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An old remedy for a pair of nested drinking glasses that stick together is to run water at different temperatures into the inner glass and over the surface of the outer glass which water will be hot?
The difference in temperature causes the inner glass to expand while the outer glass remains the same size, breaking the vacuum seal between them and allowing them to separate easily. It's important to be cautious with the hot water to avoid accidentally shattering the glass if it is too cold or thin.
Why does a glass tumbler crack when you suddenly pour hot tea into it?
When we pour very hot water into an empty glass, the inner surface of the glass will expand as matter expands when heated. But the inner surface of the glass will expand more than the outer surface of the glass because more heat is applied to the inner surface of the glass.
Was JFK put in a glass coffin for display after his death?
no. But the mahogany casket he was buried in might have had an inner bronze liner with a glass top.
Is Laminated glass tougened glass produced in the middle east?
Laminated Glass is produced at most glass manufacturing plants (wholesale Suppliers) which will supply your local glass shop. It's producton process is simply joining (laminating) two pcs. of glass with a layer of poly vynal byutine to form one single pc. of glass. Rated as safety glass, laminated glass can be broken on on side, and remain fully intact on the other ie: your car windshield. Able to withstand even larger impacts which will break both sides of the glass yet retain most of it's form thanks to the inner layer of vynal. Produced in the Middle East, Yes probably, safe to say World Wide. Hope this helps.
Why is sliver used in the inner part of flasks?
A silver coating on the inside of a flask's inner glass container is there to reflect heat back into the liquid.
Why glass lined reactor in blue colour?
glass inner colur is blue because silicon gel is used for that one
Is optical fiber ihollow or not?
The main part of an optical fiber is a glass fiber (NOT hollow) within another glass fiber of another type of glass. Both types of glass have a different index of refraction; the signal travels through the inner glass fiber.
What are vacuums made of?
The outer envelope is usually glass. The inner parts are various metals and plastics.
If you want to melt a glass rod faster which of the region of the burner will you use?
You should use the inner blue cone region of the burner flame to melt the glass rod faster. This region of the flame is the hottest and most intense, providing the necessary heat to quickly melt the glass.
What is rear window defogger?
This is normally a resistive heating fixed to the inner surface of the glass of the rear screen.
Why ice boxes have inner linings of glass wool?
It traps air, which is a very good insulator of heat.
In fiber optic cables what reflects the light back into the core?
This is done by total internal reflection. It is the result of the fact that the inner glass and the outer glass have different indices of refraction (the outside glass has a lower index of refraction).
