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Comment Re:Prevention sounds easy... (Score 1) 361

Capacitors in series with transformers == bad idea. Such thing converts power grid into the antenna and resonant circuit tuned to some frequency, and that is bad. Transformers usually do not melt if they have proper fuses and excess voltage discharge devices.

This is how shutdown of the HV power line looks like http://www.youtube.com/watch?v=mpb0JTL_Ec0&feature=channel

I hope that warning can arrive on time, high voltage switches and generators must be prepared for switching off / shutdown.

Comment Re:Nuclear EMP, how is this diffrent? (Score 1) 361

Why is this problem and solution different from say EMP's from nuclear blasts?

Because frequency, intensity and duration of EMP might be different. It probably changes nothing, as it will damage the same systems.

How are the solutions and protection different also?

They might be the same. The frequency of solar storm induced EM pulse should be much lower and the pulse would affect the whole planet.

Would things like Faraday cages protect critical infrastructure?

They could protect all except for power lines. For protecting power lines we need fuse breakers and excess voltage discharge devices, and a lot of effort to repair the damaged equipment after the EMP.

Comment Re:capacitors (Score 1) 361

What about putting some large capacitors in series with the transformers?

Are you serious? The capacitors could easily end up larger than transformers that they are protecting. Even if someone would try to use the capacitors, the resulting system would act like gigantic antenna tuned to some frequency. If the EMP or EM storm pulse frequency is close enough to the resonant frequency of the transformer/capacitor/power-line large amount of EM energy will end up in power distribution system as a power spike, which is not good at all.

Comment Re:Pacemakers? (Score 1) 361

As a cyborg (literally, if technically) I have to wonder what such a solar electrical storm would do to implanted electronic medical devices, such as my pacemaker.

I don't think that standard EM storm could damage your pacemaker directly. However, electric energy tends to accumulate in power grid and might burst as local EM discharge, which if is close enough, can damage your peacemaker. An lightning strike is a natural EM discharge. I'm sure it could damage an pacemaker if discharge is close enough.
Bottom line: Wear your EM filed suppressor shirt all time.

Comment Re:Doomsday situation (Score 1) 361

I thought we had circuit breakers to prevent these problems.

You don't need a closed circuit to fry a small coil with a big enough inductive load.

No, you don't, but inductance of the transformer coil will prevent the surge current form burning out the wire. The resulted voltage spike is conducted via discharge path. Transformers are usually fairly protected against surges. Sadly, power lines are poorly protected, I guess they are bound to fail.

But aren't these things fairly well shielded anyway? I can't imagine a big EMP pulse getting through a zinc wrapper (galvanised steel can, isn't it?) and then I'd think you're dealing with some fairly heavy duty windings. Power line transformers survive lightning strikes sometimes, don't they?

Most transformers are self shielded by design. They do not relay on external shielding / Faraday cage. Yes, windings in most power transformers can survive lightning strikes, but that is mostly because of external protection.

Comment Re:lemme get this straight (Score 1) 430

Why? What you've done is given me an opinion, without trying to justify it. Not useful in an argument, if you're arguing with me, I know you're opinion is different from mine!

Because link != data or file. Wikileaks posted a list of the internet sites to be censored, and it was raided because of it, not because of the child porn. The list was availble to the public, police could just download it. Looks like someone wants to close Wikileaks.de at any cost.

So people become less likely to produce it in future, that's simple economics. Additionally, if I can access all the child porn I want, it probably makes me think "this isn't so bad".

Filtering is not the solution to the problem, it is like turning head away from it. Filtering does not strike the crime, it strikes around it. I was expecting Interpol raid on the foul internet server containing child porn, not the Wikileaks.de site.

I'll make an example. Lets assume that I have link on my homepage pointing to the site that explains how to make explosives or an A-bomb.
Does that makes me a terrorist?
Should that site be filtered out?
Should my home be raided because of the link?

There is big difference between thinking, saying and doing. Sadly today saying seems to be equal to doing.

I just wonder how long before thinking would become equal to saying.

Comment Re:lemme get this straight (Score 1) 430

Posting a link can't be disgusting, or wrong or bad. It is the content that is foul not the link.

Censoring achieves nothing. The foul site is still there, just not available to everyone. Also censoring makes more censoring to appear normal everyday activity, a bad legacy for the generations to come.

Comment Re:I can see their logic (Score 1) 883

If it's almost free, then why don't you do it? Surely you can afford to implement an almost free energy generation system.

I'll tell you why: Land, infrastructure, maintenance, delivery, and research are not cheap. You can't afford to do it. Shell has decided it can't, either.

Wrong. Here is how capitalism works:

A) You made it. You can use it, but if you sell it You'll have the money.
B) You made it. If you sell it today, you'll have money today, but not tomorrow. You need to make another one to sell it tomorrow to have money tomorrow too.
C) You made it. You can sell it, but if you rent it you'll have money today and tomorrow and day after tomorrow and so on... so why selling it?

I think Shell is moving From B to C as much modern production model with their biofuel / carbon sequestration. Also staying with biofuel means no surge investment in infrastructure, only gradual investing in carbon sequestration / biofuel production.

Comment Re:That was no bat... (Score 1) 422

It did look like a piece of trash, but it was not micro sized. I was less than meter long while hanging on the power line, at least it seemed that long while I was looking at it form the ground. Somehow I resisted the urge to hit it with the rock, I knew what it was the first moment I saw it.

I saw it months before or after the article mentioned it, I can't remember now. It just reminds me how close US military base Camp Bondsteel is from my hometown.

So they meant US Air Force.

Comment Re:At the same time, European Union bans incandesc (Score 1) 182

I have modified this project to make bike light that uses single 1.5V battery, four white LEDs in the front light and one red LED in the black connected in series. It can work on 1.2V Ni-MH battery too, it is cheap and easy to build. I have used E core transformer form broken mobile phone charger instead of ferrite bead. The next version I'll build will use single Li-Ion cell and will have integrated recharger.

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