while we humens get current the time we touch the wire
137083
You only get an electrical shock if you touch both the wire and another thing (in most people's case, the ground) Then the current passes from the cable to the other thing through you. If you're ever silly enough to try, you can hang from the cable with one hand and nothing will happen to you, either.
161177
you are almost right, electrical ground is allways relative to a higer potential source like a live wire and the current flows toward ground from the higer source, when you ar isolated (you have rubber shoes, you have a high resistance in the way of the current), there still a current flow, but it is so small (nano amperes) that you body cant feel it
7510
Well, its pretty much as crimsonmoonvc said.\n\nUnlike the spatial dimensions of perception, time is not directly accessable by any sensory organ. We precieve time by the unfolding of the events around us.
191563
to move back and forth from the frequency to the time domain
526661
I think you may be referring to an oscilloscope.
370762
It probably is still providing capacitive reactance, but it's getting swamped by some other circuit component such as resistance (caused by skin effect) or inductance.  Both of those (and several others) are functions of frequency,\n\n\nDoug
231878
Time constants in electronic circuits.
31044
If you could pulse the electricity in the wire, it may change the velocity of the wire.  Look up something called Magneto-hydrodynamics
56095
Electromagnetic waves??? thats something ive never heard of before. how about posting the article or the website online? \n\ni do know that electricity can be "transmitted" by magnetism, via electromagnetic induction. according to faraday's law, a changing rate of magnetic flux linkage induces an electromotive force, and thus induces current on a conductor. check out faraday's law at wikipedia for more info dude...
623665
The points made by the previous responders are reasonable. In the context of communication, speed more often means bits per unit time, rather than physical speed which is distance per unit time. Electricity does travel very fast in the *latter sense*, close to the speed of light - but what is it about an electrical circuit which limits the number of bits which can be transmitted per second?\n\nSuppose you tried to send information by switching on and off the power to an electric fan being observed by someone else. It takes five or ten seconds for the fan to slow down or regain normal speed after it's been switched off or on, so it would be impossible to communicate much more than 3 or 4 bits per minute reliably using such a system. If you tried to do it faster there would be no change observable at the other end.\n\nThere's a similar limitation for any pair of copper wires. If L is the inductance and R the resistance, it takes a time roughly t ~ L/R for the current to drop at one end when the voltage has been switched off at the other end. The magnetic field surrounding the wires keeps the current going just like the momentum of the fan blades.\n\nThere's nothing much that can be done about this except for changing the structure of the cable. For example the pair of copper wires can be replaced by a coaxial cable in which one conductor forms a cylinder surrounding the other. The magnetic fields produced by the two currents tend to cancel which substantially reduces the inductance L, allowing a much faster (bits/second) speed.\n\nWhen most of the telephone network was implemented there was no reason to use coax since a pair of copper wires works fine for voice (audio frequencies = roughly 10K-100K bit/sec), although these will probably be upgraded if the phone companies are allowed to compete with the cable companies. \n\nFiber optic cable also has a very high bandwidth (bits/second) ... but your question is specifically about electricity.
486984
We have too much time on our hands.
102403
Time now, is a universal thing.  It would be a pain to convert different time measurements.\n\nBack then when clocks and wristwatches weren't invented yet, different civilizations had different ways of telling time because of the lack of world-wide communication like we have now.  With today's technology it is easy to have a universal system for time.
250585
Yeah, it's either was touching something conductive like sweat or metal like a coin or small piece of foil.
56836
Friction causes the electrical charge. Touch something rubber to kill it. Touch metal to continue the conduction thus shocking yourself or others. Break the curcuit.
61749
That means they change wih time. I do not understand your question. \n\nSuppose I measure the electric field at some location, X=10. If I move a charge close to X=10, say to X=9, then away to X=1, then back to X=10, then the electric field varies with time as I move the charge closer and then farther. It is a time varying electric field.
155737
I have always been interested in this.  I view time like a long chain being wrapped around a pole.  The more it wraps around the faster it gets.
34391
it is possibile but not with the technology we posess today