Topics Top articles New articles Updated articles Top users New users New discussions Top discussions New comments+ New article
Ciro Santilli really likes this genre.
Now that's sweet:With the visual tileset out of box.
Quantum Field Theory lecture notes by David Tong (2007) by Ciro Santilli 35 Updated 2025-01-22 +Created 1970-01-01
Author: David Tong.
Number of pages circa 2021: 155.
It should also be noted that those notes are still being updated circa 2020 much after original publication. But without Git to track the LaTeX, it is hard to be sure how much. We'll get there one day, one day.
Some quotes self describing the work:
- Perhaps for this reason Ciro Santilli was not able to get as much as he'd out of those notes either. This is not to say that the notes are bad, just not what Ciro needed, much like P&S:This is a very clear and comprehensive book, covering everything in this course at the right level. To a large extent, our course will follow the first section of this book.
In this course we will not discuss path integral methods, and focus instead on canonical quantization.
A follow up course in the University of Cambridge seems to be the "Advanced QFT course" (AQFT, Quantum field theory II) by David Skinner: www.damtp.cam.ac.uk/user/dbs26/AQFT.html
Made by a single dude. As SsethTzeentach puts it, this is the greatest autism project ever made.
This game is quite detailed: www.youtube.com/watch?v=w4Jmqp8a_bU
Small microscopic visible particles move randomly around in water.
If water were continuous, this shouldn't happen. Therefore this serves as one important evidence of atomic theory.
The amount it moves also quantitatively matches with the expected properties of water and the floating particles, was was settled in 1905 by Einstein at: investigations on the theory of the Brownian movement by Einstein (1905).
This suggestion that Brownian motion comes from the movement of atoms had been made much before Einstein however, and passed tortuous discussions. Subtle is the Lord by Abraham Pais (1982) page 93 explains it well. There had already been infinite discussion on possible causes of those movements besides atomic theory, and many ideas were rejected as incompatible with observations:The first suggestions of atomic theory were from the 1860s.
Further investigations eliminated such causes as temperature gradients, mechanical disturbances, capillary actions, irradiation of the liquid (as long as the resulting temperature increase can be neglected), and the presence of convection currents within the liquid.
Tiny uniform plastic beads called "microbeads" are the preferred 2019 modern method of doing this: en.wikipedia.org/wiki/Microbead
Original well known observation in 1827 by Brown, with further experiments and interpretation in 1908 by Jean Baptiste Perrin. Possible precursor observation in 1785 by Jan Ingenhousz, not sure why he wasn't credited better.
This is not bad, but some divergences to the better BBC miniseries, which presumably sticks more closely to the novel:
- in the film Jim Prideaux is captured in a cafe in Prague, in the series it's in the woods. It is therefore much more plausible that he would have been shot.
- in the film Peter Guillam is played by Benedict Cumberbatch, who feels a bit young to be Ricki Tarr's boss. Not impossible, but still.
- the series is much less chronological, and more flashback based, as new information becomes available. The film is more chronological, which makes it easier to understand, but less interesting at the same time.
- in the film they shoot the Russian girl Irina in front of Jim, in the series the fact that she was shot is only known through other sources. The film has more eye candy, which weakens it.
- Toby Esterhase is not threatened in an airfield, only in a safe ;house in London.
"WE ARE 256, WE ARE 1" is an invitation to a Discord-based puzzle game with the promise of a money prize of unspecified value in Round 10.
It is written as a short mystery story/cult invitation/tabletop RPG with some mysterious Braille Unicode art cabal symbols thrown in, nice work, e.g. the first one:
⣤⡀⠀⠀⠠⣤⠀⠀⠀⠀⣤⠀⠀⢠⡄⠀⠀⣤⠀⠀⠀⠀⣤⠄⠀⠀⢀⣤⠀
⠀⠘⢷⣄⠀⠀⠹⣧⡀⠀⠀⢸⡆⠀⢸⡇⠀⢰⡇⠀⠀⢀⣼⠏⠀⠀⣠⡾⠃⠀
⠀⠀⠀⠙⢷⣄⠀⠘⢷⡄⠀⠘⣷⠀⠘⠃⠀⣼⠇⠀⢠⡾⠃⠀⣠⡾⠋⠀⠀⠀
⠀⠻⣦⣀⠀⠻⣧⡀⠈⢿⡄⠀⢿⠄⢀⡀⠠⡿⠀⢠⡿⠁⢀⣼⠟⠀⣀⣴⠟⠀
⠀⠀⠈⠙⢶⣄⠈⠻⣦⡈⢿⡄⠈⢠⣿⣿⡄⠁⢠⡿⢁⣴⠟⠁⣠⡶⠋⠁⠀⠀
⠀⣀⣀⠀⠀⠈⠛⢦⣈⣿⣄⠃⣠⣿⣿⣿⣿⣄⠘⣠⣿⣁⡴⠛⠁⠀⠀⣀⣀⠀
⠀⠈⠙⠛⠷⢦⣤⣀⡉⠻⠋⣰⣿⡿⠿⠿⢿⣿⣆⠙⠟⢉⣀⣤⡴⠾⠛⠋⠁⠀
⠀⢶⣦⣤⣤⣤⣈⣉⣛⠃⢀⣡⡄⢀⡤⠤⠀⢠⣌⡀⠘⣛⣉⣁⣤⣤⣤⣴⡶⠀
⠀⠀⠀⠀⠀⣉⣉⡉⠁⢰⣿⣿⣇⠸⠀⠀⠀⣸⣿⣿⡆⠈⢉⣉⣉⠀⠀⠀⠀⠀
⠀⠛⠛⠉⠉⢉⠉⢁⣤⣈⠛⠻⠿⠷⣤⣤⠾⠿⠟⠛⣁⣤⡈⠉⡉⠉⠉⠛⠛⠀
⠀⣠⣤⡶⠞⠋⢠⣾⣿⣿⣿⣶⣶⣤⣤⣤⣤⣶⣶⣿⣿⣿⣷⡄⠙⠳⢶⣤⣄⠀
⠀⠉⠀⣠⠀⢠⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⡄⠀⣄⠀⠉⠀
⠀⢀⣠⡾⠋⣠⠞⠁⣰⡟⠁⢸⡏⠀⢸⡇⠀⢹⡇⠈⢻⣆⠈⠳⣄⠙⢷⣄⡀⠀
⠀⠛⠋⠀⠚⠋⠀⠐⠛⠀⠀⠚⠀⠀⠘⠃⠀⠀⠓⠀⠀⠛⠂⠀⠙⠓⠀⠙⠛⠀
The game is announced on the following inscriptions from (2023-07-18):
The prize promise is:There may also be a pay to win mechanic which is perhaps how the scam works:
Amidst the labyrinthine trials, the ultimate test lies in Round 10, where grand prize money riddles await the most skilled and dedicated participants.
In this cryptic journey, the number of 256 Ordinals held becomes a key determinant of progress. Those who hold a higher number of Ordinals, standing as sentinels of wisdom, enjoy an edge over others. They are safeguarded from regressing beyond their current round, their position secured by the strength of their holdings.However, for those who possess fewer Ordinals, a different fate may await. Purges, shrouded in mystery, can demote participants to lower rounds, challenging them to rise again through determination and resolve. The path to enlightenment demands resilience and the tenacity to overcome setbacks.
Finally further down we see some join instructions:And finally they give concrete join instructions at:Removing the spaces it is just Base64:giving:so perhaps there is a hidden message in that text to actually access the Discord?
V. Whitelist Access and Discord Roles
IX. Join the Illuminated OnesSW4gdGhlIGhhbGxvd2VkIGNoYW1iZXJzIG9mIDI1NiwgYSBzZWxlY3QgZ3JvdXAgZW1lcmdlcyBmcm9tIHRoZSBkZXB ... XBsZXMgb2YgQml0Y29pbiByZWlnbiBzdXByZW1lLg==
xsel -b | tr -d ' ' | base64 -d
In the hallowed chambers of 256, a select group emerges from the depths of knowledge and mastery. As we ascend through the challenging rounds and unravel the enigmas that lie within, a council of visionaries begins to take shape. These luminaries, the Illuminated Ones, are the chosen few who have delved deepest into the mysteries, unlocking the secrets that bind our shared destiny.To join the ranks of the Illuminated Ones is to embrace the challenge laid before us. It requires unwavering determination, relentless pursuit of knowledge, and an insatiable curiosity that drives us to unlock the hidden depths of the Watch Tower. As we decode the cryptic puzzles and navigate the labyrinthine maze, we become catalysts of change, shaping the very fabric of our collective future.Only the smartest, the most intrepid, and the boldest souls will find themselves welcomed into this secret council. They are the ones who have traversed the treacherous terrain, tested their mettle, and emerged triumphant. With each step forward, they gain insights and wisdom that have the power to reshape the very landscape of the digital realm.Curious and courageous souls are invited to join the ranks of the Illuminated Ones. Those who dare to challenge the boundaries of what is known and venture into the realm of the unknown are the ones who will find their rightful place among the visionaries and leaders of the 256 community. Together, we wield the power to shape our shared destiny, to create a future where decentralization, privacy, and the principles of Bitcoin reign supreme.
This is the collection on Magic Eden: magiceden.io/ja/ordinals/marketplace/256, which contains links:
- discord.com/invite/SxsQ4xh6P2 (invite invalid as of April 2024)
- twitter.com/WEARE256BTC (this account does not exist as of April 2024) Mentioned e.g. at: twitter.com/Dworfz/status/1684301131806015489
Pinned article: ourbigbook/introduction-to-the-ourbigbook-project
Welcome to the OurBigBook Project! Our goal is to create the perfect publishing platform for STEM subjects, and get university-level students to write the best free STEM tutorials ever.
Everyone is welcome to create an account and play with the site: ourbigbook.com/go/register. We belive that students themselves can write amazing tutorials, but teachers are welcome too. You can write about anything you want, it doesn't have to be STEM or even educational. Silly test content is very welcome and you won't be penalized in any way. Just keep it legal!
We have two killer features:
- topics: topics group articles by different users with the same title, e.g. here is the topic for the "Fundamental Theorem of Calculus" ourbigbook.com/go/topic/fundamental-theorem-of-calculusArticles of different users are sorted by upvote within each article page. This feature is a bit like:
- a Wikipedia where each user can have their own version of each article
- a Q&A website like Stack Overflow, where multiple people can give their views on a given topic, and the best ones are sorted by upvote. Except you don't need to wait for someone to ask first, and any topic goes, no matter how narrow or broad
This feature makes it possible for readers to find better explanations of any topic created by other writers. And it allows writers to create an explanation in a place that readers might actually find it. - local editing: you can store all your personal knowledge base content locally in a plaintext markup format that can be edited locally and published either:This way you can be sure that even if OurBigBook.com were to go down one day (which we have no plans to do as it is quite cheap to host!), your content will still be perfectly readable as a static site.
- to OurBigBook.com to get awesome multi-user features like topics and likes
- as HTML files to a static website, which you can host yourself for free on many external providers like GitHub Pages, and remain in full control
- Internal cross file references done right:
- Infinitely deep tables of contents:
All our software is open source and hosted at: github.com/ourbigbook/ourbigbook
Further documentation can be found at: docs.ourbigbook.com
Feel free to reach our to us for any help or suggestions: docs.ourbigbook.com/#contact