newbie inquiry:what kills

Keith Messent

I think that there is a difference between those who have been struck
directly by a lightning flash (now deceased!) and those who have been in
the close vicinity of a strike!  I find it just about impossible to
allow that anyone directly struck and burned by a discharge could
possibly survive.  As I reported earlier, it is generally accepted by
Health & Safety authorities that 10 Joules (via PD >230V) through a
vital organ would be lethal!
Keith Messent, Skipton, UK

Show quoted text

----- Original Message -----
From: <adityanewalkar@...>
To: <Electronics_101@...>
Sent: Wednesday, 31 October, 2001 07:17 AM
Subject: [Electronics_101] Re: newbie inquiry:what kills

Think about lightning.  Lightning has millions (10^6) of amperes of
current, several millions of volts of voltage, (sometimes measuring
650 Coulumbs of charge) ... still there are quite a lot of people who
turn up alive even after being hit by lightning.  I think that is
becoz of the fraction of a second the charge passes through the body
of the person.

[email protected]

#1092

Hi,

So it takes power, and probably energy, i.e. power times time to dowork and
certainly to kill someone. 
Think about lightning.  Lightning has millions (10^6) of amperes of
current, several millions of volts of voltage, (sometimes measuring
650 Coulumbs of charge) ... still there are quite a lot of people who
turn up alive even after being hit by lightning.  I think that is
becoz of the fraction of a second the charge passes through the body
of the person.

regds,
Aditya

Jonathan Luthje

#1096

Or because the charge passed "through" the outside of their body or because
they were standing on some sort of insulated surface (i.e. rubber soled
shoes) or for a number of other reasons. If the WHOLE amount of energy was
dissapated through the single person, then it would probably cause them to
litterally vaporise ... if I had a few minutes I would do the maths (i.e.
5,000,000V @ 5,000,000 Amperes = 25,000,000 W = enough energy to boil a LOT
of water = say 80 litres worth in a split second ....

The great majority of ex-people who have been struck by lightning are dead
(or so I'm led to believe).


Jon

Show quoted text

----- Original Message -----
From: <adityanewalkar@...>
To: <Electronics_101@...>
Sent: Wednesday, October 31, 2001 5:17 PM
Subject: [Electronics_101] Re: newbie inquiry:what kills

Hi,

So it takes power, and probably energy, i.e. power times time to dowork and
certainly to kill someone.
Think about lightning.  Lightning has millions (10^6) of amperes of
current, several millions of volts of voltage, (sometimes measuring
650 Coulumbs of charge) ... still there are quite a lot of people who
turn up alive even after being hit by lightning.  I think that is
becoz of the fraction of a second the charge passes through the body
of the person.

regds,
Aditya

To unsubscribe from this group, send an email to:
Electronics_101-unsubscribe@...

Your use of Yahoo! Groups is subject to 

angtengchat

#1141

fully agreed.

Show quoted text

----- Original Message -----
From: <adityanewalkar@...>
To: <Electronics_101@...>
Sent: Wednesday, October 31, 2001 3:17 PM
Subject: [Electronics_101] Re: newbie inquiry:what kills

Hi,

So it takes power, and probably energy, i.e. power times time to dowork and
certainly to kill someone.
Think about lightning.  Lightning has millions (10^6) of amperes of
current, several millions of volts of voltage, (sometimes measuring
650 Coulumbs of charge) ... still there are quite a lot of people who
turn up alive even after being hit by lightning.  I think that is
becoz of the fraction of a second the charge passes through the body
of the person.

regds,
Aditya

To unsubscribe from this group, send an email to:
Electronics_101-unsubscribe@...

Your use of Yahoo! Groups is subject to 

_________________________________________________________
Do You Yahoo!?
Get your free @yahoo.com address at 

开云体育

newbie inquiry:what kills