Passive defense is one of the most central areas of the preparation fields and is among the elements of national power, General Bagheri emphasized. He added that this area is a set of civilian ...

Solar hot water heaters are efficient, environmentally friendly and can help save money. But, they’re not ideal for all ...

Solar heating uses the sun’s thermal energy to heat liquids or spaces. This article looks at the main solar heater types, ...

Goldman Sachs released a list of companies with the highest passive ownership in the S&P 500 ( SP500) as part of a broader look at the increase of such ownership across the benchmark.