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I love recursion. As I’ve blogged about before, recursive implementations are usually the most maintainable way to solve inherently-recursive problems. That said, I do most of my programming in node.js and TypeScript, and I also love it when my code doesn’t overflow the stack. These things are sometimes in conflict.
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The AirThings Renew is supposed to look like a piece of high-end audio equipment, complete with audio-grade fabric on the side. I can see the resemblance, but it also looks like a PC tower sitting in the middle of the room. You can mount it on a wall, however, which could help with its aesthetic appeal.，详情可参考新收录的资料
I mounted the copper disk and TCXO up on my mill and started cutting. I probably could have made slightly faster progress if I swapped the 250 μm endmill out with a bigger one, say a 1.5 mm, but the sample was small enough I didn’t want to bother messing around with collets and wrenches to change tools. The machining only took a couple of minutes, making very slow gentle passes a few tens of μm deep before the edge looked to be about ready to punch through.
Фото: Alexey Malgavko / Reuters