Electrical question (well, lightning, really)

AI Thread Summary
Lightning can travel upwards if a device is used to generate it, but it will prefer to strike any nearby conductive materials, such as metal. The path of lightning is determined by the least resistance, which is often influenced by the presence of conductive objects. Lightning typically travels through a plasmatic track created by itself, and once established, it follows that path until the energy is discharged. While human bodies can conduct electricity due to their water and mineral content, the risk of being struck by lightning is significantly higher in open areas during storms. Safety measures include avoiding tall structures and minimizing exposure to conductive items during thunderstorms.
DeeZee
Messages
18
Reaction score
0
Can lightning shoot up? Say someone had a device that could fire out lightning, would it shoot upwards or would it come down?
Oh! And if the person had mechanical devices on them, like metal or something, would the lightning be attracted to it?
 
Engineering news on Phys.org
Lightning goes from the ground to the sky. Lightning is the relay of excess charge between two conductive mediums, such as in any simple capacitor. The only difference is light travels through air, which has a dielectric constant greater than one. It would be attracted to any conductive object, just as any spark or electron "jumping the gap".
 
So...If a person was using a device or something to shoot lightning up, it would go up, but if they had something on them like metal or a device made of metal, it would go right to that instead? Sorry, I just don't understand all of what you're saying exactly. :|
 
This is not so simple

The lightning "travels" via a plasmatic "track", which is created by the lightning itself.
This is like with machine that lays the railroad tracks and advances by riding on the last layed railroad tracks and so on...

Once the plasmatic track was defined (the lightning reached the final destignation, the track path can't change and the lightning continue with the same path until the energy discharged...
 
DeeZee said:
So...If a person was using a device or something to shoot lightning up, it would go up, but if they had something on them like metal or a device made of metal, it would go right to that instead? Sorry, I just don't understand all of what you're saying exactly. :|

Think of path of least resistance - since air is such a poor conductor anything that assists in letting it travel less distance across this poor conductor is the likely spot of origination. That's why things like power line poles, trees, buildings, et cetera are the likely place for it to strike and where lightning rods are located to help divert it around the structure. Not only are they made of metal, they are pointed upward and grounded electrically to assist in their probability of being the place struck.

On the TV show "Mythbusters" they did a test to see if having a metal tongue piercing increased the chance of being struck by lightning and found no real statistical rationale for it. Our bodies are made up of a lot of water and traces of salt and other minerals are in the blood - we're not very perfect insulators and can conduct pretty well at the voltage levels of lightning.

If you are standing in the middle of an open field in a thunderstorm this is very dangerous. Your head is now 5-6ft closer to the clouds making you the path of least resistance. And like the first 2 guys who tried to repeat Franklin's kite experiment and actually ended up with lightning found out, its not a good thing. A set of metal keys in your pocket is not a big concern, getting yourself low to the ground (to avoid becoming a lightning rod) and moving away from a lone tree that is likely to be struck and so on should be the primary concern.
 
I used to be an HVAC technician. One time I had a service call in which there was no power to the thermostat. The thermostat did not have power because the fuse in the air handler was blown. The fuse in the air handler was blown because there was a low voltage short. The rubber coating on one of the thermostat wires was chewed off by a rodent. The exposed metal in the thermostat wire was touching the metal cabinet of the air handler. This was a low voltage short. This low voltage...
Thread 'How Does Jaguar's 1980s V12 Dual Coil Ignition System Enhance Spark Strength?'
I have come across a dual coil ignition system as used by Jaguar on their V12 in the 1980's. It uses two ignition coils with their primary windings wired in parallel. The primary coil has its secondary winding wired to the distributor and then to the spark plugs as is standard practice. However, the auxiliary coil has it secondary winding output sealed off. The purpose of the system was to provide a stronger spark to the plugs, always a difficult task with the very short dwell time of a...
Back
Top