Radiography in the Earth Sciences and Soil Mechanics

Radiography, the use of penetrating radiation to produce shadow images of the internal structure of materials, has been with us since Roentgen made his discovery of x rays in 1895. However, applications of radiography in the earth sciences and in the related field of soils engineering have, until recent­ ly, been slow to develop. Bruhl reported optimistically on applications in paleontology as ear...