msslx
Joined 9 years ago
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Comment · 5 years ago
Comment · 8 years ago
Good question - I worked at the ASDEX Upgrade (AUG), also operated by the IPP but a tokamak instead of a stellarator: At AUG similar images and videos [0] are recorded by IR cameras. These cameras require strong cooling and a magnetic / electric shielding as described in [1]. Per plasma discharge (~10s) around ~8GB of video data is recorded. There are also fast frame cameras for dust tracking [2] and similar things. I assume the same techniques are applied at Wendelstein.
[0] https://www-ncbi-nlm-nih-gov.eaccess.ub.tum.de/pubmed/266281... [1] https://www.youtube.com/watch?v=QCK51vqWunU [2] http://iopscience.iop.org/article/10.1088/1741-4326/aa4e56
Comment · 8 years ago
The 3+1 dimensional spacetime is not embedded in a higher dimensional space [1]. If there are additional dimensions, they have to be "rolled up" and tiny.
[1] http://iopscience.iop.org/article/10.1088/1475-7516/2018/07/...
Comment · 8 years ago
At least locally, there are no hidden variables (e.g., in higher dimensional space). You might have a look at Bell's work on hidden-variable theory: https://en.wikipedia.org/wiki/Hidden-variable_theory#Bell%27...
[1] https://vitalik.ca/general/2021/01/11/recovery.html