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A comment on Why does aluminum foil have one shiny side and one with a matte finish?. Parent comment

Re:Why does aluminum foil have one shiny side and one with a... by bmicraft on Monday February 16, 2026 @05:18AM (#47033262)
Is it? I can see the broiler glowing, so at least a decent chunk is close to visible light.
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Re:Why does aluminum foil have one shiny side and one with a... by cwillu on Monday February 16, 2026 @05:54AM (#47033537)
Look up the emission spectrum for a body at the temperature of a typical oven element: yes, it starts emitting some light that is visible, but the bulk of the energy is still in the IR band.
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Re:Why does aluminum foil have one shiny side and one with a... by cwillu on Monday February 16, 2026 @06:24PM (#47041711)
An alternate intuition pump, at least if you're old enough to remember incandescent bulbs: consider how bright a 1000-watt bulb is, compared to how bright (in the visible spectrum) the 2-3000 watt oven element gets.
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