The shiny surface is a reflector, to reflect the heat outwards towards you.
A shiny surface reflects 'more' light than a matt surface.
Matt surfaces are better absorbers of thermal radiation than shiny surfaces, as the light "bounces" around on the Matt surface meaning more energy can be absorbed, compared to a shiny surface. A look at a cross section of a Matt surface may be helpful.
A matte surface is non-reflective. It is the opposite of shiny.
metalloids like titanium and gold, in the center of the periodic table (im only 13 and i knew that)
Enamel
Shinny silverd surface
It is in fact the best radiator. Dull black is the best absorber and emitter. Then shiny black, followed by white, then silver. While the best reflector goes the other way around (silver's the best, then white, followed by shiny black, then dull black)
heat absober absorbs heat & refelector reflect it
Because shiny surfaces are poor emitters of radiation and therefore, no heat will be lost to the surroundings, just reflected off the shiny surface back to the toast.
A fresh surface of iron is shiny.
Fresh mercury surface is shiny.
silver shiny
A fresh surface of zirconium is shiny.
A shiny surface reflects 'more' light than a matt surface.
A white surface is a good radiator of heat.
Manu metals have a shiny fresh surface.
A clean surface of pure uranium has a metallic appearance, as a steel.