In recent days, aluminum seems to be getting a lot of play. Aluminum is attractive and lightweight, and as nature’s most abundant metal, it is plentiful, easy to work with and readily recyclable. These features make aluminum attractive for a variety of consumer products.
Many of you are probably unaware of the number of different types of bridges. Just the basic list includes beam bridges, cantilever, arch, truss, suspension, cable-stayed, movable, floating and combination bridges. Within these basic categories there are a number of subcategories as well. Movable bridges, for instance, include the bascule (drawbridge), vertical lift and the swing bridge to name just the most common.
With today’s cost of energy, it’s no wonder there is a renewed interest in generating electricity by means of the sun’s energy. This is not a new concept. The development of solar energy goes back more than 100 years.
When July comes to mind, it’s natural to think independence. When you think independence, it’s natural to think of the Declaration, which was adopted on July 4, 1776. But when you think of the Declaration, is it natural to think that more than 10% of its signers were metalworkers of the day
While the February 2008 Now You Know discussed tunnel boring, it seemed appropriate to look at deep drilling in light of the recent Chilean miner rescue. It is especially appropriate because without thermal processing, the rescue would have taken much longer or might not have been possible at all.