The discussion centers around the phenomenon of colored glass and the colors they emit when heated, specifically focusing on blue and yellow glass. Participants explore the relationship between the color of the glass and the color it glows at high temperatures, referencing both theoretical and practical aspects of this behavior.
Participants do not reach a consensus on the claims regarding the glowing colors of different glasses. There are competing views and challenges regarding the evidence and explanations provided.
Some claims rely on specific definitions of color and emission, and there are unresolved questions about the mechanisms behind the observed phenomena. The discussion also reflects varying interpretations of the relationship between color and temperature.
What evidence do you have of either of these claims?ananthu said:When a piece of red glass is heated to high temperature, it glows green. Similarly, when a green glass is heated to high temperature, it glows red.
The room-temperature color of the glass refers to the wavelengths that are reflected. As a consequence, those same wavelengths are only weakly emitted when the glass is heated, while other wavelengths are strongly emitted. As the book explains, a lack of green in an otherwise white spectrum will appear red.ananthu said:When a piece of red glass is heated to high temperature, it glows green. Similarly, when a green glass is heated to high temperature, it glows red. But How does a blue or yellow glass glow when heated? I could not find the answers for this when I browsed.
Redbelly98 said:As the book explains, a lack of green in an otherwise white spectrum will appear red.