About Me

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I'm a life-long New Englander, father of 4 challenging kids (I know: I'm supposed to say "wonderful", but while that'd be true, technically speaking, it'd also be misleading), and fortunate husband to my favorite wife of more than 20 years. I've got over 20 years experience breaking things as a test engineer, quality engineer, reliability engineer, and most recently (and most enjoyably) a Product Safety / EMC Compliance Engineer. In the photo, I'm on the left.
Showing posts with label Mnemonics. Show all posts
Showing posts with label Mnemonics. Show all posts

Sunday, October 14, 2012

The Fallible Nature of Mnemonics

Do you make use of mnemonics to learn things? Do you remember My Dear Aunt Sally from algebra? This mnemonic is supposed to help us remember the order of mathematical operations: Multiplication,  Division, Addition, Subtraction. Since I was in school, they've changed this to "Please Excuse My Dear Aunt Sally" to include Parentheses and Exponents.

"Richard Of York Gave Battle In Vain" ring any bells? This phrase is supposed to help us remember the colors of the rainbow (and their order): Red, Orange, Yellow, Green, Blue, Indigo, Violet.
The more sociopathic among you might better recognize "Run Over Your Granny Because It's Violent"

Young Electrical Engineers are taught (or so I'm told) that "Bill Brown Realized Only Yesterday Good Boys Value Good Work" to help them remember the color coding of electronic resistors, which utilize a sequence of colored bands around the component, and the order of the colored bands will tell you what the numerical resistance value is. The colors, in order, are Black, Brown, Red, Orange, Yellow, Green, Blue, Violet, Gray, White.

Older Electrical Engineers were taught a different phrase: "Bad Boys Rape Our Young Girls But Violet Gives Willingly." We all wanted to know where Violet lived, naturally.

Mnemonics have probably been around since mankind was still in its proverbial diapers, and they certainly have their value; I have made as many for myself that were helpful as I did that were not.

To wit:

I have a pair of nieces who are twins. They are not identical twins, but are fraternal (or, I suppose, sororal). Like many twin sets these days, their parents named the first born with a name that begins with "A" and the second born a name that begins with "B".

Despite their being very, very different from each other, I was unable to get a handle on which was which until they were about 8 years old. How stupid am I, eh? I decided at one point that I could use a nice, easy mnemonic for this.

Baby B has blue eyes! B = Blue, and also = Bertha! Easy!
But not for me...Baby A has brown eyes, and B also = Brown. So, does Bertha have Brown or Blue eyes? No idea.

Did I go instead with A = Andrea and also Azure? Does Andrea in fact have Azure eyes? ugh...I could screw up a nap!

When my beautiful wife sent me for Plain yogurt, I got in trouble for coming home with Vanilla. Doesn't Plain = Vanilla? Isn't the phrase "Plan, vanilla wrapper"? This one I screwed up for years...do I get Plain, or Vanilla?

Am I the only one who screws up mnemonics?