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Although all U.S. manufacturers are now worried about pollution controls, no industry is more concerned-or has better reason to be-than the automakers. Under the Clean Air Act of 1970, Detroit's 1975 models must be built to emit 90% less of both carbon monoxide and gaseous hydrocarbons than is given off by 1970 cars; by the 1976 model year, emissions of nitrogen oxides must be reduced by a similar amount. If Detroit fails to meet these deadlines, the Federal Government can close the industry down. As a result, the automakers have launched a crash program, investing both...
Electronic Mud. One of the most popular exhibits is Robert Rauschenberg's Mud Muse. It is a tank filled with sloppy, coffee-colored drillers' mud supplied from one of Teledyne's offshore oil rigs. Pipes in the floor of the tank emit air bubbles, which plop to the surface at random with a kind of lazy flatulence. The pipes in turn are controlled by an elaborate electronics system, which converts signals from taped music and random noise in the room into a pattern of air release. "I think," says Rauschenberg, "you immediately get involved with Mud Muse...
...secret is an afterburner developed by the Blu-Surf Division of Hayes-Albion Co. of Jackson, Mich., and installed on a stack of the S.D. Warren Co., a paper mill whose emissions have long irritated Muskegon residents. Paper mills smell because they emit sulfide and methyl-mercaptan gases. Instead of venting those gases into the air, the destinking system sends them into a special furnace fed by pressurized air and natural gas. The fumes are then forced through a flame that burns at 1350° F., which is the oxidation point of the sulfides and mercaptans. The resultant oxides...
...electrostatic precipitators and wet scrubbers that would cut air pollution by 99%. But environmentalists retorted that even 1% of the huge plants' gases and soot will constitute much more pollution than New York or Los Angeles power plants now produce. Each day, according to environmentalists, the complex will emit 1,970 tons of poisonous sulfur dioxide, 1,280 tons of nitrogen oxides and 240 tons of fly ash. Obscuring the nation's clearest skies, the soot would cripple the region's astronomical observatories. Particles would also rain down on six national parks, three national recreation areas...
Super Sensors. All electronic detection systems have certain similarities. The detecting devices, called sensors, come in many shapes and sizes and generally emit one of three kinds of waves: ultrasonic, light and microwave. When anything disturbs the waves given out by the sensors, the circuit is broken and the alarm is tripped. The sensors can be placed anywhere: in an electric socket, on a tabletop, at a window sill, under a door mat, and even in special wires of a flyscreen...