Direct and indirect band gaps by Ciro Santilli 35 Updated +Created
Edd Sorenson by Ciro Santilli 35 Updated +Created
Edd Sorenson is the greatest cave body recovery diver ever, performing incredible stunts of endurance and bravery in his many body recoveries.
He even saved a few cave divers alive, which is extremely rare as almost all incidents lead to deaths.
https://web.archive.org/web/20220112174926im_/https://tekdiveusa.com/wp-content/uploads/2019/12/72474091_2829836630362705_3372956156782706688_n-500x500.jpg
Besides that, he was also one of the early proponents of sidemount diving, a method of diving that allows divers to enter through smaller restrictions than the traditional back mounted diving. The method was initially considered dangerous, but after technical developments which Sorenson contributed to became the dominant form of cave diving.
Sorenson also made technical and educational contributions to civilian rebreather diving, which he mastered and often used in his many body recovery missions, as the method allows him to stay underwater for longer periods of time.
On top of all that, he's a great storyteller, which together with his physique and demeanor helps to cement his fame.
His name is Danish: en.wikipedia.org/wiki/Sørensen He looks incredibly military, but apparently isn't: youtu.be/K7m03k1k-Bk?t=171 He had an excavation business in Portland, Oregon, and wanted FIRE movement to Florida. He got a bit hurt by by the dot-com crash, but still managed to move after liquidating all assets.
This is another perfect example of how shitty our world is. The dude wasted his life until he was 40, and then only when he started doing what he really loved did he become mega famous and succesful. Video "What Would You Do If Money Were No Object by Alan Watts" comes to mind strongly yet again... After the move he relocated to the Jackson Blue Spring area.
Video 1.
TechDiver Chronicles, episode 2 by Dan Wright
. Source. 2024.
Electronic symbol by Ciro Santilli 35 Updated +Created
Cave diver by Ciro Santilli 35 Updated +Created
Rebreather diving by Ciro Santilli 35 Updated +Created
Video 1.
Can we survive Edd Sorenson's Rebreather Class? by BlueWorldTV
. Source. This video gives a good overview of what a rebreather looks like.
Sidemount diving by Ciro Santilli 35 Updated +Created
Cave diving by Ciro Santilli 35 Updated +Created
MyDream Interactive by Ciro Santilli 35 Updated +Created
Allison Huynh's zombie gaming company.
Their flagship seems to have been this game: "MyDream" store.steampowered.com/app/348860/MyDream/, a Roblox-like. This is seen in 2015 at on web archive.
They had a child educational focus and also made some attempts in cryptocurrency.
Suitable Technologies by Ciro Santilli 35 Updated +Created
Scott Hassan's shitty telepresence robot startup. Looking at the demos it is so painfully obvious why they failed, that feeble tall screen on wheels. But hindsight is 20/20... It is almost as bad as OurBigBook.
The most notable usage of the product is Snowden Snowbot, which is sad, the product name seems to have been "Beam". Who would use that if not for theatrics with an exilee when everyone already has a screen in front of their face all the time?[ref]
At least this phase produced some of the only videos of Hassan in existence such as:He's got a perfect american accent, so likely not a first generation immigrant.
Optical storage by Ciro Santilli 35 Updated +Created
Laser pointer by Ciro Santilli 35 Updated +Created
Laser diode by Ciro Santilli 35 Updated +Created
This is by far the most important type of laser commercially, as it can be made relatively cheaply, and it doesn't break easily as it ends up being a single crystal.
Compare them for example to the earlier gas lasers.
This is the type of laser that you would get in a simple laser pointer.
But the real mega aplications are:
Gas laser by Ciro Santilli 35 Updated +Created
Fiber laser by Ciro Santilli 35 Updated +Created
Barack Obama by Ciro Santilli 35 Updated +Created
XPRIZE by Ciro Santilli 35 Updated +Created
Direct energy conversion by Ciro Santilli 35 Updated +Created
Home by Paul Kuenstler 0 Updated +Created
Welcome to my home page!
Shri Rudram by Ciro Santilli 35 Updated +Created

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:
  1. 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-calculus
    Articles 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
  2. 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.
    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.
  3. https://raw.githubusercontent.com/ourbigbook/ourbigbook-media/master/feature/x/hilbert-space-arrow.png
  4. Infinitely deep tables of contents:
    Figure 6.
    Dynamic article tree with infinitely deep table of contents
    .
    Descendant 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