Question

how to insulates heat​

Answer 1

Answer:

Insulation against heat transfer by radiation is usually done by using reflective materials. A thermos bottle not only has an evacuated lining to prevent heat transfer by conduction, but it also is made of shiny material to prevent radiation heat transfer.

Answer 2

Answer:

Insulation against heat transfer by radiation is usually done by using reflective material.

I Hope u got :-)