athermanous

Definitions

Not transmitting heat.

not-comparable

Equivalents

Examples

“We see⟳ also why in an athermanous body an increase⟳ of thickness does not augment the radiation, —the reason⟳ being that, since it is already athermanous, this increase⟳ cannot possibly make⟳ it absorb more heat, and therefore cannot make⟳ it radiate more.”

“Substances which admit⟳ of radiation taking place⟳ through them are called Diathermanous. Those which do not allow⟳ heat to pass⟳ through them without becoming themselves hot are called Athermanous.”

“Substances which are transparent to visible light⟳ waves are not necessarily transparent to radiant heat waves. Thus glass is distinctly athermanous.”

“A closed hollow solid whose athermanous sides have⟳ the same temperature (thermodynamic equilibrium) , is filled with "black-body radiation“.”

CEFR level