Hundreds of millions of the world's people are ill housed, live in rude shacks, under palm fronds, in caves or hovels. Last week the Rockefeller brothers' Ibec Housing Corp. announced that it will undertake worldwide production and marketing of a simple machine that promises much for the homeless millions. Called the Cinva-Ram Block Press, it makes sturdy brick from a down-to-earth mixture of 90-95% dirt and 5-10% cement or other binding admixtures, such as lime or animal dung.
Resembling an old-fashioned hand printing press, the machine can be operated by two men, one of whom pours in the soil-cement mixture...
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