About: http://webisa.webdatacommons.org/337051892

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Granular materials, including sand and soil, have long been used to absorb impacts, but if the grains are all the same size, the shock waves are not always dispersed effectively.
http://www.w3.org/ns/prov#wasQuotedFrom	physicsworld.com