05.07.2009
Number of fatalities per 100 million man hours worked. Fatality is defined as death due to work related injury or illness. The fatality rate is the number of deaths per 1000 workers.
What is pejoratively known as the “fifth fuel” refers usually to energy conservation. This is in additional to oil, coal, nuclear, renewable sources. Namely, that beyond petroleum, coal, nuclear and alternative energy, there’s another, untapped resource: efficiency
Fiber-optic lines are strands of optically pure glass as thin as a human hair that carry digital information over long distances. Fiber optic telephone and television cables are sometimes placed inside natural gas pipelines thus merging fiber optic cable with underground gas lines
Natural gas is a major feedstock in ammonia production and ammonia is a major component of nitrogen fertilizers. In addition, considerable energy (natural gas) is required to manufacture the fertilizer, so that the price is very closely linked to the price of natural gas