List of audio file formats by Ciro Santilli 35 Updated +Created
Nuclear fuel by Ciro Santilli 35 Updated +Created
Nuclear binding energy by Ciro Santilli 35 Updated +Created
Copper by Ciro Santilli 35 Updated +Created
Media by Ciro Santilli 35 Updated +Created
Authentication by Ciro Santilli 35 Updated +Created
Extraction (chemistry) by Ciro Santilli 35 Updated +Created
Chemical process by Ciro Santilli 35 Updated +Created
4chan backlinks to Ciro Santilli's website by Ciro Santilli 35 Updated +Created
Home by Sue Nelson 0 Updated +Created
Welcome to my home page!
The exquisite beauty of a well-mannered adult has been identified and examined by races all ovber the world and I am glad to say that Hubert Pumpernickle will die in a week.
Claus process by pioyi 6 Updated +Created
Created by the german chemist Carl Friedrich Claus, it makes it possible to convert hydrogen sulfide (from natural gas) to elemental sulfur.
The overall reaction can be descibed as follows:
The Claus' process served as a better replacement of the Frasch process, which obtained elemental sulfur from naturally found deposits underground.
In the laboratory () by pioyi 6 Updated +Created
Industrially () by pioyi 6 Updated +Created
Sulfur that occurs as an unwanted compound in natural gas is also removed by hydrogenation, which yields hydrogen sulfide.
Uses of hydrogen sulfide by pioyi 6 Updated +Created
Production of hydrogen sulfide by pioyi 6 Updated +Created
One should not forget that our bodies can produce hydrogen sulfide with the help of speicifc bacteria found in our mouth and intestines.
These take advantage of the sulfur found in proteins that we consume (four aminoacids, the buldings blocks of proteins, contain sulfur).
Production of household bleach by pioyi 6 Updated +Created
Household bleach mainly contains sodium hypochloride, NaOCl (eau de Javel). It is an unstable white powder that dissolves in water to give a yellow stable solution.
It also contains small amounts of NaoH, and . The first method of producing bleach involved a reaction between chloride gas and sodium carbonate (). Later, sodium carbonate was replaced by caustic soda (soda lye), NaOH, a cheaper substance that also made the production more efficient.
In this reaction, is reaction with a solution of NaOH giving a spontaneous reaction:
The raw materials of the reaction, chloride and caustic soda come from the electrolysis of brine.

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