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#1
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How did this man die?
Dolly leaves 1 dead in Mexico, thousands without electricity Last Updated: Friday, July 25, 2008 | 10:19 AM ET Comments2Recommend7 CBC News One man in Mexico is dead in the aftermath of Hurricane Dolly — now downgraded to a tropical depression — and thousands remained without power Friday. The man was electrocuted in Matamoros on Wednesday after stepping on a power line while walking in waist-deep water, say emergency officials. The storm, which continued to dump rain over Texas and Mexico on Friday, made landfall Wednesday as a hurricane just north of the border in Texas. The hurricane ripped off roofs, flooded roads and damaged power lines, but the Rio Grande levees held strong. Tamaulipas state Gov. Eugenio Hernandez said power would soon be completely restored in Matamoros, a city of 600,000 across the Rio Grande from Brownsville, Texas. He said streets now under water should be drained shortly. The governor said the damage was generally minor across Mexico's Gulf coast region. About 2,500 police and soldiers patrolled to prevent looting, while many of the 13,000 people who took refuge in 21 shelters in Tamaulipas state already had gone home. U.S. President George W. Bush has declared 15 Texas counties a disaster area, as insurance estimators put the losses at $750 million US. About 159,000 people in the region were still without power late Thursday night, according to Texas Gov. Rick Perry's office, a figure that was down from 228,000 earlier in the day. With files from the Associated Press http://www.cbc.ca/world/story/2008/07/25/dolly.html How did the electricity leave the water? And why would it not prefer to run through the cable? If he had bumped his head on the power line I could understand it. ******* Point 2: How does glowballs increase hurricane intensities? It's my impression that the cause of hurricanes is calm winds llowing the extreme cold aloft to react with the unusually warm patch at sea level. Overall the heat parcel is cool not warm. The result in an hurricane passing is that the sea surface temperature is cooler not warmer. ******* Finally: When wind acts on the surface of the sea it is said to raise large swells that can reach over 40 feet. Some have claimed there are occasional 100 feet high waves. Be that last as it may, how does the wind manage to stop the water layers shearing for long enough to affect more than a few millimetres at a time? |
#2
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Sam Wormley wrote:
Weatherlawyer wrote: How did this man die? Dolly leaves 1 dead in Mexico, thousands without electricity Last Updated: Friday, July 25, 2008 | 10:19 AM ET Comments2Recommend7 CBC News One man in Mexico is dead in the aftermath of Hurricane Dolly — now downgraded to a tropical depression — and thousands remained without power Friday. The man was electrocuted in Matamoros on Wednesday after stepping on a power line while walking in waist-deep water, say emergency officials. o Current flows through all the conductors (to ground) Close Sam, It is more like this: Cureent flows through the "path of least resistance" to ground. The man, having lots more electrolytes than the water surrounding him, became the "path of least resistance" instead of the water itself the electric line was already trying to ground itself in. ![]() -- James M Driscoll Jr Creator of the Clock Malfunction Theory Spaceman |
#3
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On Jul 26, 4:43 pm, "Spaceman"
wrote: Sam Wormley wrote: Weatherlawyer wrote: One man in Mexico is dead in the aftermath of Hurricane Dolly The man was electrocuted in Matamoros on Wednesday after stepping on a power line while walking in waist-deep water, say emergency officials. Current flows through all the conductors (to ground) Current flows through the "path of least resistance" to ground. The man, having lots more electrolytes than the water surrounding him, became the "path of least resistance" instead of the water itself the electric line was already trying to ground itself in. If he was barefooted and plugged into the mains it would still have to pass from the line (which would be earthing anyway) to the water, to the man, to his heart. I was in a flood once where the transformer for the place was half under water. There was electricity shorting through the water as the streets were plugged into the national Grid until they switched the transformer station off.. Maybe it was only single phase, 240 volts or may it was the whole 9 yards. But it only felt like I was wading through weeds. And I never felt a thing above the waterline. |
#4
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Weatherlawyer wrote:
On Jul 26, 4:43 pm, "Spaceman" wrote: Sam Wormley wrote: Weatherlawyer wrote: One man in Mexico is dead in the aftermath of Hurricane Dolly The man was electrocuted in Matamoros on Wednesday after stepping on a power line while walking in waist-deep water, say emergency officials. Current flows through all the conductors (to ground) Current flows through the "path of least resistance" to ground. The man, having lots more electrolytes than the water surrounding him, became the "path of least resistance" instead of the water itself the electric line was already trying to ground itself in. If he was barefooted and plugged into the mains it would still have to pass from the line (which would be earthing anyway) to the water, to the man, to his heart. He stepped on the power and was also stepping on the ground The electricity used his entire body as the conductor. Up one leg, and because electricity would rather flow instead of taking sharp corners at such speed, it went through his heart also and the down the other leg. (It more than likely also bounced all around the entire body including even his arms for a bit.) Sadly. ![]() I was in a flood once where the transformer for the place was half under water. There was electricity shorting through the water as the streets were plugged into the national Grid until they switched the transformer station off.. Maybe it was only single phase, 240 volts or may it was the whole 9 yards. But it only felt like I was wading through weeds. And I never felt a thing above the waterline. He still had to be the "better conductor" for the electricity to pick him instead of the water. As I said. Electricity flows through the "least resistive" path. If he was not a better conductor (more than likely from electrolytes) than the water itself was, he would not have been shocked of would not get near as much shock as he did get. -- James M Driscoll Jr Creator of the Clock Malfunction Theory Spaceman |
#5
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On Jul 26, 6:36 pm, "Spaceman"
wrote: Weatherlawyer wrote: On Jul 26, 4:43 pm, "Spaceman" wrote: Sam Wormley wrote: Weatherlawyer wrote: One man in Mexico is dead in the aftermath of Hurricane Dolly The man was electrocuted in Matamoros on Wednesday after stepping on a power line while walking in waist-deep water, say emergency officials. Current flows through all the conductors (to ground) Current flows through the "path of least resistance" to ground. The man, having lots more electrolytes than the water surrounding him, became the "path of least resistance" instead of the water itself the electric line was already trying to ground itself in. If he was barefooted and plugged into the mains it would still have to pass from the line (which would be earthing anyway) to the water, to the man, to his heart. He stepped on the power and was also stepping on the ground The electricity used his entire body as the conductor. Up one leg, and because electricity would rather flow instead of taking sharp corners at such speed, it went through his heart also and the down the other leg. (It more than likely also bounced all around the entire body including even his arms for a bit.) Sadly. ![]() I was in a flood once where the transformer for the place was half under water. There was electricity shorting through the water as the streets were plugged into the national Grid until they switched the transformer station off.. Maybe it was only single phase, 240 volts or may it was the whole 9 yards. But it only felt like I was wading through weeds. And I never felt a thing above the waterline. He still had to be the "better conductor" for the electricity to pick him instead of the water. As I said. Electricity flows through the "least resistive" path. If he was not a better conductor (more than likely from electrolytes) than the water itself was, he would not have been shocked of would not get near as much shock as he did get. People are not that good at conducting electricity and even if that particular example of the species was better at conducting it than a flood full of water, he'd not be better than that of the original cable. So where was this superconductor diverting the current to? |
#6
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Weatherlawyer wrote:
On Jul 26, 6:36 pm, "Spaceman" wrote: Weatherlawyer wrote: On Jul 26, 4:43 pm, "Spaceman" wrote: Sam Wormley wrote: Weatherlawyer wrote: One man in Mexico is dead in the aftermath of Hurricane Dolly The man was electrocuted in Matamoros on Wednesday after stepping on a power line while walking in waist-deep water, say emergency officials. Current flows through all the conductors (to ground) Current flows through the "path of least resistance" to ground. The man, having lots more electrolytes than the water surrounding him, became the "path of least resistance" instead of the water itself the electric line was already trying to ground itself in. If he was barefooted and plugged into the mains it would still have to pass from the line (which would be earthing anyway) to the water, to the man, to his heart. He stepped on the power and was also stepping on the ground The electricity used his entire body as the conductor. Up one leg, and because electricity would rather flow instead of taking sharp corners at such speed, it went through his heart also and the down the other leg. (It more than likely also bounced all around the entire body including even his arms for a bit.) Sadly. ![]() I was in a flood once where the transformer for the place was half under water. There was electricity shorting through the water as the streets were plugged into the national Grid until they switched the transformer station off.. Maybe it was only single phase, 240 volts or may it was the whole 9 yards. But it only felt like I was wading through weeds. And I never felt a thing above the waterline. He still had to be the "better conductor" for the electricity to pick him instead of the water. As I said. Electricity flows through the "least resistive" path. If he was not a better conductor (more than likely from electrolytes) than the water itself was, he would not have been shocked of would not get near as much shock as he did get. People are not that good at conducting electricity and even if that particular example of the species was better at conducting it than a flood full of water, he'd not be better than that of the original cable. So where was this superconductor diverting the current to? If people are not that good of a conductor, then he should not have been shocked and the water should have been a better path to begin with. And where you get "supercunductor at all" is a good mystery. and I told you, if he was walking, both feet touched the ground. One was the contact to the wire, and one was the "ground". The cable was either to long of a path or too resistive. (as in maybe even broken with no path at all "yet".) -- James M Driscoll Jr Creator of the Clock Malfunction Theory Spaceman |
#7
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Sam Wormley wrote:
Weatherlawyer wrote: People are not that good at conducting electricity and even if that particular example of the species was better at conducting it than a flood full of water, he'd not be better than that of the original cable. So where was this superconductor diverting the current to? Current doesn't just flow trough the path with the lowest resistance... it flows through all the conductors available to it. http://people.sinclair.edu/nickreede...Resistors3.gif man, water, wire.... True, my bad ![]() -- James M Driscoll Jr Creator of the Clock Malfunction Theory Spaceman |
#8
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On Jul 26, 10:30 am, Weatherlawyer wrote:
How does glowballs increase hurricane intensities? If the cause of hurricanes is calm winds allowing the extreme cold aloft to react with the unusually warm patch at sea level. Overall the heat parcel is cool not warm. The result in an hurricane passing is that the sea surface temperature is cooler not warmer. This heat flow brings to mind the problem of vorticity. As a general rule forces in fields tend to level out as soon as they can -it's why things short circuit, so heat tends to dissipate ASAP I imagine. As it is held in a medium that is infinitely divisable, it is easy to wreck a flowing stream of it. On the other hand it would be a medium that would find stream lines easily because of that. And once it had decided the rotation process... How would it do that? Is it possible that hot air is finding straight lines or whatever it can in the geodesics to outlet the heat as if it is obeying the lose it fast rule? Anyway, as it shears apart, the "bend it like Beckam" problem of small spheres comes into play. Ballistics. You can just get hold of a footbal and give it a kick slightly off centre or you can look deeper he http://en.wikipedia.org/wiki/Riemannian_geometry Pressure in the front of a rising bubble of air is greater than the pressure behind it. And presumably the same is true of bubbles of cold air falling through warmer air: A fluid stream exerts a drag force. One-third is transmitted to a sphere by shear stresses near the equator, and the remaining two-thirds are due to the pressure being higher at the front of the sphere than at the rear. As the velocity increases and the boundary layer decreases in thickness it becomes less and less important compared with the effect of the pressure difference. (But can pressure differences have pressure differences? Or to put it anothe way how can air flow past air?) The principles of dimensional analysis can be invoked to show that, provided the compressibility of the fluid is irrelevant (i.e., provided the flow velocity is well below the speed of sound), the drag coefficient must be some universal function of another dimensionless quantity known as the Reynolds number. Fortunately this only applies to thunder. Unfortunately there is an awful lot of thunder involved. |
#9
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On Jul 26, 9:43 pm, Weatherlawyer wrote:
(But can pressure differences have pressure differences? Or to put it another way how can air flow past air?) I have been trying to convince myself that the reasoning behind meteorlogical phenomena is the correct one and that the vastness of my ignorance is coupling with my inability to learn in order to thwart my understanding of "Cyclogenesis": http://en.wikipedia.org/wiki/Cyclogenesis But all I can find are observations and not physical principles. Why are cyclones warm cored if the cause is heat rising? Logic would suggest that cold air rushing through the ever expanding column would be confined to a louche centre. At best it would be a turbid flow. Vorticity should never occur and if it did, not be able to contain expanding air. Not only does it defy logic but it manages to convey this defiance at a rate of 10 to 15 knots. Not only is this amazing miracle of impossibilities transferred from A to B but it is a regular occurrence and predictable. The motion is ALWAYS in the same direction and wind speeds can reach hundreds of miles an hour in them. NOT JUST UP AND DOWN. The wind speeds recorded as data are the lateral ones. Down draughts and updraughts are not even considered in meteorology as far as I can see. Am I being silly here? Is there something so triflingly obvious that needs no explanation, that I can't see owing to being too thick? |
#10
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On Jul 26, 9:43 pm, Weatherlawyer wrote:
The principles of dimensional analysis can be invoked to show that, provided the compressibility of the fluid is irrelevant (i.e.,provided the flow velocity is well below the speed of sound) the drag coefficient must be some universal function of another dimensionless quantity known as the Reynolds number. That was more or less a quote from The Encyclopedia Britannica. And it was really referring to islands in the stream or more importantly, aviation. Fortunately this only applies to thunder. That was in reference to "...the drag coefficient must be some universal function..." where it breaks down. The theory holds good for slow speeds, apparently. Unfortunately there is an awful lot of thunder involved. And was me trying to be clever. |
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