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Q:
What is glass, how is it made?
A:

Glass has been made by humans for about 4,500 years, and it generally consists of silica (sand), potassium or soda, lime, and occasionally some other chemicals. They are melted together and cooled at air temperature so that the material is hard, but has a smooth and flowing shape, more like a liquid. The precise recipe for glass changes from place to place — the chemistry and techniques are often closely guarded secrets.

In: Science
Answer provided by Yahooligans.com
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mumpsimus: adherence to or persistence in an erroneous use of language, memorization, practice, belief, etc., out of habit or obstinacy.

Born on this day

March 28, 2017

1660 - King George I
1868 - Maxim Gorky
1891 - Paul Whiteman
1902 - Dame Flora Robson
1919 - Tony Bartley
1921 - Sir Dirk Bogarde
1935 - Michael Parkinson
1942 - Neil Kinnock
1943 - Sir Robert Eyre
1943 - Richard Stilgoe
1948 - Matthew Corbett
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