About: http://webisa.webdatacommons.org/394137393

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	In this theory page, i will explain in details the following types of touch switches (which are actually the most popular and easy to make):
http://www.w3.org/ns/prov#wasQuotedFrom	pcbheaven.com