Timeline for Fresnel lenses for a makeshift Galilei telescope?
Current License: CC BY-SA 4.0
2 events
when toggle format | what | by | license | comment | |
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Jan 16, 2021 at 0:44 | history | edited | uhoh | CC BY-SA 4.0 |
added 703 characters in body
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Jan 16, 2021 at 0:35 | history | answered | uhoh | CC BY-SA 4.0 |