Cast iron is a pretty durable material when it comes to, say, skillets. But for gas and oil pipelines?  As it turns out, not so much. Cast and wrought iron were the metals of choice for pipelines constructed in the US prior to 1940.  Even after steel pipelines came into vogue during t

It’s been called “an opportunity we can’t miss.” It’s been promised to be the thing that will “single-handedly” turn California’s economy around, increasing state and local tax revenue by $4.5 billion and bringing in some 2.8 million jobs by 2020. It’s the much-hyped California shale