Abstract: In this article, we present a sensitivity analysis to show under what conditions corona on vertical conductors may become significant. A lightning strike to a 600-m-tall grounded metallic ...

Can you chip in? This year we’ve reached an extraordinary milestone: 1 trillion web pages preserved on the Wayback Machine. This makes us the largest public repository of internet history ever ...

Some people are at higher risk of more severe disease or outcomes from COVID-19 infection than others. However, COVID-19 vaccines help reduce the risks of severe illness, hospitalization and death ...

Abstract: In order to study the initiation characteristics of corona discharge at both ends of the suspended conductor, a corona discharge model is established, which based on hydrodynamic equation ...

Map of election results. Use arrow keys to move around the map. Press Enter to view state-level map. Coronavirus map showing the latest updates on how many cases, deaths and hospitalizations have been ...