Useful rhymes, mnemonics etc. - Page 2

ATH · 2011-04-07, 11:57

Quote:

Originally Posted by Flatlander

Now I just need a mnemonic to help me spell mnemonic correctly first time.

Mersenne Numbers Ensure Most Often Naturally Interesting Conversations

Mersenne Number Enthusiasts Must Often Navigate Inextricable Computations

Mersenne Numbers Entail Many Ostensible Nefarious Internet Computations

cmd · 2011-04-07, 13:57

Quote:

Originally Posted by ATH

Mersenne Numbers Ensure Most Often Naturally Interesting Conversations

Mersenne Number Enthusiasts Must Often Navigate Inextricable Computations

Mersenne Numbers Entail Many Ostensible Nefarious Internet Computations

"Mersenne numbers ensure most naturally
number enthusiasts must navigate
entail many nefarious"

Many enthusiasts random sieve entail numbers naturally ensure

Many enthusiasts real sieve ensure numbers naturally entail

( ex - changes ) exchanges

petrw1 · 2011-04-07, 15:27

Quote:

Originally Posted by Uncwilly

I never heard the slow dancing part. And generally it was horseshoes then hand grenades.

and nuclear warheads

akruppa · 2011-04-07, 17:27

Not a rhyme or mnemonic, but related. To remember log₁₀(2), memorize

F₁₂ has 1234 digits.

The leading digits are 1044... so 2^4096 is pretty close to 10^1233, and 1233/4096 gives you the logarithm with relative error ~1.5e-5.

ewmayer · 2011-04-12, 16:29

Comments about previous posts, followed by one I learned from my amateur-astronomer father growing up -

- Spanish for key is "Clave" (not Llave) - Think 'clavicle", literally the 'key bone' due to its shape similar to an old-fashioned bent-wire key. (In English that connection has been lost, but e.g. in German it`s called key-ishly "Schlüsselbein")

- The resistor-color one could be made a bit more inoffensive by replacing "rape" with "ravish".

- The bit about "hand grenades" used to confuse me ... I always the thought the point of hand grenades was to be able to do major damage (especially to concealed targets not reachable by gunfire) *without* having to get terribly close. Thankfully some explained that the reference was to the hand grenade only having to go off near someone to have its desired effect.

Quote:

Originally Posted by akruppa

Not a rhyme or mnemonic, but related. To remember log₁₀(2), memorize

F₁₂ has 1234 digits.

The leading digits are 1044... so 2^4096 is pretty close to 10^1233, and 1233/4096 gives you the logarithm with relative error ~1.5e-5.

Cute, but simply remembering the 5-digit palindrome "30103" (especially easy for U.S. residents, since it has the same format as U.S. postal codes) gives accuracy 1000 times better.

--------------

The astronomical mnemonic I learned from my Dad is the one commonly used to encode the stellar classifications of the famous Hertzsprung–Russell diagram (which is to stars much like the periodic table is to chemistry):

"Oh Be A Fine Girl, Kiss Me"

[There were also several off-main-branch stellar types which were remembered via the extended version

"Oh Be A Fine Girl, Kiss Me Right Now Sweetheart".

xilman · 2011-04-12, 18:16

Quote:

Originally Posted by ewmayer

Cute, but simply remembering the 5-digit palindrome "30103" (especially easy for U.S. residents, since it has the same format as U.S. postal codes) gives accuracy 1000 times better.

Something I first memorized decades ago, despite not having the benefit (?)of being a U.S. resident.

Paul

davar55 · 2011-04-12, 18:46

Quote:

Originally Posted by xilman

... the benefit (!)of being a U.S. resident.

Couldn't resist the minor alteration.

But Hail Britania, Britania rules the waves !

xilman · 2011-04-12, 19:01

Quote:

Originally Posted by davar55

Couldn't resist the minor alteration.

But Hail Britania, Britania rules the waves !

Couldn't resist the minor alteration.

Rule Britannia, Britannia rules the waves.

davar55 · 2011-04-12, 19:09

Quote:

Couldn't resist the minor alteration.

Rule Brittania. Brittania rules the waves.

Oh hail, a lex error and a d*mn double typo.
Are you absolutely sure two t's? I guess
someone proud of being British would know
how to spell Britain. Or maybe my error was
just an Americanization? The are no double
letters in the United States of America.
Well, maybe in Massachusetts and Connecticut.

ewmayer · 2011-04-12, 19:17

Rule Britannia, the Sun Never Sweats, and all that.

Just remembered a German one I learnt as a wee lad forced into violin lessons: The strings on a violin have basic tones G,D,A,E, the German mnemonic used to make that easy to remember is "Geh, Du Alter Esel". (Go, you old donkey).

------------

("Go, you old ass" sounds a little too much like a solicitation for geriatric naughtiness ... not that there`s anything wrong with that, it could be considered "ribaldry with a new wrinkle")

Uncwilly · 2011-04-13, 00:34

Quote:

Originally Posted by ewmayer

"Oh Be A Fine Girl, Kiss Me"

[There were also several off-main-branch stellar types which were remembered via the extended version

"Oh Be A Fine Girl, Kiss Me Right Now Sweetheart".

Previously dealt with.

Quote:

Originally Posted by Uncwilly

http://www.mersenneforum.org/showthread.php?t=14245

2011-04-12, 19:17	#21
ewmayer ∂²ω=0 Sep 2002 República de California 2D7F₁₆ Posts	Rule Britannia, the Sun Never Sweats, and all that. Just remembered a German one I learnt as a wee lad forced into violin lessons: The strings on a violin have basic tones G,D,A,E, the German mnemonic used to make that easy to remember is "Geh, Du Alter Esel". (Go, you old donkey). ------------ ("Go, you old ass" sounds a little too much like a solicitation for geriatric naughtiness ... not that there`s anything wrong with that, it could be considered "ribaldry with a new wrinkle") Last fiddled with by ewmayer on 2011-04-12 at 19:17

2011-04-07, 17:27	#15
akruppa "Nancy" Aug 2002 Alexandria 2,467 Posts	Not a rhyme or mnemonic, but related. To remember log₁₀(2), memorize F₁₂ has 1234 digits. The leading digits are 1044... so 2^4096 is pretty close to 10^1233, and 1233/4096 gives you the logarithm with relative error ~1.5e-5.