Breaking News
Comments
Newest First | Oldest First | Threaded View
Page 1 / 3   >   >>
WKetel
User Rank
Rookie
re: How to cripple a country: Electromagnetic pulse attacks
WKetel   10/27/2012 10:21:10 PM
NO RATINGS
So just exactly what is the suggested defense mechanism? And, for that matter, just what is the anticipated failure mechanism? It is already given that we have defense against lightning strikes, which happen all of the time. So how about some description of the exact actions of this menace. OR, is it some "Phantom Menace" that we must defend against, similar to that Y2K event that took out all of our computerized every-things. OR perhaps it didn't perform quite as advertised.

jaybus0
User Rank
CEO
re: How to cripple a country: Electromagnetic pulse attacks
jaybus0   10/20/2012 1:41:00 PM
NO RATINGS
Indeed. In August 1859 a large CME caused a very bright aurora that "turned night into day" in Panama. Telegraph communications were impossible accross America and Europe for nearly two days. Sooner or later, we WILL again take a direct hit from a large CME. It wasn't a great diruption in 1859, when telegraph machines used hand operated mechanical switches, but it will be a huge disruption now.

SouthernKiwi
User Rank
Rookie
re: How to cripple a country: Electromagnetic pulse attacks
SouthernKiwi   10/20/2012 12:53:25 AM
NO RATINGS
Of particular concern for the grid is the large transformers on it. Lead times for these right now are in the region of months - and we are not facing the grid being down at the manufacturing plants concerned. Imagine an event happening early January taking out 20 of these across the USA or Europe. I have a 5kW generator for the house that runs of the gas utility - who knows if that would still be able to be supplied though?

DigitalRacer
User Rank
Rookie
re: How to cripple a country: Electromagnetic pulse attacks
DigitalRacer   10/19/2012 11:59:06 PM
NO RATINGS
The book "One Second After" will shock you like an EMP. Highly recommend it. http://www.amazon.com/One-Second-After-William-Forstchen/dp/0765317583

ccalvin
User Rank
Rookie
re: How to cripple a country: Electromagnetic pulse attacks
ccalvin   10/19/2012 11:49:22 PM
NO RATINGS
Be sure to read Frederick Brown's "The Waveries". "'Be Prepared' is the Boy Scout's Marching Song".

Bob.Gilbertson
User Rank
Rookie
re: How to cripple a country: Electromagnetic pulse attacks
Bob.Gilbertson   10/19/2012 6:43:08 PM
NO RATINGS
Unfortunately, a vulnerabilty is often ignored until an event happens. There is no economic incentive to design products for this even though IEC test standards exist http://www.emcs.org/acstrial/newsletters/winter08/hpem.html and test equipment is available http://www.apelc.com/system4.html. The EMP Commission Chairman has a good summary at http://images.military.com/DT/images/Graham.pdf

przemek
User Rank
Rookie
re: How to cripple a country: Electromagnetic pulse attacks
przemek   10/19/2012 3:14:45 PM
NO RATINGS
The EMP electric field is often specified as 30kV/m for times measured in seconds. This means that a typical USB port will see 300 Volts applied between GND and Vcc, because they are about 10mm apart. Will it survive this potential?

przemek
User Rank
Rookie
re: How to cripple a country: Electromagnetic pulse attacks
przemek   10/19/2012 2:20:00 PM
NO RATINGS
That sounds ominous: are you saying that with weapons you can take it from the people who did prepare and stock up? Don't be shy, say what you mean.

Etmax
User Rank
Rookie
re: How to cripple a country: Electromagnetic pulse attacks
Etmax   10/19/2012 12:19:11 AM
NO RATINGS
In the end, the mere fact that a solar event can do the same and is so much more likely suggests something should be done about it.

Etmax
User Rank
Rookie
re: How to cripple a country: Electromagnetic pulse attacks
Etmax   10/19/2012 12:13:55 AM
NO RATINGS
Remember that if you were say a terrorist on US soil that smuggled in a missile with a nuclear warhead, you would only need to launch it vertically to the correct height which would take a few minutes. In that time frame there could be no response from the military.

Page 1 / 3   >   >>


Flash Poll
EE Life
Frankenstein's Fix, Teardowns, Sideshows, Design Contests, Reader Content & More
Max Maxfield

MSGEQ7-Based DIY Audio Spectrum Analyzer: Testing
Max Maxfield
13 comments
In my previous column on this topic, we discussed the step-by-step construction of the first pass at a MSGEQ7-based DIY audio spectrum analyzer for use in my BADASS Display project. Of ...

Karen Field

June 2014 Cartoon Caption Winner
Karen Field
13 comments
Congratulations to "Wnderer" for submitting the winning caption for our June cartoon, after much heated conversation by our judges, given the plethora of great entries.

Jeremy Cook

Inspection Rejection: Why More Is Less in a Vision System
Jeremy Cook
3 comments
Albert Einstein has been quoted as saying, "Everything should be as simple as possible, but not simpler." I would never claim to have his level of insight -- or such an awesome head of ...

Jeremy Cook

Machine Fixes That Made Me Go 'DUH!'
Jeremy Cook
21 comments
As you can see in my bio at the end of this article, I work as a manufacturing engineer. One of my favorite things that happens on a Friday late in the afternoon is to hear my phone ring ...

Top Comments of the Week
Like Us on Facebook
EE Times on Twitter
EE Times Twitter Feed

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)