6.58.2 Greatest hits from previous weeks

6.58.2.1 Nice scientific pictures show off
6.58.2.2 How to add a forced line break inside a table cell
6.58.2.3 Putting two images beside each other
6.58.2.4 Using the \tab Command
6.58.2.5 Superscript outside math mode
6.58.2.6 What is the "correct" way of embedding text into math mode?
6.58.2.7 Making the bibliography appear in the table of contents
6.58.2.1 Nice scientific pictures show off

https://tex.stackexchange.com/landing/r/digest?cta=question&id=158668

Task 
Show off your best scientific illustration ! 
The main purpose of this question is to share beautiful scientific pictures, preferably with an educational aspect. 
Content 
Your post must ... 
[diagrams] [3d] [technical-drawing] [fun] [big-list]
 
asked by Thomas https://tex.stackexchange.com/landing/r/digest?cta=user&id=42660 520 votes
answered by Charles Staats https://tex.stackexchange.com/landing/r/digest?cta=user&id=484 313 votes
6.58.2.2 How to add a forced line break inside a table cell

https://tex.stackexchange.com/landing/r/digest?cta=question&id=2441

I have some text in a table and I want to add a forced line break. I want to insert a forced line break without having to specify the column width, i.e. something like the following: 
\begin{tabular}{|... 
[tables] [line-breaking]
 
asked by Denilson SA~\[DownExclamation] Maia https://tex.stackexchange.com/landing/r/digest?cta=user&id=375 698 votes
answered by Bernard https://tex.stackexchange.com/landing/r/digest?cta=user&id=38908 450 votes
6.58.2.3 Putting two images beside each other

https://tex.stackexchange.com/landing/r/digest?cta=question&id=148438

If I want to put two images beside each other, what should I do? I have inserted a figure. But, rather than having the next figure on a new line, I want it to be beside the already inserted figure. ... 
[graphics] [floats] [positioning]
 
asked by Simplicity https://tex.stackexchange.com/landing/r/digest?cta=user&id=28871 59 votes
answered by Masroor https://tex.stackexchange.com/landing/r/digest?cta=user&id=14103 146 votes
6.58.2.4 Using the \tab Command

https://tex.stackexchange.com/landing/r/digest?cta=question&id=198432

I have seen several cases of people using the \tab command to insert a specific amount of space between objects (as opposed to the \hfill command which uses any remaining space).  However, I have ... 
[spacing]
 
asked by Mathematician https://tex.stackexchange.com/landing/r/digest?cta=user&id=49199 63 votes
answered by Mathematician https://tex.stackexchange.com/landing/r/digest?cta=user&id=49199 72 votes
6.58.2.5 Superscript outside math mode

https://tex.stackexchange.com/landing/r/digest?cta=question&id=47324

What is the easiest way to superscript text outside of math mode? 
For example, let's say I want to write the $n^{th}$ element, but without the math mode's automatic italicization of the th.  And what ... 
[superscripts]
 
asked by jamaicanworm https://tex.stackexchange.com/landing/r/digest?cta=user&id=9757 426 votes
answered by Werner https://tex.stackexchange.com/landing/r/digest?cta=user&id=5764 627 votes
6.58.2.6 What is the "correct" way of embedding text into math mode?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=3415

Lets say I have something like: 
\[ Let x = number of cats \] 
(This is a contrived example, but pretend we are actually inside a long align environment block...) "Let" and "number of cats" need to ... 
[math-mode]
 
asked by Billy ONeal https://tex.stackexchange.com/landing/r/digest?cta=user&id=192 233 votes
6.58.2.7 Making the bibliography appear in the table of contents

https://tex.stackexchange.com/landing/r/digest?cta=question&id=8458

I need to make my (BibTeX) references section appear in the table of contents of my LaTeX document (documentclass: article), with section numbering too. 
My approach until now has been making a new ... 
[sectioning] [table-of-contents] [bibliographies]
 
asked by Genba https://tex.stackexchange.com/landing/r/digest?cta=user&id=2311 189 votes
answered by lockstep https://tex.stackexchange.com/landing/r/digest?cta=user&id=510 141 votes