Assertion: radiator's surface | /r/AtLocation | close association
Facets:
value: with a cold surface
type: OTHER
Source sentences:
text: Electricity can be generated by a thermogradient, where a heated surface is placed in close association with a cold surface, and two materials with differing electric conducting properties are place between the thermogradient, allowing the build-up of electrons on one side, generating a current with the opposite side.