<html><head></head><body><div>The (bs) EMP bags made me think (usually a good thing!) about circuit design (a field I'm not good in).</div><div><br></div><div>For a spacecraft, the obvious choice for ground plane is the craft framework itself. Relative to the typical power loads in the various modules on ISS, the frame is a "near infinite supply or sink of electrons".</div><div><br></div><div>But space weather is nasty. Solar flares are huge problems. How is a system designed to withstand an EM flux greater than the typical power throughput? On the ground, we use fat braided copper wires and deeply buried rods. That's not an option on a satellite. Thick skin can shield. What else?</div><div><span><pre><pre>-- <br></pre>James P. Kinney III
Every time you stop a school, you will have to build a jail. What you
gain at one end you lose at the other. It's like feeding a dog on his
own tail. It won't fatten the dog.
- Speech 11/23/1900 Mark Twain
http://heretothereideas.blogspot.com/
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