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Entrepreneurship in the United Kingdom by 
Ciro Santilli 35 Updated 2025-01-22 +Created 1970-01-01
Ciro Santilli 35 Updated 2025-01-22 +Created 1970-01-01Startup lists:
Deep tech (have labs) unicorns:
- Oxford Nanopore Technologies
- Graphcore
- CMR Surgical
- Britishvolt
- Touchlight Genetics
Almost deep tech but possibly without labs:
- Exscientia
Lecture notes found by Googling "quantum field theory pdf":
- www.ppd.stfc.ac.uk/Pages/Dasgupta_08_Intro_to_QFT.pdf "An Introduction to Quantum Field Theory" by Mrinal Dasgupta from the University of Manchester (2008). 48 pages.
- www.thphys.uni-heidelberg.de/~weigand/QFT2-14/SkriptQFT2.pdf "Quantum Field Theory I + II" by Timo Weigand from the Heidelberg University. Unknown year, references up to 2008.
- edu.itp.phys.ethz.ch/hs12/qft1/ Quantum Field Theory 1 by Niklas Beisert
By default, we will use the time negative representation unless stated otherwise:but another equivalent one is to use a time positive representation:The matrix is typically denoted by the Greek letter eta.
This shows that viewing electromagnetism as gauge theory does have experimentally observable consequences. TODO understand what that means.
In more understandable terms, it shows that the magnetic vector potential matters where the magnetic field is 0.
The Quantum Experiment that ALMOST broke Locality by The Science Asylum (2019)
Source. Second quantization also appears to be useful not only for relativistic quantum mechanics, but also for condensed matter physics. The reason is that the basis idea is to use the number occupation basis. This basis is:
- convenient for quantum field theory because of particle creation and annihilation changes the number of particles all the time
- convenient for condensed matter physics because there you have a gazillion particles occupying entire energy bands
Bibliography:
- www.youtube.com/watch?v=MVqOfEYzwFY "How to Visualize Quantum Field Theory" by ZAP Physics (2020). Has 1D simulations on a circle. Starts towards the right direction, but is a bit lacking unfortunately, could go deeper.
The United Kingdom is a great place to cycle in general as there's plenty of small country roads and interesting new small towns to discover, perhaps much like the rest of Europe, as opposed to the United States, which likely has some huge infinitely long straight roads with a lot of nothing in between.
Of particular interest is the large amount of airfields and small air raid shelters in the fields, an ominous reminder of world war 2. The airfields are in various states, from functional military fields, many converted to civilian usage, some have barely any tarmac left but still see usage. And some were just completely abandoned and decayed and became recreation grounds and farms. The UK is therefore also a great place to be if you want to learn to fly as a hobby!
Good starting point:
Next, you want to decide about nice destinations to reach/go through, and these are good ideas to look into:
- Area of Outstanding Natural Beauty
- National Trust
- Royal Society for the Protection of Birds (RSPB)
This section is more precisely about classical mechanics.
Highlighted at the Origins of Precision by Machine Thinking (2017).
If you ask for something, and they don't want to do it for whatever reason, they won't say no. They will say "I could do it, sure, no problem" and just never do it, nor explain why they don't want to do it!
And then if you don't understand that this actually meant "no" and push things further, they might eventually say "no", but they might become offended that you didn't understand them at first!
Please just say at least "yes" or "no". And if you're feelig specially nice, say "why no" which helps a lot the asker sometimes, though that's optional since people are entitled to their privacy. Just don't waste our poor foreigners' time with "bhlarmeh"!
Perhaps East Asia is a similar and more severe case of the same problem. But at least in their case it is so obvious that you already expect it.
The polar opposite apparently beign Germen and the like.
Why we can't find more bibliography on this?
- www.reddit.com/r/AskUK/comments/ywt98p/why_are_british_people_so_indirect/ "Why are British people so indirect?". Now deleted body with some fixes, bullshit deletion procedure they have:The best comment:I've worked with people from all over the globe, but its when i work Work with British people it's always frustrating.From conversations to communicating what they would like me to do for them in notes. Never direct. Confusing and unclear. When I ask politely what they are asking me to do I get some patronising passive aggressive BS.Most times I don't even have to ask questions or clear things up. I try to make sense of everything, but sometimes I have to ask. In my job its important that I have the exact facts. I need 100% clarity from colleagues, so decisions I make don't come back to bite me on the ass. My clients don't have time for British behaviour like that. I don't have time for that.Why are Brits do indirect and passive aggressive in the workplace?
Brits do tend to be a bit passive aggressive, but we're also generally quite logical and reasonable creatures. Be direct and just say 'look, cut the bullshit, tell me your honest opinion, I won't take offense' and they should open up more.
Nice try Johnson, I'm not falling for that trap. - www.facebook.com/soverybritish/posts/things-that-mean-no-yeah-could-do-im-easy-really-well-yes-and-no-well-see-maybe-/1497343080313575/
Things that mean "no" by "Very British Problems":- Yeah, could do
- I'm easy really
- Well, yes and no
- We'll see
- Maybe
- If that's what you fancy
- I'll see how I feel
- letstalk.voiceprint.global/talking-with-the-brits-the-problem-with-indirectness/ "Talking with the Brits - the problem with indirectness"
How I Faked Being American interview with Jack Barsky
. Source. The former East German spy undercover in the USA says:I had learned to speak English and write it as well as anybody, but I hadn't become an American culturally.My behavior was still very German.Having now learned the difference between the German style and the American style, I have been trying to adjust and soften the way I'm approaching things.Germans are in your face, they will tell you what they think even if you don't ask for it, and they will criticize you at any chance they get.And that was me.And there's still a residue of that left.Americans will be a little more passive, sometimes passive aggressive, and they wrap everything, every piece of bad news, in some kind of a velvet cloth so it doesn't hurt that much.
Science and Technology Facilities Council by Ciro Santilli 35 Updated 2025-01-22 +Created 1970-01-01
Ciro Santilli 35 Updated 2025-01-22 +Created 1970-01-01 UK National Quantum Technologies Programme by Ciro Santilli 35 Updated 2025-01-22 +Created 1970-01-01
Ciro Santilli 35 Updated 2025-01-22 +Created 1970-01-01As of 2018-12, I believe that I might have fried the UART on this board when I burnt my last UART to USB converter by connecting ground to 5V.
Linux kernel logs don't show, but do show with the exact same components on the Pi 3 (SD card with
enable_uart=1 + image Raspbian Lite 2018-11-03 and UART cables).Serial from
cat /proc/cpuinfo: 00000000a50c1f69Datasheets: Raspberry Pi 2.
The P51 is a bit too heavy, and the battery could be better!
- Dell XPS 15 www.dell.com/en-uk/shop/laptops/12th-gen-intel/spd/xps-15-9520-laptop
- CPU: Intel Core i7-12700H (12th gen)
- Graphics: Nvidia GeForce RTX 3050 Ti
- RAM: 16GB DDR5. Can be upgrated to 32 or 64.
- Display: 15.6-inch 3.5K (3,456 x 2,160), 60Hz
- Storage: 1TB PCIe NVMe M.2 SSD. Can be upgraded to 2TB or 4TB.
- Weight: 1.96 kg
- Price in UK: £1,948.99
- Ubuntu: no
- Tom's guide battery life: 10-hours (web browsing) www.tomsguide.com/reviews/dell-xps-15-oled-2022-review-a-great-macbook-pro-alternative
- Dell XPS 13 www.dell.com/en-uk/shop/laptops/xps-13/spd/xps-13-9315-laptop
- CPU: Intel Core i5-1230U (12th gen)
- Graphics: integrated
- RAM: 8GB DDR5. Can be upgrated to 16 or 32
- Display: 13.4-inch
- Storage: 512 GB. Can be upgraded to 1 TB
- Weight: 1.17 kg
- Price in UK: £913.00
- Ubuntu: yes
- Tom's guide Battery life: 13 hours and 11 minutes www.tomsguide.com/reviews/dell-xps-13-2022
- Dell XPS 13 plus
- www.digitaltrends.com/computing/dell-xps-13-plus-vs-xps-13/
- Tom's guide battery life: 7 hours and 34 minutes
- ThinkPad X1 Carbon Gen 11 (14" Intel) www.lenovo.com/gb/en/p/laptops/thinkpad/thinkpadx1/thinkpad-x1-carbon-gen-11-(14-inch-intel)/len101t0049
- Storage: 256 GB SSD. Can be upgraded to 1 TB
- RAM: 16 GB (soldered)
- Graphics: integrated
- Price in UK: £2,020.00
- Ubuntu: no
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.
Figure 1. Screenshot of the "Derivative" topic page. View it live at: ourbigbook.com/go/topic/derivative - 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
Figure 2. You can publish local OurBigBook lightweight markup files to either OurBigBook.com or as a static website.
Figure 3. Visual Studio Code extension installation.
Figure 4. Visual Studio Code extension tree navigation.
Figure 5. . You can also edit articles on the Web editor without installing anything locally. Video 3. Edit locally and publish demo. Source. This shows editing OurBigBook Markup and publishing it using the Visual Studio Code extension.Video 4. OurBigBook Visual Studio Code extension editing and navigation demo. Source. - Internal cross file references done right:
- Infinitely deep tables of contents:
Figure 6. Dynamic article tree with infinitely deep table of contents.Live URL: ourbigbook.com/cirosantilli/chordateDescendant pages can also show up as toplevel e.g.: ourbigbook.com/cirosantilli/chordate-subclade
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