Power systems with resonance earthing are widely in operation in Central European countries. The German power system statistic [3] indicates that 87 per cent of the MV-systems having nominal voltages ...

Low-impedance earthing is applied in medium-voltage and high-voltage systems worldwide with nominal voltages above 10 kV. Power systems having nominal voltages U n? 132 kV are generally operated with ...

The annual Orionid meteor shower is set to peak Sunday night into Monday at a rate of 10 to 20 meteors per hour. Here’s how ...

Climate and Earth system modelling is the use of mathematical representations of key components and properties of the atmosphere, ocean and biosphere to construct computer models. These models ...

Comet Tsuchinshan-ATLAS has an 80,000 year orbit and, it just so happens, that it is now approaching its closest pass to ...

How, when, and where to look to see Comet C/2023 A3 (Tsuchinshan-ATLAS) after sunset this Wednesday, Oct. 16, with sky charts ...

How, when, and where to look to see Comet A3 Tsuchinshan-ATLAS after sunset this Saturday, Oct. 12, with sky charts, before ...

This event is linked to Halley’s comet, and occurs as another comet, Tsuchinshan-ATLAS, remains visible. But a nearly full ...

A ” once in a lifetime ” comet is expected to light up the night sky as it passes by Earth later this week. Comet Tsuchinshan ...

Qiang Zhang is a professor at Department of Earth System Science, Tsinghua University. His research interests include quantifying emissions of atmospheric compositions, coupled human and ...

When homes and businesses open at The Heights on St. Paul’s East Side, they’ll pull heat directly from the earth, cycling ...