@Mellisa_K: Lynne Kelly is a Melbourne academic and a woman.
Related to Ned?

Yep

 

Right triangle: sin=O/H, cosine=A/H. tangent=O/A. O =OPPOSITE, H=HYPOTENUSE , A= ADJACENT..Words to remember: oscar had a heap of apples.

 

Mnemonics aren't a waste of time. Depends on how you think. I'm a very abstract thinker. I graduated with a bachelors degree in applied mathematics. Mathematical proofs were my daily lunch! I could visualize a theoretical, referring to specific theorems and hypotheses, block diagram and my buddy was good at the details. Like V=IR in electronics. I knew that I was right 100%. Mnemonics would have helped me bring it home with the picayune details.

 

Mnemonics aren't a waste of time. Depends on how you think. I'm a very abstract thinker. I graduated with a bachelors degree in applied mathematics. Mathematical proofs were my daily lunch! I could visualize a theoretical, referring to specific theorems and hypotheses, block diagram and my buddy was good at the details. Like V=IR in electronics. I knew that I was right 100%. Mnemonics would have helped me bring it home with the picayune details.

yes i agree depends on one's learning style and we are all different in that regard. i think a lot of ppl wouldnt consider they dont use this type of memory aid when they actually do. for example, rules and algorithms can be seen as easily digestible and memorable facts strung together so they make intrinsic sense. my mum says "blue and green should never be seen except with a colour in between". i was taught spelling at school with this "i before e except when the sound is e". this includes highly figurative or abstract concepts expressed as literal and banal aphorisms eg "a bird in the hand is worth two in the bush" or "make hay while the sun shines".

 

I memorized the multiplication tables up to 12 in the 4th grade, it was on the folder I carried papers in, so I don't need any mnemonics to help me remember them.

I used a mnemonic for the resistor color code at first because the order was random and made no sense. Once I memorized the values associated with colors, I no longer needed the mnemonic.

I know some people who need to say their ABC's to figure out letter order. It's painful to listen to someone singing the ABC song to figure out the letter before or after a certain letter...

Some things must be memorized because there is no way to derive their meaning, name, etc.

yes creating order out of seemingly unordered or random facts or features is a very human trait. non psychotic ppl see jesus in toast or a face in the clouds. there is litte difference between this and memorising, say, the octaves scale - an apparently random jumble of letters - by imposing on the list, the order of a memorable sentence "every good boy deserves fruit"

 

Know the one for resister color?
Bad boys ravage our young girls but violet gives willingly.
Black Brown Red Orange YellowGreen Blue Violet Grey White
Easy as 0123456789
Did you know color blindness is usually linked to the Y chromosome.? Women usually have better color vision.

yes i have heard that. i have also heard psychosis linked to xy chromosome; so is autism, stuttering

 

@Mellisa_K: Lynne Kelly is a Melbourne academic and a woman.
Related to Ned?

a recent premier of one of our australian states (queensland) was a direct decendant of captain (and later New South Wales governer) william bligh

 

I learned a harder way.when you wire a transistor wrong they get quite hot. I carried the2N222A brand(as in cattle) from a burn in my fingt for a very long time from the burn It is on of the more common transistor and so on of my favorites, also a NPN. does wonders for the memory.Practiced some rarely used vocabulary too.

 

I learned a harder way.when you wire a transistor wrong they get quite hot. I carried the2N222A brand(as in cattle) from a burn in my fingt for a very long time from the burn It is on of the more common transistor and so on of my favorites, also a NPN. does wonders for the memory.Practiced some rarely used vocabulary too.

Ah yes memory by association: Pavlovic in fact.
The first time I got belted by mains VAC my hypocampus stored it and it's put me in good stead since.

 

Mellisa_K said:
a recent premier of one of our australian states (queensland) was a direct decendant of captain (and later New South Wales governer) william bligh
That must have been a Bounty for Queensland!

 

a recent premier of one of our australian states (queensland) was a direct decendant of captain (and later New South Wales governer) william bligh

Funny... A few years ago I read this fascinating book:

https://www.amazon.com/gp/product/0877423555

 

I don't have one for the black/blue/*Grn/yel) to whatever white black combo and green that's used in power cords.

I know black is hot (L), white is neutral (N) and green (G) is ground and green/yellow (G) is ground.
Blue? Brown?

I know the wider prong is neutral. Hot is the smaller one in the US an the round one is ground.

So, if I have to attach a power cord that contains blue and brown, I usually find an outlet for orientation and an ohmmeter.

I was being taught at a Hewlett-Packard Explorer's Post in 1972 and I was asked which wire goes to the switch/fuse. I would not budge from my answer of "Black". He thought white. I as exposed to house wiring by then.

 

female children ca be autistic but because of fundamental differences in brain wiring the disabilities are not as severe.and more easily handled and even hidden.Several girls in my community (TG) are autistic. One of my closest friend has a son.Home I treat as if he were one of my own.

 

How about this one I came up with Red is right left is light. for wiring stereos

 

I mostly use mnemonics for spelling. I secretly think, "money-monics" or, "P-neumonia".
Not so bad with electronics, but my 5 and 6 fingers have counted to blue and green all my life.

 

@millisa K
Are you stll following this thread?

 

@millisa K
Are you stll following this thread?

You betcha.

Btw my tag spelt @Mellisa_K , with e, wendy

 

Just remember the arrow always points to the negative polarity on a properly biased device . works for transistors and LEDs.

 

Maybe I'm the weird one in the forum of weird ones, but I don't find mnemonics or analogies useful. I learned the water analogies for electricity, but I thought they were stupid. If I was ever taught any mnemonics for the resistor color code, I don't remember. I do, however, remember referring to a chart over and over and over until eventually it became ingrained in my mind.

As far as BJT's, I would think it should be easy enough to remember that the arrow points in the direction of conventional current flow.

 

Just remember the arrow always points to the negative polarity on a properly biased device . works for transistors and LEDs.

thats a nice one. works for me. its a keeper. thanks wendy