Image Credit: Stock Exchange Welding with the Wrong Current The type of metal and electrode you’re using will determine which current to use (AC or DC) and how much to use. There are plenty of things that can go wrong when you’re just starting to weld. From too long an arc to welding with too much power, the quality of your finished weld depends on avoiding some common mistakes. While it’s best to take a welding class and learn from an expert, here are some important welding tips to keep in mind when you strike your arc. Check your welder’s. General Welding Tips, Resources MORE >>

We feel for the folks in Connecticut, Delaware, Florida, Maine, Maryland, Massachusetts, New Hampshire, New Jersey, New York, North Carolina, Pennsylvania, Rhode Island, South Carolina, Vermont, Virginia, and Washington D.C. At Proven.com we are saddened to hear the news of the destruction and damage caused by hurricane (then tropical storm) Irene this past weekend. who will have to spend time and money re-building their homes and businesses and getting their lives back on track. At Proven.com we want to help. MORE >>

This morning, I’m flying to Washington DC to attend the Holcim Awards for Sustainable Construction.  Holcim Awards web page. The ceremony will be at the National Building Museum tonight, followed by media briefings tomorrow morning at the Willard Intercontinental Hotel , just a few blocks from the White House. Holcim Canada Inc. is footing our travel costs, including airline and hotel expenses, as part of an initiative which undoubtedly costs the company a significant amount of money.  Advertising and marketing Events MORE >>

We’ll See You Soon Founded in 2006, SolarCity continues to grow, and now serves more than 10,000 customers in Arizona, California, Colorado, Maryland, Massachusetts, New Jersey, New York, Oregon, Pennsylvania, Texas and Washington D.C. SolarCity is the Nation’s First Full Service Solar Provider SolarCity is the nation’s leading full-service solar provider for homeowners, businesses and government organizations—the first company to provide solar power system design, financing, installation and monitoring services from a single source. Sites We Like MORE >>

No word on whether Garfield had to withstand temperatures as hot as last week, when Washington D.C. In most areas of the United States these days, life would be almost unimaginable without a welcome blast of cool, indoor air. As a sort of ode to this modern antidote to triple-digit temperatures, Slate recently ran “A History of Air Conditioning.&# For everyone from HVAC service technicians to ordinary people who love to spend a hot day indoors, enjoying the cool air, there were plenty of interesting things to note. Here are some of the highlights. of American households had a TV. MORE >>