The authors of the present study used staining techniques to document the bone and cartilage changes which allow rapid transformation of the frogs from clinging tadpoles to digging adults. (sciencedaily.com)
Both men, under the influence of Ms. Frankenthaler, began experimenting with stain technique, thinning their paint and applying it to unprimed canvas to create translucent layers of color that revealed the canvas surface. (nytimes.com)