Faraday Blankets

[Carrot Cruncher]

A chap on another site managed to find a decent site with some good info about EMP and its effects that looks fairly well researched. I'm not saying that all the info is fact as I dont fully understand it all, but it seems quite good to me.

As with most of these things the best we can do is read all the info and make our own minds up

Here is the link to the original article http://www.northernmichigansolar.com/su ... rotection/

[hobo]

Good link CC. Thanks. Hobo.

[the-gnole]

Great link, very interesting info, no need for a lot of the bumpf we here about by people who like to make a drama out of a crisis, I guess.

[Carrot Cruncher]

There's the problem, you think it is good info in that link but the information in that particular link I posted above got ripped apart by a seemingly knowledgable poster elsewhere as over hyped and the precautions advised as ineffective. Unfortunately, unless we have any scientists in the house who can give the definitive answer all we can do is read it all and make our own minds up..... because I dont think anyone (on the sites i've viewed at least) can prove that their opinion is better or more valid than anyone elses

CC

[the-gnole]

But on the internet we can all be experts because we read it it must be true.

It isn't any good just going for the first answers we find on the searches we do because they are only there because the amount of times they are linked to by "experts".

If you start further down the list it is possible to find some real gems of information.

If it is said often enough people will believe it is the truth, sadly that isn't always the truth.

I tend to go to page five and then ten, then fifteen to find more accurate information.

[Carrot Cruncher]

I tend to go to page five and then ten, then fifteen to find more accurate information

But the article on page 15 may just be better and more articulate BS....not necessarily any more valid

[diamond lil]

BS is one thing there's tons of on the internet

[the-gnole]

True Carrot Cruncher, but, that is usually just the starting point of any research, after finding the initial information on the internet it is a wise person who then goes at least one step further and look for more information and links to the information I had found.

I certainly would avoid any of the initial links that took me to some of the internet blogs/forums as the first step, but places that are more those with peer reviewed info or a credible source if possible.

[southernPrepper]

Or you could ask an electrical engineer?

What you are trying to do is protect electronic equipment from a massive spike of current that may be generated by a passing electro-magnetic field sourced from the Sun.

A current will be induced in any conductor; there is nothing you can do to stop that unless you divert the field with an active magnetic shield. That is something you can't do. CERN can; you can't. Also if you ever faced that kind of EMP then there will be other things to worry about besides the TV

Besides being directly proportional to flux of the field, the size of the current is proportional to the length of the conductor so systems like the Nation Grid and the telephone network could suffer massive spikes. Modern sub-stations will trip if this happens but if you are worried just unplug everything and it's isolated. This is what happened in Canada in 1989 but the system was back up within 9 hours.

Fibre optic cables are immune as are all other non-conductors.

This stuff is mostly covered in any half-decent Physics text book but beware! anything beyond the basic theory will require you to remember your differential calculus. Suffice to say that your average internet forum numpty has no idea how to protect you are yours form a solar EMP and any advice they give must be filed under 'suspect'.

BTW, I'm not an electrical engineer and I am just another forum numpty but I did study Physics to A level many years ago. I also asked an electrical engineer about this once and his basic response, when he stopped laughing, was 'don't bother'.

As with a lot of stuff you need to know what to search for in order to find further information. Try searching for 'faraday's law' or 'induced emf'. If you end up at sites specialising in physics (especially if the URL ends in .ac.uk, .edu or .sch.uk) then you can usually trust it. If the site URL ends in .com and they want to sell you a thousand yards of mylar then I suggest you can't trust it.

[scoobie]

Nicely put!

I'm now having flashbacks to A-level physics, so thanks for that