独裁者
发表于 2025-3-21 17:18:42
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Malcontent
发表于 2025-3-21 21:15:30
Compact Minimal Surfaces in Sn,What is the mathematics needed to understand general relativity?
BLUSH
发表于 2025-3-22 03:48:06
Mathematics and Physics,What is the mathematics needed to understand general relativity?
异端
发表于 2025-3-22 06:08:53
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BUMP
发表于 2025-3-22 11:23:43
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ALT
发表于 2025-3-22 15:22:34
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ALT
发表于 2025-3-22 19:12:29
Non-Euclidean Geometry,out the geometry of the surface is contained in the expression for the distance between two nearby points in some coordinate system, called the metric. For example, the distance between two distant points can be found from the metric by determining and measuring the minimum length curve (geodesic) which connects them.
Cerebrovascular
发表于 2025-3-22 22:17:50
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否认
发表于 2025-3-23 03:17:13
Digital Project Estimation and Pricinge to some frame of reference, we define inertial frames and derive the classical formulas for changing coordinates between them, called the Galileo transformation formulas. These formulas imply that velocities add, in disagreement with the surprising experimental fact that the speed of light is the
PURG
发表于 2025-3-23 05:43:46
Note-Taking Software Before OneNote, of events as points on the plane by means of their space and time coordinates as measured in a particular inertial frame. This is akin to identifying points on the Euclidean plane with pairs of real numbers by means of their Cartesian coordinates relative to a particular system of orthogonal axes.