Usage examples (27)

• Here is a spherule which is producing it in an elastic solid.
• At one site at El Penon, the researchers found 52 species present in sediments below the impact spherule layer, and counted all 52 still present in layers above the...
• The fine dust of Mr. Aitken exists everywhere, even in the upper regions of the atmosphere; many of its particles are of ultra-microscopic fineness, one of them must exist in...
• A microscope picture shows the spongy texture of a carbon spherule.