Carburetors are old news. We've moved on to electronic fuel injection long ago. But of the two main varieties of fuel injection, port and direct, there hasn't been a clear winner as of late. Both direct and port fuel injection have distinct advantages,

Read full article: Roanoke Reset helps clean lawns for those in need Photo of crews responding to Smith Mountain Lake boat and dock fire. Crews respond to dock, boat fire at Smith Mountain Lake Read full article: Crews respond to dock, boat fire at Smith ...

Typically, a well will produce at its highest production rate at the beginning of the production cycle; and then production will wane. In an effort to increase production from both oil and natural gas wells, secondary production methods are employed.

If you think direct-injection diesel engines made their debut in the 1980's, think again. The first diesel without extra plumbing debuted decades earlier.

Figure 1. Pressurized nitrogen gas is injected into a melt to penetrate the part via a network of thicker cross-sectioned gas channels (click to enlarge). Gas-assist injection molding was developed several years ago to overcome the limitations of ...