burning glass: Revision history

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24 August 2022

23 August 2022

  • curprev 21:3021:30, 23 August 20222601:2c3:4201:d70::f95c talk 225 bytes +225 Created page with "==English== ===Noun=== {{en-noun}} # A burning glass is a large convex lens or concave mirror that can concentrate the sun's rays onto a small area, heating up the area and thus resulting in ignition of the exposed surface."