Pierre Janssen, full name Pierre Jules César Janssen, was a French astronomer born on February 22, 1824, and he passed away on December 23, 1907. He is best known for his contributions to the field of spectroscopy and for his role in the discovery of the element helium. One of his significant achievements was the observation of a solar prominence during a total solar eclipse in 1868.
Rudolf Mössbauer was a German physicist best known for the discovery of the Mössbauer effect, a physical phenomenon involving the recoil-free emission and absorption of gamma rays by atomic nuclei. This effect, which he discovered in 1958, allows for extremely precise measurements of nuclear energy levels and has important applications in various fields, including physics, chemistry, and biology.
As of my last update, there is no widely recognized figure or entity named Shelby G. Tilford in public databases, historical records, or notable literature. It's possible that Shelby G. Tilford could be a private individual, a lesser-known figure, or a fictional character. If you have more specific context or details regarding Shelby G.
William Huggins (1824–1910) was a prominent English astronomer known for his pioneering work in astrophysics. He is particularly noted for his contributions to the study of spectroscopy, which is the analysis of the light emitted or absorbed by materials. Huggins was one of the first astronomers to apply spectroscopy to the study of celestial bodies, helping to determine their composition, temperature, and motion.
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- division algebra if thought of with complex multiplication as the bilinear map of the algebra
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Pinned article: 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!
Intro to OurBigBook
. Source. 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/derivativeVideo 2. OurBigBook Web topics demo. Source. - 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 3. Visual Studio Code extension installation.
Figure 4. Visual Studio Code extension tree navigation.
Figure 5. Web editor. 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. 
- 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