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Microsoft is using regular quartz glass, and the company has boiled, baked, and scratched it to test resilience.

Another test used an engine with a small quartz glass window so engineers could see how the synthetic fuel interacted with the airflow in the combustion chamber.

He’s explaining the process by which data is stored: A piece of quartz glass is etched by a laser with infinitesimally small dots that make up a binary code.

For similar reasons the manipulation of quartz glass has been omitted.

There were quartz glass ports in the sidewall.