Electricity Is Human Thinking ,Do You Want To Know More?

Lines on the street that indicate it is a crosswalk like so

A crossing guard like this

Or a brown brick crosswalk like this http://www.baristanet.com/Brick%20look%20crosswalk.jpg

yes thats too to young. is she even in school yet? if she wants an electronic device, get her leap phonics, or fisher pricem or an eductional electroninc game. not one that you can just use for fun. the leapphonics, and other line of games like that are both fun, educational, and increases their ability to learn faster and will be very handy later on in life. it will be proven when s/he wants to go to a great college or university, and will do great later in life. people dont realzie what educational devices can do to people. un-educational games s/a halo 3 , etc are nothing more than time wasters and no-do-gooders.

“how is going to remove noise” — Scoble

On stage: Thoora

Kmilyn: Beam Me Up: I should know better than to let all the electrical impulses bounce around in my mind where th…

The electrical impulse travels down a nerve until it reaches the muscle. The nerve is not attached to the muscle directly so it needs a special mechanism to transfer the impulse, so nerve is not the answer…neither is brain since that just originates the impulse.

The answer is a structure called a neuromuscular junction. What this is is a special kind of synapse in which the nerve releases a chemical called acetylcholine. This chemical, which is released when the nerve wants to transfer an impulse, floats across to the muscle and hits receptors on its surface. When it hit those receptors, the muscle knows that an impulse has been transferred and reacts as such.

two ways : magnetic and electric.so simple magnetic way induces current by maxwell low .and electric way y using capacitors

RT no. it is our ligaments that bend. (litid) RT @kuyakim_atienza are our bones flexible? and muscles too?

Rip off of lucky charm by moldy peaches. Tut tut

scary shiiiit

Lol RT I think a railroad spike in her occipital lobe would be a nice look…….

why do i go to class and waste 2 hours a 30 mins each week when i could watch videos and understand this i 3 minutes

The answer above is good, but I like the 'wave' analogy. At a stadium, everyone is sitting down and whatever. That is like the resting potential (no stimulus has been applied). The nerve (or crowd) is said to be polarized, which means negative to the surrounding area (or in the seated position).

Then, for whatever reason a stimulus triggers an action potential (it could be a neurotransmitter in the brain, light triggering the rods and cones in the eye, etc). That would be like the announcer guy saying over the PA, "Hey guys, start the wave in Section A."

Once that occurs, the nerve becomes DEpolarized in one section only (everybody in section A stands up). This is because of the Na ions that go rushing out and make that part of the neuron positive instead of negative (a person goes from seated to standing position).

This depolarization in one part of the nerve triggers the next part of the nerve to become depolarized next.(hey, why is everybody in the next section standing up and yelling "whoo?"). So Na ions rush out of the next part of the nerve cell based on charges and all that. But the original section now has to go back to normal. It's not the wave if you don't sit back down. So the first part of the nerve becomes REpolarized (K ions come rushing in and make it negative again). While section B is standing up, section A is sitting back down. And so on, each section triggers the next, and you get a wave like action. Just like random people sitting then standing is not the wave, random parts of the nerve changing polarity is not a nerve impulse. It takes a sequential, orderly progression of polarization-depolarization-repolarization (sitting-standing-sitting) to make an action potential (wave). You wouldn't see the crowd doing the wave unless people's movement was organized, just like how a cell transmits an impulse.

The one thing I haven't included is the refractory period. You'll notice that the nerve starts out negative due to a build up of Na ions on the inside, then locally becomes positive when Na rushes out. It becomes repolarized not because Na rushes in, but instead K (which is also a positive ion). The refractory period is the time in which the two swap places again, after the action potential has passed through (after people sit down after the wave they pick up their coats and programs and settle back in). This is why an action potential will not move backwards along a nerve.

A video interview with Parky, where the boss relates how much he wants tomorrow's game to go ahead, is now available on CAFC Player (MW)

First response is correct. An electric fence controller throws about 7,000 volts onto the fence, which is quite enough to fry most gadgetry that would send or receive a signal to control your motor.

Was this Garrett A. Morgan?? He invented both the traffic signal which he sold to GE and a breathing mask which he used to save some people during a cave in. I remember hearing the story years ago. He was a black guy so he did all these wonderful things but nobody gave him much credit until years later.

Yeah Probualy