Naked Science Forum
General Science => General Science => Topic started by: paulat on 04/01/2007 04:25:49
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Someone once told me that you should always keep your feet together when outdoors in a thunderstorm. Were they pulling my leg, so to speak, or is there a scientific grain of truth to this?
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Only if you're standing on your head & don't want to get your underpants wet! [:D]
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LOL!!
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Someone once told me that you should always keep your feet together when outdoors in a thunderstorm.
Yes, because if you are struck between the legs you will feel a tremendous *****!
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WELCOME, FuzzyUK
There are now more of us "strange" people on the forum.
I might have said:
"it is always a good idea for women to keep their legs together outside because there are so many little critters you might drive to distraction by flashing them."
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Hi FuzzyUK...welcome! LOL JimBob...you are so cute!!!
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ah: feet together. I thought you meant something else, what with the subject title being somewhat differently worded!
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If you stood on a live electrical cable with feet apart there would be a large potential difference, whereas if you stood with your feet together it would be a smaller potential difference. its the p.d. that kills you. electricity generally travels the path of least resistance into the ground, so lightening would presumably kill you when it went past your heart.
In this case would the best thing to be to lay on the ground in a thunderstorm?
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I would say keep your legs closed, that burning sensation between the legs is not nice........ or so I've been told
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Let me tell you !! LOL ! It doesn't matter weather your legs are spread or together or not.. If you are in the right place with the right conditions, you are going down if that lightening hits you.. I have a cousin whom lives in New Mexico who has been struck by lightening several times.. I can remember the first time she was at a big kegger party she was about 17 years old. It was at night and she was Dancing in the back of a pickup truck in the middle of a thunderstorm. I don't know why, but the lightenstruck her and knocked her many feet backwards over the top of the truck .. They rushed her to the hospital, but she made it.. and survived, but she was hit two more times over the next couple years and Is still alive to tel of it! She is very storm shy at this point and avoids being close to windows or outside during storms.. Very lucky girl!!
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If you stood on a live electrical cable with feet apart there would be a large potential difference, whereas if you stood with your feet together it would be a smaller potential difference. its the p.d. that kills you. electricity generally travels the path of least resistance into the ground, so lightening would presumably kill you when it went past your heart.
Hi Fishytails,
It's not quite as clear as that. To quote a saying, 'It's volts that jolts, but mils that kills'. You could have an enormous big static charge whop you but the charge might only deliver a low and limited current. It's essentially a high current that can kill you even if the applied voltage is low. Anything over some 30mA flowing through you can stop your heart.
I once stepped over an electric fence in a field thinking it was inert only to get clouted on a certain part of my anatomy with a crucially timed electronically generated high voltage pulse. I survived because the current was limited, but it put me off the idea of romantic ventures in the open for good. I also feel uncomfortable if I happen to hear Jerry Lee Lewis on the radio singing, 'Great Balls of Fire' for some reason.
Fuzzy
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This claim, that you should keep your legs together in a thunderstorm, isn't merely sage advice aimed at the inhabitants of Essex. I think it stems from farmers finding livestock dead in fields following storms. The animals chiefly affected tended to have had longer bodies, such as cows and horses.
The theory goes that when lightning strikes the ground the current flows away from the strike site across the surface down an electrical gradient. You can think of this as rather like a ball rolling down a hill where the ball is the current and the hill is the electrical gradient or "potential difference".
If you are standing on that metaphorical hill, with one leg higher up the hill than the other, then one leg is at a higher electrical potential than the other. This potential difference causes a current to flow through your body. If it's sufficiently large, it can kill you.
But if you stand with your legs together, both legs are at the same electrical potential and so very little current will flow. Cows don't know this, and also find it anatomically very challenging, so they turn into toast...or should that be roast beef?
(Do note, however, that if the lightning hits you directly, unleashing the full force of its 1-10 billion joule strike at a current of about 30,000 amps, the position your legs are in will be the least of your worries! This situation is usually universally fatal).
Chris
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Let me tell you !! LOL ! It doesn't matter weather your legs are spread or together or not.. If you are in the right place with the right conditions, you are going down if that lightening hits you.. I have a cousin whom lives in New Mexico who has been struck by lightening several times.. I can remember the first time she was at a big kegger party she was about 17 years old. It was at night and she was Dancing in the back of a pickup truck in the middle of a thunderstorm. I don't know why, but the lightenstruck her and knocked her many feet backwards over the top of the truck .. They rushed her to the hospital, but she made it.. and survived, but she was hit two more times over the next couple years and Is still alive to tel of it! She is very storm shy at this point and avoids being close to windows or outside during storms.. Very lucky girl!!
Can humans build up resistance against thunderbolt? Just like in the legend where there's someone who built resistance against poison?
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I think the idea that you can get pregnant by standing in the rain is an urban myth, possibly put about by the sort of people who find wellington boots erotic. Which brings us neatly back to Essex farmers, perhaps, but you'd think they would know better.
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Can humans build up resistance against thunderbolt? Just like in the legend where there's someone who built resistance against poison?
It depends what you mean by the "just like in the legend ".
If you mean "not actually really" then yes.
Otherwise, no.
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Can humans build up resistance against thunderbolt? Just like in the legend where there's someone who built resistance against poison?
You cannot build up a resistance to lightening, but you can build up a resistance to some types of poisons.
The acquisition of human immunity against snake venom is ancient (from around 60 CE, Psylli tribe). Research into development of vaccines that will lead to immunity is ongoing. Bill Haast, owner and director of the Miami Serpentarium, injected himself with snake venom during most of his adult life, in an effort to build up an immunity to a broad array of venomous snakes, in a practice known as mithridatism. Haast lived to age 100, and survived a reported 172 snake bites. He donated his blood to be used in treating snake-bite victims when a suitable antivenom was not available. More than 20 so-treated individuals recovered.[41][42][43] Amateur researcher Tim Friede also lets venomous snakes bite him in the hopes of a vaccine against snake venom being developed, and has survived over 160 bites from different species as of January 2016.[44]
Source: https://en.m.wikipedia.org/wiki/Snake_venom (https://en.m.wikipedia.org/wiki/Snake_venom)
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By "legend" I meant just like in the example above, where someone would take up poisons in small doses everyday so that his body built resistance to poison.
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https://www.thefreedictionary.com/Cumulative+poison
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Here's another option: don't put 2 feet on the ground at the same time: