Your video, A Day In The Life Of High Voltage Power Line Inspector, has made it into the Top 15 New Videos listing. Congratulations on your achievement. For your contribution you have been awarded 1 Power Point.

My understanding is that the voltage being sent to the LED headlights is passed through a Pulse Width Modulation (PWM) driver that creates a pulsing effect so that the LED receives a consistent average voltage over time and allows for the control of the LED's perceived brightness. If there is a mismatch between the PWM frequency and the frame rate of the camera, you will see pulsing or flickering. You see the same kind of effect sometimes when a camera records a helicopter and the rotors appear to be stationary like here.

At least I'm pretty sure that's what's going on.

They tested it on 3 macs and one pc. Mac motherboards are nothing special because you don't build you own macs, but a built pc might have a quality motherboard with all those hard caps and voltage spike protection. My guess is that is what saved it. a cheap pc motherboard would die, too.

But there's no insulator between the cells. Why wouldn't the electricity just flow freely between the pins through the interior of the lemon?

I don't think you can increase the voltage of an AA battery by creating extra terminals, which is essentially what he's doing here...

While I don't doubt the hills have been mined or deforested, the structures you see I believe are high voltage trunk line supports, not cranes and drag lines.

It looks like the wires going *through* the steps are just telecom - wouldn't kill anyone. However on the opposite end of the bridge, right at head level, those ARE high voltage lines.

Civil Engineering for Population Control ?

*engineering.
Someone's coupled something in serial - the light is (also) coupled in serial with maybe several other outlets - causing even higher voltages, and causing the light to go on when the hair dryer circuit connects.

I do all my own electrical work. I have a degree in Electronics which certainly helps with understanding though the classic HOME WIRING books were a must too. I found serious problems with the house we bought. Someone had bonded neutral and ground in a subpanel and we had voltage on every metal surface in the house.

Interesting, but surely, a part of the brain "lighting" up, having been given certain stimuli, does not necessarily explain root cause. eg;- Why does the light work when it is switched on? A neurological answer would simply attribute it to the necessary connections being made. But we know it is WAY more complicated. The correct bulb must be used, the correct voltage, the connection cannot be broken, the switch must be operable, etc. Any one of these not in place = no light. Similarly with neurology. The light is on, but myriad reasons could account for it. Nature, nurture, peer pressure, obligation, and much more dictate what/who we are. A sadists pleasure neurons light up witnessing pain, but may also light up when helping someone. So which is the true reaction, or are they both, though contradictory, true? I respect science immensely, but trying to map the brain as if it were totally predictable in any given circumstance seems - unless we are all identically cloned have identical experiences, identical parents, and identical hopes and dreams - futile.

Your video, Bird on high voltage line get fried - caught on dashcam, has made it into the Top 15 New Videos listing. Congratulations on your achievement. For your contribution you have been awarded 1 Power Point.

Sorry, but I'm inclined here to call this one as I see it.

If Mr. Veitch is trying his hardest to come across as a loud-mouthed, peace-disturbing, douche-nugget, then I must commend him on a job well done. Really would have made my day to reach the end of the clip and find this obnoxious dicktard flopping around on the ground like a beached fish as a couple of the legit officers steadily pump some serious Mega-voltage through him via their several well-tuned tazers. A-hole.

According to http://rt.com/news/170704-tesla-tower-lightning-russia/

The secret, open-air, high-voltage testing device was constructed in the late 1970s for testing insulators to protect vehicles, aircrafts and electronic equipment against lightning.

5 more comments have been lost in the ether at this killed duplicate.

Your video, Tree falls on high-voltage line and is blown into fragments, has made it into the Top 15 New Videos listing. Congratulations on your achievement. For your contribution you have been awarded 1 Power Point.

It's actually slightly more complicated still. With the power supply he's using, a DC power supply, he could turn it up to 100+ volts and hold both leads without issue (not touch them to his tongue, but hold them in his hands would be fine). I've done exactly that before; I could feel a slight amount of discomfort as current flowed through my fingers at both leads (the point of highest current density in the circuit that is my body), but it could otherwise be said that it 'tickled'. I've also had experiences once or twice in my life where I accidentally touched 120V AC, and it most certainly did NOT tickle, it HURT.

What people don't realize about humans (and even regular tap water) is that both are actually highly resistive to DC current, in the megaohms region. Once you get to 10's of Hz, for example 60Hz, 100V starts becoming quite deadly. The capacitance in our body (and in water with ion contaminants) allows current to flow much more readily when you get to alternating current of at least that minimum frequency. The net effect is that your body's resistance decreases as the input frequency increases.

Yes, it is 'current that kills', and even more accurately 'current density that kills', but it's the amount and frequency of voltage applied paired with the frequency specific resistance of the system that determines how much current will flow.