Self Erecting Structures clip

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[DigGil1]

@usmcboyer you may use robots to build robots. (reprap)

[usmcboyer]

So... there will be no jobs unless you build or maintain robots?

[Juefawn]

We need a better utilization of the INTER-NET. We could use it for approving intentions from the collective democracy, like an on-line congress of sorts.

[lauris15151]

@levogiro what u r saying is totally wright, the thing is my first comment was what would if solar spots would cause electro magnetic pulses on earth and all electronics would fail who would fix it.

[levogiro]

@lauris15151

... anyway, in any case, Faraday cages in consumer products are not really to protect them from EMP. Sony really doesn't give a crap if your DVD is fried by a high atmosphere nuclear burst, but they care about FCC regulations, which dictate that the apparatuses they make have to comply with certain restrictions regarding electromagnetic emission, in order to avoid interference with other devices. That's the why of FCs in consumer products. A well designed chassis could make the job.

[levogiro]

@lauris15151

why so obsessed with Faraday's cages? o.O? In any case... those diodes you mention are mainly for protection from ESD (Electrostatic Discharge). And yes, its true that also reduces the susceptibility to damages due to EMP, nevertheless they doesn't make them totally immune. Only thing that make an electronic equipment REALLY immune to EMP is a Faraday cage, eliminating ALL field inside it, which could result from EXTERNAL FIELD.

[lauris15151]

@levogiro i think you should research on the ways of protecting the devise from EMP. because military has used these diode like chips that prevent the surges from damaging the electrical equipment, Putting every single piece of wire and electronic devices in Faraday cages is stupid and should not be done as its not efficient and so a lot of material would be wasted.

[levogiro]

@lauris15151

Totally agree in that. It's not the cheapest of metals. But that's the result of a set of market and technical conditions that can be regarded as an historical accident. As soon as a good energy source appears, aluminium would become cheaper. I really don't know if it's the best option for Faraday cages, should make a little research about that. But I guess that is a good compromise solution having in mind that is a pretty good conductor, and still a lot cheaper that copper.

Hugs!

[lauris15151]

@levogiro true, still aluminum is expensive product compared to other materials like plastic etc..and this is coz of the difficulty of extracting it from compounds, it can be the most abundant material but still it must be extracted and in this case it requires a lot of energy thats why its abundant but expensive, and thats why its not good metal to make faraday cage for every single electronic device on the face of the planet..

[levogiro]

@lauris15151 to have inexpensive aluminium. Its abundance will become a secondary factor determining its value, because compounds of aluminium are ubiquitous in earths crust (being a light metal, it has tended to concentrate in the crust, as heavy metals has tended to concentrate below it).

Regards!

PD: Interesting discusion btw :)