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hobscoop

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hobscoop
·5 か月前·議論
Do you have the manual? It might be possible to configure a non-beeping mode. (I recently learned this was the case with my Panasonic model, to great delight.)
hobscoop
·昨年·議論
This cannot work: the power balance doesn't close for a 25 MWe tokamak. Otherwise people would have made plans to build one already. Tokamaks want to be big for physics reasons, way before economics reasons. This is part of why DEMO is so big. If ARC could be any smaller it would be.
hobscoop
·2 年前·議論
Rubi is great. When I'm stuck on an integral in Mathematica with the builtin Integrate, I load up Rubi and sometimes it can find a solution.
hobscoop
·2 年前·議論
Are they able to adjust the color and brightness simultaneously? Or would brightness be controlled with PWM?
hobscoop
·2 年前·議論
Strong echoes of the Onion's reporting on Dr. Lester Mordock's giant crabs: https://www.youtube.com/watch?v=-Uq9pp586AE
hobscoop
·2 年前·議論
This would eliminate the failure mode of my grayscale attempts. I would appreciate knowing the configuration steps.
hobscoop
·2 年前·議論
Plasma physicist here. While this is an idea worthy of study, the answer to the (spaceweatherarchive.com) title question is "no". The researcher's article makes simple errors in what they call " undergraduate physics" (electricity and magnetism), in basic plasma physics, and in basic algebra.

As one straightforward example, their estimate of the (change in) Debye length ignores that their equations (2 and 3) are in terms of the square of the Debye length, so the purported change should be only sqrt as large.

As another example, it's not clear why the author focuses on aluminium in the upper atmosphere, or worries about small particles of aluminium shielding the earth's magnetic field from space. While a conductive shell can shield a changing magnetic field, it needs to have long-range conductive paths. A mesh has this property, but a mesh is not the same as a suspended dispersed powder, even if the individual powder particles are conductive on the nano-scale.