Acronyms / Mnemonics - Post your favorites

[BuddhaRhubarb]

The North American Marlon Brando Look-a-like Association.

[grumbler]

"True virgins make dull company (at weddings)" converts true headings to compass headings by accounting for variation (which yields magnetic heading) and deviation (which yields compass heading), remembering to add west variation and deviation (thus subtracting those east).

"Can dead men vote twice (at elections)?" converts a compass heading to a true heading by the reverse process, adding east values.

[vinraith]

Oh Be A Fine Girl(Guy) Kiss Me

OBAFGKM - basic star classification, O is hottest, M coolest.

I like it.  What do the middle ones stand for?  I'm assuming the lukewarm stars, but what are the technical terms?

If you're looking for a point of reference the sun is a G-class star. O's are extraordinarily hot, blue-white, and (in astronomical terms) very short lived (ten million years, tops). M's are small, dim, red, cool, and burn for hundreds of billions of years or more. Stars inbetween are, well, inbetween.

Here's a standard Herzprung Russell diagram for reference, the mnemonic in question only applies to the main sequence stars (the ones down the middle, which are basically "normal" stars):



And Wikipedia has a nice breakdown of each stellar class here.

[Iormlund]

Un día ví un viejo vestido de uniforme: (Integral)udv = uv-(Integral)vdu.

[crazy canuck]

FUBAR

[Richard Hakluyt]

Going back to the stellar classifications for a moment, the Hertzsprung-Russel diagram has to be one of the coolest of all diagrams 

[vinraith]

Going back to the stellar classifications for a moment, the Hertzsprung-Russel diagram has to be one of the coolest of all diagrams 

Indeed. I have a print of the one I linked up there. In addition to being informative and generally cool, it's also kind of pretty IMO.

[Ed Anger]

No, I shall not.

[Barrister]

I can't say that I used this one in school, but I kind of whish I had.

"Camels Often Sit Down Carefully. Perhaps Their Joints Creak. Possibly Early Oiling Might Prevent Premature Rheumatism"

[fhdz]

"See You Next Tuesday!"

[The Nickname Who Was Thursday]

"See You Next Tuesday!"

In that vein there's also "If U Seek Amy."

[Strix]

Every good boy does fine. Good boys do fine always.- Musical notes on the stanza for treble and bass clef.

Interesting. I learned it as "Every Good Boy Deserves Fudge".

[Neil]

Going back to the stellar classifications for a moment, the Hertzsprung-Russel diagram has to be one of the coolest of all diagrams 

Indeed.  Not only is it cool, but terribly interesting as well.  I'm always fascinated by the idea of those class-0 stars who are as close to blasting off their own photospheres as you can get (and occasional do just that), just from the enormous energy released by their nuclear reactions.  The sheer power is somewhat awe-inspiring, even for me.

[The Brain]

If you can't use the power for something then it might as well be on the moon.

I took some astrophysics courses back in school. One of the lecturers looked like Bill Murray.

[Siege]

*any military acronym*

Nah.

They are very useful.

I prefer MLECOA or MDECOA than Most Likely Enemy Course Of Action or Most Deadly Enemy Course Of Action.