Uploaded May 2022 | Updated September 2026, 3 weeks ago

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Sources:
1:01 Lamp image: Lonewolf76 at Italian Wikipedia, CC BY-SA 3.0 creativecommons.org/licenses/by-sa/3.0 via Wikimedia Commons
3:19 Galileo’s telescopes: Sailko, CC BY-SA 3.0 creativecommons.org/licenses/by-sa/3.0 via Wikimedia Commons
5:23 I, Sailko, CC BY-SA 3.0 creativecommons.org/licenses/by-sa/3.0 via Wikimedia Commons
5:28 Morris0001, CC BY-SA 3.0 creativecommons.org/licenses/by-sa/3.0 via Wikimedia Commons
5:40 No machine-readable author provided. Thalion77~commonswiki assumed (based on copyright claims)., CC BY-SA 2.5 creativecommons.org/licenses/by-sa/2.5 via Wikimedia Commons