The conversation between human and AI assistant.
[|Human|] From the passage provided, provide the two scenarios in bullet form where radiative heat transfer is an important consideration.
[|AI|] Radiative heat transfer is an important consideration when:
- Engineering applications for very hot objects
- Engineering applications for objects with a large temperature difference
[|Human|] 
From the passage provided, provide the two scenarios in bullet form where radiative heat transfer is an important consideration.