Safer Liquid Natural Gas
A 1976 NASA technical report issued for engineers, filed under ceramics, silicon nitrides, thermal stresses and turbine engines, held by the NASA Technical Reports library. Its single coarse-screen halftone photograph shows a worker operating a shielded torch or cutting rig in deep shadow, offering blocked blacks, blown highlights and heavy grain that suit duotone treatment, collage cutouts and industrial-archive textures.
