Polynomial Updated +Created
Quantum field theory lecture by Tobias Osborne (2017) / Lecture 1 Updated +Created
Course outline given:
Non-relativistic QFT is a limit of relativistic QFT, and can be used to describe for example condensed matter physics systems at very low temperature. But it is still very hard to make accurate measurements even in those experiments.
Defines "relativistic" as: "the Lagrangian is symmetric under the Poincaré group".
Mentions that "QFT is hard" because (a finite list follows???):
There are no nontrivial finite-dimensional unitary representations of the Poincaré group.
But I guess that if you fully understand what that means precisely, QTF won't be too hard for you!
Notably, this is stark contrast with rotation symmetry groups (SO(3)) which appears in space rotations present in non-relativistic quantum mechanics.
British newspaper Updated +Created
Equivalent alternatives to the Schrodinger equation Updated +Created
Finite element method Updated +Created
TODO understand, give intuition, justification of bounds and JavaScript demo.
FutureLearn Updated +Created
KIPP Updated +Created
Magic: The Gathering is too expensive Updated +Created
Ciro thinks this is idiotic, and that Wizards should sell all cards individually with unlimited supply and all with the same prices, especially online where there are no printing costs. But because Wizards made the silly promise never to reprint certain cards with the reserved list in 1994, they can't even correct this mistake legally! (TODO maybe, see further discussion at: www.mtggoldfish.com/articles/contract-from-below-promissory-estoppel-and-the-reserved-list). There is however one simple solution: create and promote a new no reserve list format, and let reserve list formats rot away:
One interesting outcome of this would be to have card cost limited formats. Penny Dreadful puts a super low limit, on individual cards, but it would be cool to have a max cost per deck version of it.
A cool thing is when they printed Garth One-Eye, which allows you to make imaginary copies of some of those restricted list cards during play. This is the type of "flirting with the rules", that Ciro Santilli admires. The introduction of online-only cards such as XXX has pushed that even further as of 2021.
This was especially insane when Ciro was young and the Internet was not very widely available in Brazil yet, and Ciro did not know how to check the values of cards on online markets, and would trade cards with older much more knowledgable teenagers, based solely on his appraisal of a card's strength! Can you imagine how many young Timmys got ripped off in this manner, trading useless one million mana spells for ultra expensive black lotuses?
There is however one good solution to Magic's insane cost: watch people who have nothing better to do in their lives play on YouTube.
And as Internet formats dominate more and more, if they have any brains at will they will migrate to a subscription model where you pay to play for a given period of time, and have immediate access to all cards. It could even be a tiered access, with older formats being more expensive (more bugs to fix on different cards), but you must get access to all cards of a format at once.
Video 1.
The Tarmogoyf Scandal by Nikachu MTG (2021)
Source.
Markdown Updated +Created
The questions are: who is this Mark, and why does he have to go down?
Niobium-tin Updated +Created
Nuclear weapons program Updated +Created
Orthonormality Updated +Created
PC-based oscilloscope Updated +Created
Division Updated +Created
List of Nobel Prizes in Physics Updated +Created
Nitrogen compound Updated +Created
Open source hardware Updated +Created

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