About: http://webisa.webdatacommons.org/422948216

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	The helmet's aerodynamics; the liner design material, thickness and shape; the air vents; the visor and other features all contribute to the volume and frequency of helmet noise.
http://www.w3.org/ns/prov#wasQuotedFrom	webbikeworld.com