Unbreakable_glass

Unbreakable glass

Unbreakable glass

Glass or glass substitute

Unbreakable glass is glass, or glass substitute, which does not display the normal fragility of glass – in general the term is not used to refer to something that is absolutely unbreakable.

In history

According to Petronius (c. 27 AD – c. 66 AD) in his work Satyricon, an inventor brought a drinking bowl to the Roman emperor Tiberius made of vitrum flexile - translated as either flexible or unbreakable glass - which did not shatter but merely dented. Tiberius asked if anyone else was aware of the invention. When the inventor replied that he was the only person who knew the secret, Tiberius had him killed. The motivation, according to Reynolds, was to protect the livelihood of the glassmakers.[1]

See also

References

  1. [1]
    Terry S. Reynolds (31 July 2002). Stronger Than a Hundred Men: A History of the Vertical Water Wheel. JHU Press. p. 36. ISBN 978-0-8018-7248-8.


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