MLA Citation: Bloomfield, Louis A. "Question 173"
How Everything Works 23 Jan 2018. 23 Jan 2018 <http://howeverythingworks.org/print1.php?QNum=173>.
173. In fast food restaurants, when they keep your hamburger warm under lights, is that heat from convection or radiation?
Radiation. Convection will take the heat up toward the ceiling rather than down toward the food. But radiation travels in straight lines, from the lamps to the burgers below them.

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