R
Roger Johansson
Guest
http://hyperphysics.phy-astr.gsu.edu/hbase/electric/phase.html#c1
Above url is a great resource for learning the basics of electronics,
and many other sciences.
I note, however, that mnemonics are used, even when the value of the
mnemonics is very doubtful.
Eli the Ice man, is obviously such a mnemonic, at the url quoted above.
Here the practical value seems to be zero or less than zero.
It is a lot easier to learn how inductors and capacitors work,
and from that knowledge understand when the current lags
the voltage and vice versa, than to learn some complex
mnemonic phrase.
Using mnemonics is a remnant of religious teachings.
In religion you only have to learn to repeat stuff.
There is no need to understand anything.
You learn the holy texts like a parrot, and that was the most advanced
form of learning for thousands of years, as long as the church had
control over the education.
In lately secularized countries, like USA, the religious views on
learning is still strong, and has its influence even on scientific and
technical education. That is why mnemonics and acronyms are used and
loved so much by US-americans.
It is a way to tell the world: See how good I am, I have "learned"
this, I can repeat it over and over again.
--
Roger J.
Above url is a great resource for learning the basics of electronics,
and many other sciences.
I note, however, that mnemonics are used, even when the value of the
mnemonics is very doubtful.
Eli the Ice man, is obviously such a mnemonic, at the url quoted above.
Here the practical value seems to be zero or less than zero.
It is a lot easier to learn how inductors and capacitors work,
and from that knowledge understand when the current lags
the voltage and vice versa, than to learn some complex
mnemonic phrase.
Using mnemonics is a remnant of religious teachings.
In religion you only have to learn to repeat stuff.
There is no need to understand anything.
You learn the holy texts like a parrot, and that was the most advanced
form of learning for thousands of years, as long as the church had
control over the education.
In lately secularized countries, like USA, the religious views on
learning is still strong, and has its influence even on scientific and
technical education. That is why mnemonics and acronyms are used and
loved so much by US-americans.
It is a way to tell the world: See how good I am, I have "learned"
this, I can repeat it over and over again.
--
Roger J.