About: http://webisa.webdatacommons.org/387168155

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	Pulleys have only a few inches and at most maybe a pound, and most of the weight to remove is near the center.
http://www.w3.org/ns/prov#wasQuotedFrom	rotarypower.pl