21. The inverse or time-reversed process of absorption is thermal radiation . 22. But the clouds we're talking about here are opaque to its own thermal radiation . 23. For example, collapsing gas clouds dissipate energy through thermal radiation . 24. Thermal radiation enters the instrument through a three-mirror antenna system.25. Unlike the Wien approximation, Planck's law accurately describes the complete spectrum of thermal radiation . 26. This heat is distributed to the ambient by thermal radiation , convection, and thermal conduction. 27. Also possible is transfer of heat by a combination of conduction and thermal radiation . 28. Heat transfer to the food when using a grill is primarily through thermal radiation . 29. He chaired the Armed Forces Special Weapons Project Panel on Thermal Radiation from 1949-56. 30. The ability to sense infrared thermal radiation evolved independently in various families of snakes.
