 239 arena performances in 2025, a 19% increase on 2024. The live entertainment venue, owned and operated by AEG, reported that ...

An 80-year-old woman in Japan lost all her life savings to a scammer posing as an astronaut who claimed to be stranded on a besieged spacecraft and needed money to buy oxygen, according to a report.

We can now detect single electrons with the resolution of a few trillionths of a second, and this could prove essential for building a new generation of quantum electronic devices. Traditional ...

In this study, chiral gold nanoparticles with a concave vortex cube structure were employed as the chiral substrate, exhibiting highly tunable optical chirality and intriguing chiral-induced spin ...

Hundreds of thousands die each year with millions more suffering due to lack of access to medical oxygen. Six out of every ten people globally lack access to safe medical oxygen, resulting in hundreds ...

After first announcing in September 2023 that part of its plan to evolve its network to enhance customer experience and improve services, it was pulling the plug on legacy mobile, Virgin Media O2 ...

Recently, I have been hard at work, creating some really complex PowerShell scripts related to a few projects that I have been working on. One of the big lessons that I have learned through all of ...

Faculty of Applied Physics and Mathematics, Gdansk University of Technology, Narutowicza 11/12, Gdańsk80-233, Poland School of Chemistry, University of Southampton, Highfield, SouthamptonSO17 1BJ, U.K ...