Comment on the subtle change in the composition of molten glass that increases its stiffness to facilitate the process of blowing.
Understand the Problem
The question is asking for a commentary or analysis on the specific subtle change in the composition of glass that increases its stiffness, which is relevant to the process of blowing glass.
Answer
Increasing silica or adding alumina stiffens molten glass, aiding blowing.
A subtle change in the composition of molten glass, such as increasing the silica content or adding other stiffening agents like alumina, increases its viscosity. This makes the glass more manageable during the blowing process by providing increased stiffness.
Answer for screen readers
A subtle change in the composition of molten glass, such as increasing the silica content or adding other stiffening agents like alumina, increases its viscosity. This makes the glass more manageable during the blowing process by providing increased stiffness.
More Information
Changing the composition of glass by slightly altering components like silica or alumina helps improve the control during the blowing process by adding stiffness to the molten glass.
Tips
A common mistake is to think any change in composition will suffice. Specific components such as silica need to be adjusted carefully.
Sources
- Glassblowing - Wikipedia - en.wikipedia.org
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