What is electricity? This question is impossible to
answer because the word "Electricity" has several
contradictory meanings. These different meanings are
incompatible, and the contradictions confuse everyone.
If you don't understand electricity, you're not alone.
Even teachers, engineers, and scientists have a hard
time grasping the concept.
Obviously "electricity" cannot be several different
things at the same time. Unfortunately we have defined
the word Electricity in a crazy way. Because of
the contradictory meanings, we can never pin down the
nature of electricity. In the end we are forced to
declare that there's no such stuff as "electricity" at
all! Here's a quick example to illustrate the problem.
Do generators make electricity? To answer this
question, look at a light bulb. In household lamp
cord, the charges (electrons) sit in one place and
wiggle back and forth. That's AC, alternating
current. At the same time, the electrical energy
moves rapidly forward. The energy does not wiggle,
instead it races along the wires from the distant
generators and into the light bulb. OK, now ask
yourself this: does "the electricity" sit inside the
wires and vibrate back and forth... or does it flow
forwards at high speed? It cannot do both! Which is
"the electricity", the flowing electrons, or the
flowing energy? There's no answer. This little
question exposes a great flaw in the way we talk
about "electricity". If we can repair this flaw, our
explanations of "electricity" will finally start
making sense.
Below are the most common meanings of the word
Electricity. Which one do you think is right? Think
about it carefully. If one of these meanings is correct,
all the others must be wrong! After all, no "science
term" must ever have several conflicting definitions.
Unfortunately dictionaries and encyclopedias contain all
of these contradictions. (Click the links to find out
more about each one.)
- "Electricity" means only one thing: electrons
and protons,
electric charge.
Examples: CHARGES OF ELECTRICITY. FLOW OF
ELECTRICITY. COULOMBS OF ELECTRICITY.
2. "Electricity" means only one thing: the
electromagnetic energy sent out by batteries and
generators.
Examples: PRICE OF ELECTRICITY. KILOWATT-HOURS
OF ELECTRICITY.
3. "Electricity" means only on thing: it refers
to the
flowing motion of electric charge.
Examples: CURRENT ELECTRICITY. AMPERES OF
ELECTRICITY.
4. "Electricity" means only one thing: it refers
to the
amount of imbalance between quantities of
electrons and protons.
Example: STATIC ELECTRICITY. DISCHARGE OF
ELECTRICITY.
5. "Electricity" is nothing other than a
class of phenomena involving electric charges.
Examples: BIOELECTRICITY, PIEZOELECTRICITY,
TRIBOELECTRICITY, THERMOELECTRICITY, ATMOSPHERIC
ELECTRICITY ...ETC.
6.
Other less common definitions:
If we wish to agree on a single correct definition of
"electricity," which definition should we choose? Well,
maybe we don't need to choose just one. Suppose we
ignore the contradictions and pretend that ALL of the
above definitions are true. Below is the "clear" and
"simple" description of electricity that results:
Electricity is a mysterious incomprehensible entity
which is invisible and visible at the same time. It
is both matter and energy. It's a type of
low-frequency radio wave which is made of protons.
It is a mysterious force which looks like blue-white
fire and yet cannot be seen. It moves forward at the
speed of light... yet it vibrates in the AC cord
without flowing forwards. It's totally weightless,
yet it has a small weight. When electricity flows
through a light bulb's filament, it gets changed
entirely into light. Yet no electricity is ever used
up by the light bulb, and every bit of it it flows
out of the filament and back down the other wire.
College textbooks are full of electricity, yet they
have no electric charge. Electricity is a class of
phenomena which can be stored in batteries! If you
want to measure a quantity of electricity, what
units should you use? Why Volts of course. And also
Coulombs, Amperes, Watts, and Joules, ALL AT THE
SAME TIME. Yet "electricity" is a class of
phenomena; it's a type of event. Since we can't have
an AMOUNT of an event, we can't really measure the
quantity of electricity at all, right?
Heh heh.
Does my description above sound stupid and impossible?
You're right. It is. The word "electricity" has
contradictory meanings, and I'm trying to show what
happens when we accept more than one meaning.
Electricity is not both slow and fast at
the same time. It is not both visible
and invisible.
Instead, approximately ten separate things
have the name "electricity." There is no single
stuff called "electricity." ELECTRICITY DOES NOT EXIST.
Franklin, Edison, Thompson, and millions of science
teachers should've had a long talk with Mrs. McCave
before they decided to give a variety of independant
science concepts just one single name.
Mrs.
McCave was invented by Dr. Seuss. She had twenty
three sons. She named them all "Dave."
Whenever we ask "WHAT IS ELECTRICITY," that's just
like asking Mrs. McCave "WHO IS DAVE?" How can she
describe her son? There can be no answer since the
question itself is wrong. It's wrong to ask "who is
Dave?" because we are assuming that there is only one
Dave, when actually there are many separate Daves. Who
is Dave? Mrs. McCave cannot answer us until she first
corrects our misunderstanding.
For the same reason, we will never find a simple
answer to "what is electricity?" because the question
itself is wrong. First we must realize that
"electricity" does not exist. We must learn that many
different things exist in wires, but that people wrongly
call all of them by a single name.
So never ask "WHAT IS ELECTRICITY". Instead, discard
the word "electricity" and use the correct names for all
the separate phenomena. Here are a few of them:
- What is
electric charge?
- What is
electrical energy?
- What are
electrons?
- What is
electric current?
- What is an
imbalance of charge?
- What is an
electric field?
- What is
voltage?
- What is
electric power?
- What is a
spark?
- What is
electromagnetism?
- What is
electrical science?
- What is
electrodynamics?
- What is
electrostatics?
- What are
electrical phenomena?
These questions all have sensible answers. But if you
ask WHAT IS ELECTRICITY?, then all answers you find will
just confuse you, and you'll never stop asking that
question.