DEWALT has updated its line of construction saw blades. The yellow rim has been removed from the blades, making it easier to inspect the sharpness of the blade’s carbide teeth. The 71⁄4-in. blades also now feature a thinner plate design for faster cuts in material that doesn’t require much force. The new thin-plate design is the same as found on the manufacturer’s precision saw blades. DEWALT; www.dewalt.com
Because it can moderate the damaging effects of earthquakes, base-isolation is a technique used primarily in seismically active regions. ENR takes a look at some of the largest applications of base-isolation technologies in the world.