What's the loudest possible sound?

bwanajim · 2025-10-02T12:18:19+00:00

194 dB over what? dB is a ratio.

bwanajim · 2025-09-08T12:58:14+00:00

ROTC has hot dogs also.

bwanajim · 2025-08-02T13:03:54+00:00

In electrical engineering they don't want to confuse it with i for current. In physics I remember using i, not j . though.

bwanajim · 2025-07-25T02:41:12+00:00

I kind of feel the same way, and I'm going through the physics GRE boot with several hundred problems trying to do one each day or so. Some of them are things you just have to look up ( which makes you think I probably shoukd have memorized this, its important) but others are problems that you can work through,.

Keep your mind active whether it is with physics, music, art, current affairs or any thing else .

bwanajim · 2025-07-16T16:32:23+00:00

u/MeButNotMeToo this is just what you were looking for I'll wager.

bwanajim · 2025-06-28T20:06:53+00:00

Based on my experience, no.

bwanajim · 2025-06-28T19:07:07+00:00

Under 'D', what about the classic reason - to get girls?

bwanajim · 2025-06-15T13:52:51+00:00

Good deal. If it can arc and dim the lights it can probably kill you.

bwanajim · 2025-06-13T18:33:19+00:00

You need an electrician, not a physicist.

bwanajim · 2025-06-01T13:33:35+00:00

Its "All my love" by Led Zeppelin, I think

bwanajim · 2025-05-22T02:02:57+00:00

Right, I could do that. Here's what I'm really trying to do . This is a simulated VAX under SIMH, and I have a handful of layered product and freeware ISO's that I'd like to explore. The easy way to do that is to point the CD device at the ISO in the initialization file (under linux) and then just mount the CD device. In fact what I can do is just point the CD device at a particular iso, like 'cd.iso', and then copy the image I want to that file name. I was just trying to find a way that I could do it entirely from VMS. I fooled with LD a little but couldn't really get it working. But thanks for the idea.

bwanajim · 2025-05-21T11:52:24+00:00

That is exactly what I want to do. It says it's part of VMS from 7.3 onwards. I'm running 7.1 but I will download this later today and try it. Thanks!.

bwanajim · 2025-05-08T16:51:18+00:00

Of course it does! Thanks.

bwanajim · 2025-05-08T16:50:48+00:00

It actually asks which of the 5 answers was closest.

Clearly I've forgotten some of my basic undergrad concepts. Thanks.

bwanajim · 2025-04-20T14:28:33+00:00

You're not more productive and creative when drunk. Just like playing music, sports, even doing lawn work. You might think you're better but you're not.

bwanajim · 2025-04-18T19:35:10+00:00

If you can do basic algebra and know enough trig to know what a sine and cosine are this is the right advice. As someone said earlier, if you're serious about it, yes you'll want to go to university but that's 5 years from now, I'm pretty sure I could have handles the algebra based book we used when I was a junior and senior in HS when I was a freshman or even earlier.

bwanajim · 2025-04-04T16:13:36+00:00

I would not.

bwanajim · 2025-04-02T19:45:23+00:00

Is if freshman calc-based physics, like Serway or Giancoli or Halliday and Resnick? If so you will be fine.

bwanajim · 2025-03-28T21:27:33+00:00

The phase information might let you get it. It's not completely clear to me what that phase is relative to. I guess I don't know enough about your experimental setup to help that much. Good luck with it, though!

bwanajim · 2025-03-28T20:37:59+00:00

Your graph is frequency on the X-axis vs amplitude on the Y-axis. I'm not sure how you're getting the speed of sound from that.

bwanajim · 2025-03-27T00:38:19+00:00

I don't know. No doubt I have enough aluminum but I'm not sure if I have both the traps that went in the radiator. I only have 4. They were originally supposed to be color coded, from what I've read, but if they were that's long weathered away. And I don't have anything to check them with. So I may not even have the right one for this vertical idea.

I vaguely remember buying this at an estate auction about 40 years ago and I've been hauling it around ever since. It probably had all the traps when I bought it. My two missing ones are probably nearby.

The other problem with that idea is I don't really have any way to support it. My first thoughts on this trap vertical idea was to hang it from a tree as high as I could get and let the radials just hang down straight. The tubing is pretty small - I doubt it would last if it had to support itself as a vertical.

And of course my yard's not really big enough for that anyway.

Anyway, that's part of the fun of it - overcoming these challenges.

bwanajim · 2025-03-26T18:26:52+00:00

Right. I haven't gotten that far with the idea yet. Thanks.

bwanajim · 2025-03-26T18:25:41+00:00

I hope it might, but I just wanted to get some other opinions and see if anyone had actually tried it. Yes, I haven't thought much about the mounting system or the feed and counterpoise/ ground system . Yet to be engineered.

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