User:Electron9/Demo

Bold demo.

Help:Wiki markup

Manual of Style (mathematics)

List of ISO 639-1 codes

Special characters
&Oslash; &szlig; &para; x&#8329; x&#8313; &alpha; &beta; &lambda; &pi; &omega; &eta;&Sigma; &Omega; &plusmn; &infin; &prop; &ne; &le; &ge; &permil; &oslash; &rArr; &lArr; &hArr; &rarr; &larr; &harr;

Picture


Picture tutorial



Wiktionary
Wiktionary link in text "grove".

Text
"Because these valves do not start opening until the system reaches 90% of full pressure, the efficiency of the system is protected.."

Original reference:

Reused reference:

Nowrap the shit that will keep your lines straight for a very long long line of text

Text color

 * Cheatsheet, Help:Wiki markup

Red block or Red text, or combined Red with blue text

Math

 * The notation accepted by texvc, (wikimedia.org/wiki/Help:Formula)
 * Help:Formula

Going from 56.234133 µV to dBµV:

G_\mathrm{dB} = 20 \log_{10} \bigg(\frac{56.234133~\mu\,\!V \times 10^{6}}{1~V}\bigg) = 35~\mathrm{dB} \, $$

Going from 35 dBµV to voltage:

G = 10^{-6} \times 10^\frac{35~\mathrm{dB}}{20} = 56.234133...~\mu\,\!V \approx 56~\mu\,\!V \, $$

Annotation
This text need some further explanation

Important note

Table
Image gallery:

Collapsed

 * {| class="toccolours collapsible collapsed" width="80%" style="text-align:left"

!Click "show" to see a derivation of this law:
 * Curie's Law can be derived by considering a substance with noninteracting magnetic moments with angular momentum J.  If orbital contributions to the magnetic moment are negligible (a common case), then in what follows J = S.  If we apply a magnetic field along what we choose to call the z-axis, the energy levels of each paramagnetic center will experience Zeeman splitting of its energy levels, each with a z-component labeled by MJ (or just  MS for the spin-only magnetic case).  Applying semiclassical Boltzmann statistics, the molar magnetization of such a substance is
 * Curie's Law can be derived by considering a substance with noninteracting magnetic moments with angular momentum J.  If orbital contributions to the magnetic moment are negligible (a common case), then in what follows J = S.  If we apply a magnetic field along what we choose to call the z-axis, the energy levels of each paramagnetic center will experience Zeeman splitting of its energy levels, each with a z-component labeled by MJ (or just  MS for the spin-only magnetic case).  Applying semiclassical Boltzmann statistics, the molar magnetization of such a substance is

$$N_{A}\bar{m}=\frac{N_{A}\sum\limits_{M_{J}=-J}^{J}{\mu _{M_{J}}e^{{-E_{M_{J}}}/{k_{B}T}\;}}}{\sum\limits_{M_{J}=-J}^{J}{e^{{-E_{M_{J}}}/{k_{B}T}\;}}}=\frac{N_{A}\sum\limits_{M_{J}=-J}^{J}{M_{J}g_{J}\mu _{B}e^{{M_{J}g_{J}\mu _{B}H}/{k_{B}T}\;}}}{\sum\limits_{M_{J}=-J}^{J}{e^{{M_{J}g_{J}\mu _{B}H}/{k_{B}T}\;}}}$$.

Where $$\mu _{M_{J}}$$ is the z-component of the magnetic moment for each Zeeman level, so $$\mu _{M_{J}}=M_{J}g_{J}\mu _{B}$$ – μB is called the Bohr Magneton and gJ is the Landé g-factor, which reduces to the free-electron g-factor, gS when J = S.  (in this treatment, we assume that the x- and y-components of the magnetization, averaged over all molecules, cancel out because the field applied along the z-axis leave them randomly oriented.)  The energy of each Zeeman level is $$E_{M_{J}}=-M_{J}g_{J}\mu _{B}H$$. For temperatures over a few K, $${M_{J}g_{J}\mu _{B}H}/{k_{B}T}\;\ll 1$$, and we can apply the approximation $$e^{{M_{J}g_{J}\mu _{B}H}/{k_{B}T}\;}\simeq 1+{M_{J}g_{J}\mu _{B}H}/{k_{B}T}\;$$ :

$$\bar{m}=\frac{\sum\limits_{M_{J}=-J}^{J}{M_{J}g_{J}\mu _{B}e^{{M_{J}g_{J}\mu _{B}H}/{k_{B}T}\;}}}{\sum\limits_{M_{J}=-J}^{J}{e^{{M_{J}g_{J}\mu _{B}H}/{k_{B}T}\;}}}\simeq g_{J}\mu _{B}\frac{\sum\limits_{M_{J}=-J}^{J}{M_{J}\left( 1+{M_{J}g_{J}\mu _{B}H}/{k_{B}T}\; \right)}}{\sum\limits_{M_{J}=-J}^{J}{\left( 1+{M_{J}g_{J}\mu _{B}H}/{k_{B}T}\; \right)}}=\frac{g_{J}^{2}\mu _{B}^{2}H}{k_{B}T}\frac{\sum\limits_{-J}^{J}{M_{J}^{2}}}{\sum\limits_{M_{J}=-J}^{J}{\left( 1 \right)}}$$,

which yields...

$$\bar{m}=\frac{g_{J}^{2}\mu _{B}^{2}H}{3k_{B}T}J(J+1)$$. The molar bulk magnetization is then $$M=N_{\text{A}}\bar{m}=\frac{N_{\text{A }}}{3k_{B}T}\left[ g_{J}^{2}J(J+1)\mu _{B}^{2}\right]H$$,

and the molar susceptibility is given by

$$\chi _{m}=\frac{\partial M}{\partial H}=\frac{N_{\text{A }}}{3k_{B}T}\mu _{\mathrm{eff}}^{2}\text{ ;    and     }\mu _{\mathrm{eff}}=g_{J}\sqrt{J(J+1)}\mu _{B}$$.
 * }

Multicol
Types of orbit:
 * Artificial satellite orbit
 * Box orbit
 * Circular orbit
 * Clarke orbit
 * Elliptic orbit
 * Geostationary orbit
 * Halo orbit
 * Hohmann transfer orbit
 * Lissajous orbit
 * Lyapunov orbit
 * Rosetta orbit

Elements of an orbit:
 * Semi-major axis
 * Eccentricity
 * Inclination
 * Argument of periapsis
 * Time of periapsis passage
 * Celestial longitude of the ascending node

Related concepts:
 * Gravity, Gravitational slingshot, and Escape velocity
 * Trajectory, Hyperbolic and Parabolic trajectory
 * Interplanetary Transport Network
 * Kepler's laws of planetary motion
 * Orbit equation
 * N-body problem
 * Orbital spaceflight/Sub-orbital spaceflight
 * Orbital maneuver, Retrograde motion
 * Specific orbital energy
 * Orbital period
 * Orbital speed

Embedded video
NC-4

Unit conversion
100 m

.10 - .25 nmi

Convert help

Bullet points

 * Main heading
 * Subheading0
 * Subheading1
 * S2
 * S3

Edit comment
Disambiguate CRT to Cathode ray tube using popups.

Keypress
Press at a serial console.