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Tony Hwang <dragon40@shaw.ca>: Dec 22 10:00PM -0700 ng_reader wrote: >> LAN accesses from a remote IP address to a kid's Sony Playstation? >> *****************************************************************   > Are you afraid of, what, exactly?   Ask the kid if he is playing on line game.

"Paul M. Cook" <pmcook@gte.net>: Dec 23 12:11AM -0500 On Tue, 22 Dec 2015 22:00:40 -0700, Tony Hwang wrote:   > Ask the kid if he is playing on line game.   He does play online, but I don't know if *those* are activities *he* initiated, or if they are attempts to attack us.

Micky <NONONOmisc07@bigfoot.com>: Dec 23 03:39AM -0500 On Wed, 23 Dec 2015 00:11:30 -0500, "Paul M. Cook" <pmcook@gte.net> wrote:     >He does play online, but I don't know if *those* are >activities *he* initiated, or if they are attempts >to attack us.   Maybe you could ask him and you could also have him play a game at a recorded time and then check your log to see if the entries are similar.   AIUI, the average desktop gets thousands of pings a day. When I had that famous software firewall whose name escapes me, it would record and count them.   But thhat doesn't mean the outside ip is targeting your kid specifically. Maybe it just goes through IP numbers consecutively, looking for those that are unprotected.   And it doesn't mean that it can do anything to your kid's device. Isn'tt the software in a game or insertable game hard-coded?   And it doesn't mean the pinger wants to. A lot of my pings were from my own ISP iirc. i don't know why it was doing this when I was already connected.   What could an outside force do to your kid? Can the game display messages on it, like "Come to Syria and kill the infidels. Call 1-800-KIL-L-INF". Frankly I think the people whos say that 12 or 10 is not too young to talk to their children about sex, drugs, etc. are missing the mark. What parents should do is talk during dinner to each other about how stupid drug users are and how stupid and selfish those who get someone pregnant when they're not married, and they can do this when the kid is 4 and up and kids will listen to everything their parents say. But if they are 12 and the parent is telling them what to do, it will be for some kids a challenge to do the opposite, because they dont' like being lectured. That's why parents should talk to each other in front of the kids. There are adequate conversation starters in the news.

"Paul M. Cook" <pmcook@gte.net>: Dec 23 09:54AM -0500 On Wed, 23 Dec 2015 04:19:59 -0800, DerbyDad03 wrote:   > It's not a question of what could be done to the device, it's whether or > not that device is allowing access to the home's network. Once inside > the network it may be possible to gain access to other computers.   Exactly. I'm not worried about the kid being attacked.   I'm worried about the attacker coming in through the port 9000 of the IP address 192.168.1.5 which, at least today, is the Sony Playstation (but it could have been any computer on the day of the attack since I have DHCP).   Once the attacker is on the router, they can potentially get to any computer or monitor anything or watch or whatever the reason they got in for.   That there were *many* similar attacks at roughly the same time is what worries me also.   But, mostly, I am just wanting to know *what* happened, which, from the log files, I can't tell - but that's why I asked. I don't know how to correctly *interpret* this particular set of errors.   We're all just guessing. And that's bad.

Tony Hwang <dragon40@shaw.ca>: Dec 23 07:58AM -0700 Paul M. Cook wrote: > the log files, I can't tell - but that's why I asked. I don't know > how to correctly *interpret* this particular set of errors.   > We're all just guessing. And that's bad.   Playing on-line game? Kids do most of time.

"Paul M. Cook" <pmcook@gte.net>: Dec 23 09:58AM -0500 On Wed, 23 Dec 2015 00:22:59 -0700, Don Y wrote:   > Have you edited your log, here? Are there other activities not shown? > Do you see just these sporadic accesses?   That's an excerpt only but those were the only messages listed with the prefix of "[LAN access from remote]".   > Most routers will provide a (DHCP?) page that show where the current > IP addresses that *it* has doled out are being used. (I suspect > "Attached Devices" in your router).   At the moment, there are no "attached devices" with the DHCP IP address of 192.168.1.5, and the log file doesn't say which device in the house was 192.168.1.5 on that day.   But, looking at the log file, at some point thereafter, the IP address of 192.168.1.5 was the MAC address which is the Sony Playstation.   I can't tell, from the log, what device had the DHCP given address of 192.168.1.5 on the day of the attack.   The router shows "attached devices" but it doesn't show a history.

"Paul M. Cook" <pmcook@gte.net>: Dec 23 10:06AM -0500 On Wed, 23 Dec 2015 07:58:33 -0700, Tony Hwang wrote:   > Playing on-line game? Kids do most of time.   Maybe. But is *that* what the error message says?   I guess I need to *experiment*, by asking the kid to play a few games and then watch the router log file.   What is worrisome is that some of the entries don't come from what I'd expect an online game to come from, e.g., Brazil, Mexico, Japan, France, etc.

Micky <NONONOmisc07@bigfoot.com>: Dec 23 10:16AM -0500 On Wed, 23 Dec 2015 10:06:04 -0500, "Paul M. Cook" <pmcook@gte.net> wrote:     >Maybe. But is *that* what the error message says?   >I guess I need to *experiment*, by asking the kid to play a few >games and then watch the router log file.   Good idea.   >What is worrisome is that some of the entries don't come from >what I'd expect an online game to come from, e.g., Brazil, >Mexico, Japan, France, etc.   When I went to France in 1974, I thought I could impress girls with hershey bars and nylon stockings, but instead I couldnt' afford to eat in a real restaurant.   (though I did eat in an expensive restaurant in Amsterdam before the flight home, rijstafel, and it was only meal I shared with a girl I met the previous day, and we were on the same plane the day after the meal and we were both sick. From the expensive meal)   IOW, despite the impression we're oftren given, they have civilization in those places, and even infra-civilization like games. I'm sure there are gamers in all those countries, but there may also be hackers .

etpm@whidbey.com: Dec 22 05:31PM -0800 On Tue, 22 Dec 2015 16:25:12 -0700, Tony Hwang <dragon40@shaw.ca> wrote:     >If you can simulate ocean, not just a bath tub with water in it.   >> I'll keep reading and looking and observing ... until we find >> out the answer.   When changing size, especially on the scale of a battleship compared to a floating object in a bathtub, all sorts of things don't scale the same. For example if an ant was scaled up to human size it would no longer be able to have the same strength to weight ratio it enjoys at its regular size. Another example that seems excessive but is true is that to small flying things, like bees, the air seems much more viscous than it does to us. I was reading several years ago in Science News that the viscosity of water to a swimming human is similar to what small flying insects experience flying in air. I wonder what the world is like for very small life forms, like bacteria, and very large ones like blue whales. Eric

Poutnik <poutnik4nntp@gmail.com>: Dec 23 07:35AM +0100 Dne 23/12/2015 v 00:07 MJC napsal(a): > In article <n5chck$gu4$1@dont-email.me>, poutnik4nntp@gmail.com says...   >> Poutnik ( the Czech word for a wanderer )   > Related to the familiar word "sputnik"?   sputnik had original meaning traveling companion, so yes.   http://www.etymonline.com/index.php?term=sputnik   sputnik (n.) Look up sputnik at Dictionary.com "artificial satellite," extended from the name of the one launched by the Soviet Union Oct. 4, 1957, from Russian sputnik "satellite," literally "traveling companion" (in this use short for sputnik zemlyi, "traveling companion of the Earth") from Old Church Slavonic supotiniku, from Russian so-, s- "with, together" + put' "path, way," from Old Church Slavonic poti, from PIE *pent- "to tread, go" (see find (v.)) + agent suffix -nik.             -- Poutnik ( the Czech word for a wanderer )   Knowledge makes great men humble, but small men arrogant.

Poutnik <poutnik4nntp@gmail.com>: Dec 23 07:43AM +0100 Dne 23/12/2015 v 00:25 Tony Hwang napsal(a):     > If you can simulate ocean, not just a bath tub with water in it.   That is not needed but it is very difficult to maintain similarity.   -- Poutnik ( the Czech word for a wanderer )   Knowledge makes great men humble, but small men arrogant.

Micky <NONONOmisc07@bigfoot.com>: Dec 23 03:08AM -0500 On Tue, 22 Dec 2015 08:19:12 -0800, "Bob F" <bobnospam@gmail.com> wrote:   >> might not be able to see it with your toilet water."   >I just flushed both my toilets. One went clockwise. The other went >counterclockwise. QED.   Not surprising. Normally, quality home builders will put in a CW toilet and a CCW toilet because if they were both the same direction and both got flushed at once, it can damage the connection where the house sits on the foundation. If you buy a home already built, you should make sure your toilets are opposite each other, or you should be careful not to flush both at once.

dvus <dven1@adelphia.net>: Dec 23 05:23AM -0500 On 12/23/2015 3:08 AM, Micky wrote: > house sits on the foundation. If you buy a home already built, you > should make sure your toilets are opposite each other, or you should > be careful not to flush both at once.   I have never heard anything like that in all my years (50 of them) of construction, nor have I heard it from the plumbers to whom I have talked. If flushing a toilet can damage "connections" we better start building things a lot better.   -- dvus

Poutnik <poutnik4nntp@gmail.com>: Dec 23 12:27PM +0100 Dne 23/12/2015 v 11:23 dvus napsal(a): > construction, nor have I heard it from the plumbers to whom I have > talked. If flushing a toilet can damage "connections" we better start > building things a lot better.   It rather looks like you became a joke victim. Due random turbulent effects, the result of the toilet splash is random as well.   What may be the issue is the design of plumbing wrt the capacity.   If all guests of multi floor hotel got diarrhea after eating "salmonellized" dinner...   -- Poutnik ( the Czech word for a wanderer )   Knowledge makes great men humble, but small men arrogant.

"Bob F" <bobnospam@gmail.com>: Dec 23 05:40AM -0800 Micky wrote: > house sits on the foundation. If you buy a home already built, you > should make sure your toilets are opposite each other, or you should > be careful not to flush both at once.   LOL! Really.

Tim R <timothy42b@aol.com>: Dec 23 06:55AM -0800 Does the Bounty count?   https://en.wikipedia.org/wiki/Bounty_(1960_ship)   This was lost during Sandy and many died. There is a really well done book detailing the last voyage. People did get caught in rigging.

isw <isw@witzend.com>: Dec 22 08:43PM -0800 In article <56799ed2$0$26104$e4fe514c@textnews.kpn.nl>, > rotating. > Distortions will show up quite well. > Even in 1950.   Hoe many trumpeters do you know who can hold a pitch that accurately (essentially zero error for a slow rotation) for that long?   Isaac

Sjouke Burry <burrynulnulfour@ppllaanneett.nnll>: Dec 23 05:48AM +0100 On 23.12.15 5:43, isw wrote:   > Hoe many trumpeters do you know who can hold a pitch that accurately > (essentially zero error for a slow rotation) for that long?   > Isaac   Long enough to see how distorted the circle/ellipse is. You control the signal generator, to keep the frequency almost tracking. Your eyes and your brain can judge a picture very fast.

isw <isw@witzend.com>: Dec 22 10:58PM -0800 In article <fZWdnbkiXZYUH-TLnZ2dnUU7-XGdnZ2d@supernews.com>,   > Unless he had a really expensive ribbon mic, his 1950s microphone had a > heavy diaphragm and rolled off really badly above about 5 kHz. (One of > the audio guys will correct this, but it's roughly right.)   Condenser mics were not common at that time, but certainly were not rare, either. The Altec 21B went to 15 kHz, which would handle the overtones of any real-world musical instrument easily.   Isaac

John Heath <heathjohn2@gmail.com>: Dec 23 01:22AM -0800 On Wednesday, December 23, 2015 at 1:58:11 AM UTC-5, isw wrote: > rare, either. The Altec 21B went to 15 kHz, which would handle the > overtones of any real-world musical instrument easily.   > Isaac   Interesting foot note. A condenser microphone has a small plastic disk inside that is always + on one side and - on the other. It is a charged condenser that can never be discharged no matter how you try to short it out. The molecules inside the plastic disk are frozen that way somewhat like a permanent magnet.   Anyways to the subject at hand. If a guitar string is plucked in the middle of the guitar it makes a sound. If the string is plucked close to the bridge it makes a different sound rich in higher harmonics. The difference between middle and bridge is the difference between sine wave and sine wave plus higher harmonics. In short your ear can detect a sine wave without the need of a oscilloscope. The same is true when repairing a graphic equalizer. The first time we bring out the guns with oscilloscopes , spectrum analyzers and sweep generators. By about the tenth time doing this you just use a Beatles song and let your ear tell you if the graphic EQ is okay or needs sliders cleaned or what not.

jurb6006@gmail.com: Dec 23 01:35AM -0800 >"Well, he was wrong about that. Even 10% third harmonic isn't easy >to >spot unless you have a comparison sine wave on the screen at the same >time. "   And that's if you know what you're looking for. Personally, I think I could detect lower, but I am not the norm. Second order harmonics should be easier to detect with the aid of the "invert" button.   I have come to the conclusion that an invert on at least one channel is essential.   Anyway, I think the trumpet might be near sine wave at its upper ranges. Just from my ears a can guarantee it is not at the lower ones. Listen to, shit, wait a minit...   https://www.youtube.com/watch?v=HX1t9yy-vmo   Most of the aggregation (is that the right word ?) of the sound is the attack and decay of course, but there is a wah wha part of it. Later, he gets up to the higher notes, and then some of those could be sine waves. That horn is a certain size and all that and the response does roll off at a certain frequency just like a speaker.   At that whole system's highest possible resonant frequencies, the output must approach a sine wave.   I would go get you Pink Floyd - Dogs Of War for the super high notes on the saxophone. Unfortunately I can't find the right version in good enough time, it is late. But I suspect alot of wind instruments approach a sine wave at the upper end of their range.

Tim R <timothy42b@aol.com>: Dec 23 05:09AM -0800 On Tuesday, December 22, 2015 at 6:21:31 PM UTC-5, Bennett Price wrote:   > Could you give a citation, reference (or even a URL) to the article. > I'd love to read it. > Thanks   Sure. At the risk of veering off topic, so with apologies.   Background: For centuries musicians have ascribed tone properties to the materials instruments are made of, while physicists shake their heads because the math seems to say that given sufficient wall thickness the material should make no difference. Physicists who play an instrument are of course caught in the middle.   When the argument gets rehashed, which happens frequently, the skeptics point to the Smith review: http://la.trompette.free.fr/Smith/IOA/material.htm There are of course many more papers than that that didn't find a difference but that's the easiest to find and understand. It reviews 13 of the better studies. It isn't that easy to make two identical instruments of different materials, or in fact two identical ones of the same material.   There are only two "studies" that get quoted by the true believers: the Schilke study, quoted here: http://www.dallasmusic.org/schilke/Brass%20Clinic.html which is the one under discussion currently. You can see there is no date, no description, no publication, it's just a handout from a sales convention. The other one is the famous Conn study which suffers from the same absence of the actual original report so it gets quoted by both sides.

heathjohn2@gmail.com: Dec 23 12:34AM -0800 > As about 2/3 of my hobby time is dedicated to vintage radios, I am quite familiar with, and keep a bunch of these lamps in my spares-box.   > Peter Wieck > Melrose Park, PA   Yes antique radios. I like them to with filaments glowing in the tubes.For younger members the tube is old glass bulb valve with the led on top. Some of them have the magic green eye for RF strength if you are lucky enough to find one. Neat trick that you can do with the old variable capacity plate tuner. Charge it to 30 volts with a neon bulb across. When you turn the tuning knob to open the plates the neon bulb will flash? With only 30 volts how could it flash a neon bulb with a 80 volt trigger voltage?

MJC <gravity@mjcoon.plus.com>: Dec 23 09:18AM In article <695088d6-14d7-496c-9495-a44d9e55306f@googlegroups.com>, heathjohn2@gmail.com says... > ... Neat trick that you can do with the old variable capacity plate tuner. Charge it to 30 volts with a neon bulb across. When you turn the tuning knob to open the plates the neon bulb will flash? With only 30 volts how could it flash a neon bulb with a 80 volt trigger voltage?   I wish I'd thought of doing that. But I'm amazed it works, even with beautifully cleaned insulators on your capacitor.   Good demonstration of relationship between charge, voltage and capacity. (Analogue of skater's pirouette?)   Mike.

Adrian Caspersz <email@here.invalid>: Dec 23 12:57PM On 03/12/15 02:27, Arfa Daily wrote: > I still have a bunch of neons somewhere. I might try knocking one up > again ... :-)   > Arfa   When I was about 10, I had a Tandy Radio Shack kit of 5 neon bulbs in a row, that had a plastic box.... oh, hang on - let google find an image ..   (later)   that, the Science Fair Goofy-Lite http://my.core.com/~sparktron/130P1.JPG   The Radio Shack, Science Fair, P-Box kits http://my.core.com/~sparktron/pbox.html   Interesting that it flickered differently in the dark, or with ones finger acted up differently.   Ran from 6V. There was an option of making it sequential rather than random.   Schematic http://my.core.com/~sparktron/130P6.JPG     I also built the Three Transistor Short Wave Regenerative Receiver kit http://my.core.com/~sparktron/110P1.JPG   Happy Days. Had to be quick with the soldering iron or the box would melt :)   -- Adrian C

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