Sandbox

Safe spaces for reprap wiki pre-writes – due to the logout time there being waaaaay to short

• RepRec pick & place robots (RepRap)

Testing image layouts

several images side by side – center:

the steep direct path

the long incremental path

several images side by side – on the right:

the steep direct path

the long incremental path

info-box-template snatched from Wikidata

Wanted: Better layout for main-page. => learn from Wikidata.

• wikidata main page frame
• wikitata MP without pics
• How are those placed side by side?
• How are the images made to scale with browser-window-size?

---

27px   {{{title}}}

{{{content}}}

Template:DocumentationTemplate:Protected

Test math

$$\phi= \int_{-\pi}^{\pi}sin(x) dx$$

• Useful math
• Exotic math
• Pages containing math

For real p orbitals ℓ = 1

$$\begin{align} Y_{1,-1} & = p_y = i \sqrt{\frac{1}{2}} \left( Y_1^{- 1} + Y_1^1 \right) = \sqrt{\frac{3}{4 \pi}} \cdot \frac{y}{r} = \sqrt{\frac{3}{4 \pi}} \sin( \theta) \sin \varphi \\ Y_{1,0} & = p_z = Y_1^0 = \sqrt{\frac{3}{4 \pi}} \cdot \frac{z}{r} = \sqrt{\frac{3}{4 \pi}} \cos( \theta) \\ Y_{1,1} & = p_x = \sqrt{\frac{1}{2}} \left( Y_1^{- 1} - Y_1^1 \right) = \sqrt{\frac{3}{4 \pi}} \cdot \frac{x}{r} = \sqrt{\frac{3}{4 \pi}} \sin( \theta) \cos \varphi \end{align}$$

For real d orbitals ℓ = 2

• For page: Atomic orbitals
• Source: https://en.m.wikipedia.org/wiki/Table_of_spherical_harmonics#Real_spherical_harmonics

$$\begin{align} Y_{2,-2} & = d_{xy} = i \sqrt{\frac{1}{2}} \left( Y_2^{- 2} - Y_2^2\right) = \frac{1}{2} \sqrt{\frac{15}{\pi}} \cdot \frac{x y}{r^2} = \frac{1}{4} \sqrt{\frac{15}{\pi}} \sin^{2}\theta \sin(2\varphi) \\ Y_{2,-1} & = d_{yz} = i \sqrt{\frac{1}{2}} \left( Y_2^{- 1} + Y_2^1 \right) = \frac{1}{2} \sqrt{\frac{15}{\pi}} \cdot \frac{y \cdot z}{r^2} = \frac{1}{4} \sqrt{\frac{15}{\pi}} \sin(2 \theta) \sin \varphi \\ Y_{2,0} & = d_{z^2} = Y_2^0 = \frac{1}{4} \sqrt{\frac{5}{\pi}} \cdot \frac{3z^2 - r^2}{r^2} = \frac{1}{4} \sqrt{\frac{5}{\pi}} (3\cos^{2}\theta -1)\\ Y_{2,1} & = d_{xz} = \sqrt{\frac{1}{2}} \left( Y_2^{- 1} - Y_2^1 \right) = \frac{1}{2} \sqrt{\frac{15}{\pi}} \cdot \frac{x \cdot z}{r^2} = \frac{1}{4} \sqrt{\frac{15}{\pi}} \sin(2 \theta) \cos \varphi\\ Y_{2,2} & = d_{x^2-y^2} = \sqrt{\frac{1}{2}} \left( Y_2^{- 2} + Y_2^2 \right) = \frac{1}{4} \sqrt{\frac{15}{\pi}} \cdot \frac{x^2 - y^2 }{r^2} = \frac{1}{4} \sqrt{\frac{15}{\pi}} \sin^{2}\theta \cos(2\varphi) \end{align}$$

For New Main Page

Don't fall pray to the prime distractions.

Where we're at and where we're headed to.

Current state

Template:Cutting edge
(wiki-TODO: make cutting edge info-box with: sketch of structural DNA hinge mechanism & atom placement demo)
(wiki-TODO: add infobox with structural DNA hinge left and atom placement example right – plus contxt images?)

Far term target

A personal desktop gem-gum factory fabblet with dynamically deployed protective hood.

The personal gem gum factory is: Your personal device that can push out virtually every thing* of your daily use. (* at least every inedible thing) The personal gem gum factory makes: Your products that are as cheap as the abundant mining-free raw materials that it processes. Your products that are far superior to today's best and ridiculously expensive high tech products. Your products potentially in an environmentally friendly effluent free way (also advanced recycling is faster than producing from scratch) Graphical Infosheets: [1] (work in progress)

(wiki-TODO: Nanofactory introduction infobox: both images need to go - (not anymore?)! make new better sketch of nanofactory - maybe add censored products pic - ditch or improve on covergent assemby)

What, Why, How, When

moved to main page (removed here)

Pick your favorite concern

This does not work because of ...
Friction • Thermal motion • Thermal decay at room temperature (Thermodynamics) • Fat fingers • Sticky fingers • Chicken egg problem • Nature does it differently • Quantum mechanics

For a new orientation page

Moved to: Tour by map

Misc

• Miscellaneous
• Pages with math

Refeencetests

References explained on the mediawiki wiki.

Referring to the same reference with its name:
Creating a reference plus it's name:
See: This works in reverse too.

PatreonBanner Template test

Support this wiki via Patreon. 🙏 Pages with recent activity documented on page: Logs. For other possible ways to support see page: Support

Embeddable button: (offered here)
<a href="https://www.patreon.com/bePatron?u=3816093" data-patreon-widget-type="become-patron-button">Become a Patron!</a><script async src="https://c6.patreon.com/becomePatronButton.bundle.js"></script>