Back to Basics: What’s the deal with Magnets?

I consider myself a fairly sharp guy. I’ve made a living off of being a scientist for over 20 years now, and I have at least a passing knowledge of most scientific fields outside my area. But I feel like I should be able to do something other than babble incoherently when asked about magnets. They baffle me – there, I said it. So what do I do about it? Write a Hackaday post, naturally – chances are I’m not the only one with cryptomagnetonescience, even if I just made that term up. Maybe if we walk through the basics together, it’ll do us both some good understanding this fundamental and mysterious force of nature.

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Cobalt RaQ Retrofit Help Geek Up Your Entertainment Center


Even network engineers who toil away in hot server rooms (which aren’t actually all that hot because they’re well climate controlled) deserve nice things. That’s why Cobalt came out with these gorgeous front bezels for their rack mounted equipment… around twenty years ago. [Geekmansworld] is reviving the look, but he’s not hiding it away in a server rack. He scrapped the guts and used the front bezel and controls as part of his media server.

His first new addition to the case was a pair of hard drives which connect to an eSATA hub also stored in the enclosure. He buttoned it up and gave it a test run. Everything worked smoothly and he hopes that it will continue that way without overheating when the summer rolls around again.

Of course a dead front bezel is no fun so he cut off the portion of the original circuit board which hosts the buttons seen on the right. These buttons now connect to a U-HID board which turns the button presses into mouse or keyboard inputs using a USB connection. The original display was swapped out for a backlit character LCD. The LEDs to the left are a refit which turns the status indicators into a VU-Meter. See the entire thing at work after the break.

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