B Prereqs for Posting in Special & General Relativity

nearc
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do we want to consider a pre-test/training before posting?
i am far from an expert in Special and General Relativity, however, my attempts to learn from this forum are hampered by the large volume of posts involving common misconceptions and lack of understanding of the material. while the members of the forums patiently [usually] help our novice and intermediate users [like me] to better understand the material i wonder if we want to construct a more efficient approach? I've been working in a blended learning environment for the past 10 years. this is where the bulk of the instruction is an automated computer-based system but teachers follow up with small group and one-on-one instruction to check for understanding and to fill in any gaps. I've seen first hand how this is more effective than a traditional setting and makes the quality of life of for both the teachers and students better. while i despise standardized testing it does yield the highest scores in our state.

i digress; do we want to consider constructing a pre-test and training system as a prerequisite for posting in Special and General Relativity? if so it would first require permission from our overlords and take a concerted effort from our more knowledgeable members: while i don't quite fall into that last category, i do, however, have enough knowledge and background to proofread the questions and their multiple choice answers for clarity. we would also need a platform, maybe we can partner with khan academy or something similar?
 
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The main goal of PF is education. This includes to start at all possible levels. The ranking system "B","I","A" is already a precondition for readers. It is usually adjusted to the level of understanding, i.e. it is more related to answers than it is to questions. I do not think that a pre-qualification fits our mission. A bit of a problem in the relativity section is, that also laymen sometimes think they could solve what science hasn't so far, or that they fight with the basics of special relativity because it is to some extent counterintuitive.

If the selection "A" level threads isn't sufficient for your purposes, there are still many insight articles especially on relativity. E.g.

https://www.physicsforums.com/insights/speed-light-frames-reference/
https://www.physicsforums.com/insights/block-universe-refuting-common-argument/https://www.physicsforums.com/insig...elayed-choice-no-counterfactual-definiteness/
https://www.physicsforums.com/insights/how-to-study-fermi-walker-transport-in-minkowski-spacetime/https://www.physicsforums.com/insights/fermi-walker-transport-in-schwarzschild-spacetime/https://www.physicsforums.com/insights/fermi-walker-transport-in-kerr-spacetime/
https://www.physicsforums.com/insights/schwarzschild-metric-part-1-gps-satellites/https://www.physicsforums.com/insights/schwarzschild-metric-part-2-photon-sphere/https://www.physicsforums.com/insights/schwarzschild-metric-part-3-Newtonian-comparison/https://www.physicsforums.com/insights/schwarzschild-geometry-part-1/https://www.physicsforums.com/insights/precession-in-special-and-general-relativity/https://www.physicsforums.com/insights/spacetime-diagrams-light-clocks/https://www.physicsforums.com/insights/a-formal-definition-of-large-scale-isotropy/
https://www.physicsforums.com/insights/time-dilation-redshift-static-black-hole/https://www.physicsforums.com/insights/how-to-better-define-information-in-physics/https://www.physicsforums.com/insights/solving-einsteins-field-equations-in-maxima/https://www.physicsforums.com/insights/rindler-motion-in-special-relativity-hyperbolic-trajectories/https://www.physicsforums.com/insig...pecial-relativity-part-2-rindler-coordinates/
and many more. Some of the above are just the first part of a series.
 
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Does the speed of light change in a gravitational field depending on whether the direction of travel is parallel to the field, or perpendicular to the field? And is it the same in both directions at each orientation? This question could be answered experimentally to some degree of accuracy. Experiment design: Place two identical clocks A and B on the circumference of a wheel at opposite ends of the diameter of length L. The wheel is positioned upright, i.e., perpendicular to the ground...
According to the General Theory of Relativity, time does not pass on a black hole, which means that processes they don't work either. As the object becomes heavier, the speed of matter falling on it for an observer on Earth will first increase, and then slow down, due to the effect of time dilation. And then it will stop altogether. As a result, we will not get a black hole, since the critical mass will not be reached. Although the object will continue to attract matter, it will not be a...
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