The discussion centers on whether a 3D universe shares the same geometry as a 4D universe. One participant dismisses the relevance of the question but acknowledges a previous answer affirming a similarity. The conversation highlights that in different geometries, straight lines do not exist, as all lines become curved. This suggests that the geometric properties of higher dimensions can differ significantly from those in lower dimensions. Ultimately, the relationship between dimensions and geometry remains a complex and intriguing topic.
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Gold Barz
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Would a 3 spatial dimension universe have the same geometry as a 4 spatial dimension universe?
Partial solar eclipse from Twizel, South Isl., New Zealand ...
almost missed it due to cloud, didnt see max at 0710 NZST as it went back into cloud.
20250922, 0701NZST
Canon 6D II 70-200mm @200mm,
F4, 100th sec, 1600ISO
Makeshift solar filter made out of solar eclipse sunglasses
3I/ATLAS, also known as C/2025 N1 (ATLAS) and formerly designated as A11pl3Z, is an iinterstellar comet. It was discovered by the Asteroid Terrestrial-impact Last Alert System (ATLAS) station at Río Hurtado, Chile on 1 July 2025.
Note: it was mentioned (as A11pl3Z) by DaveE in a new member's introductory thread.
https://www.physicsforums.com/threads/brian-cox-lead-me-here.1081670/post-7274146
https://earthsky.org/space/new-interstellar-object-candidate-heading-toward-the-sun-a11pl3z/
One...
are in a beautiful arrangement tonight as I have just observed on the walk back from the pub.
Does anyone have access to an image without city light pollution and better exposure control than my phone?
Edit: snapshot attached