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Explain how an ordinary glass fever thermometer is designed?
An ordinary glass fever thermometer is typically made of a sealed glass tube filled with mercury or dyed alcohol. It has a calibrated scale along the length of the tube to measure temperature. When the thermometer is placed in contact with a warm object, the temperature causes the liquid inside to expand and rise up the scale, indicating the temperature value.
What is Main ingredient in ordinary glass?
Silica.
Why is boric oxide added in ordinary glass?
Boric oxide is added to ordinary glass to increase its thermal resistance and chemical durability. It also helps to lower the melting temperature of the glass batch, making the manufacturing process more energy-efficient.
Why is boric oxide added to ordinary glass?
Boric oxide is added to ordinary glass to increase its resistance to heat and chemical corrosion. It also helps reduce the coefficient of thermal expansion, making the glass less likely to break from sudden temperature changes.
Why boric oxide added to ordinary glass?
Boric oxide is added to ordinary glass to increase its thermal resistance and chemical durability. It helps reduce the coefficient of thermal expansion, which makes the glass less likely to shatter when exposed to rapid temperature changes. Boric oxide also improves the glass's resistance to chemicals and weathering.
What is ordinary glass?
normal float glass screen is made of a number of glass sheets which can be standard.
From ordinary glass to bullet resistant glass?
A bullet resistant glass screen is made of a number of glass sheets which can be standard thicknesses window glass, separated by air gaps. Security films, preferably made of polyester, are provided on the front and rear surfaces of the glass sheets. A pressure sensitive adhesive can be used to adhere the security films to the glass sheets. The resistance off the screen to penetration by a bullet is increased by increasing the thickness of the air gaps. There is also a metal net on both sides of each glass pane to stop it shattering if a bullet hits it.
What the volume of any liquid that can fill half of an ordinary glass?
the volume of any liquid that can fill half of an ordinary glass
What is the difference between ordinary glass and quartz glass?
Quartz glass is made from pure silicon dioxide and has a higher melting point, better transparency, and superior thermal and chemical resistance compared to ordinary glass. This makes quartz glass more suitable for high-temperature and high-pressure applications where regular glass might deform or break down.
What is ordinary formula of glass?
Na2O.CaO.6SiO2
What is the improvement of ordinary glass to bullet- resistant glass?
Different manufacturers make different variations of bullet-resistant glass, but it is basically made by layering a polycarbonate material between pieces of ordinary glass in a process called lamination. More exotic versions now laminate various types of polycarbonate material together, or even use aluminium oxynitride ("transparent aluminium) or other transparent ceramics.
Is glass an element or a solid?
The two categories are not mutually exclusive. A glass is, by definition, an amorphous solid. It may or may not also be an element, depending on exactly what it's made of. Ordinary window or drinking-type glass is not an element but a compound.
Explain how an ordinary glass fever thermometer is designed?
An ordinary glass fever thermometer is typically made of a sealed glass tube filled with mercury or dyed alcohol. It has a calibrated scale along the length of the tube to measure temperature. When the thermometer is placed in contact with a warm object, the temperature causes the liquid inside to expand and rise up the scale, indicating the temperature value.
What is Main ingredient in ordinary glass?
Silica.
What distinguishes lead crystal barware from ordinary glass?
Crystal glass is made differently with a different chemical composition (lead oxide is added). It is then cut either by hand or by machine to create facets and/or designs.
Why is boric oxide added in ordinary glass?
Boric oxide is added to ordinary glass to increase its thermal resistance and chemical durability. It also helps to lower the melting temperature of the glass batch, making the manufacturing process more energy-efficient.
Why will a milk bottle crack if you pour hot water into it?
The milk bottle is made of ordinary glass with a relatively high coefficient of thermal expansion. Glass has poor thermal conductivity, so the inside of the bottle will be hot and outside cold. This temperature gradient will cause a stress in the glass and if the glass has small imperfections or flaws in it the glass will break. That is why coffee pots are often made of low expansion glass, like Pyrex, to prevent high stress.
