A word of advise is whenever you live the PC for any reason not to mention going to WC/Rest room..just shut down the PC , Can this subject of correlating fushing the toilet with EMC phenomenon be used for a graduate level thesis. This can have a long lasting effect that correlate the black magic of EMC with daily human need!!! Sorry for lack of craetivity and inability to theorize...just try to be funny and alleviate a little daily stress..
Nezam -----Original Message----- From: Gary McInturff [mailto:gmcintu...@packetengines.com] Sent: Friday, July 09, 1999 4:57 PM To: 'ed.pr...@cubic.com'; Bailin Ma; EMC-PSTC Subject: RE: EMC Detective and Flushing Toilet Let's see here. My mommy sent me to college so that I could play with tinfoil, and theorize about toilets! Heavy sigh!. I think we have missed the obvious point here. This whole things boils down to a computer dump! If you quit feeding it the need for the dump should go away. Sorry about the potty mouth. I do have a final question though, why is the client working on the computer while he's in the bathroom anyway? If they are this involved with his computer maybe the problem is just stuff falling out of their pocket protector and hitting the reset button. Gary -----Original Message----- From: ed.pr...@cubic.com [SMTP:ed.pr...@cubic.com] Sent: Friday, July 09, 1999 11:28 AM To: Bailin Ma; EMC-PSTC Subject: Re: EMC Detective and Flushing Toilet Barry: I would be tempted to say that the reboot is actually an undocumented feature in which bad data is automatically flushed from the system. But this actually sounds like a clear case of hydraulic hammer. In typical residential construction, all utilities, including water and electric power, are routed within the walls and under the subfloor. As the toilet flushes, the water closet fill valve rapidly opens. This creates a momentary drop in the supply line water pressure, causing the pipe to flex slightly. When the fill valve closes, the moving mass of water is suddenly forced to a halt, producing another flex in the pipe. The mechanical stress in the pipe is translated to the house structure, which in turn is flexing some electrical circuit. Over many years of repeated flushing, the buildup of repetitive strain has caused small faults to occur in the flexed power circuit. This causes momentary drop-outs in that circuit, which cause the computer to re-boot. Even if the circuit is a different one than the computer's power source, the electrical noise caused by the fault couples onto whole house wiring. The fault could even be located at the water heater, where a strap jumper is often used to electrically connect the inlet and outlet pipes to maintain ground continuity of the plumbing system. Fixing this is difficult, since it puts the customer's desires for computational efficiency in direct opposition to his personal hygiene training. Sure, the easy path would be to tell the customer that the toilet is simply not Windoze compatible, and that he must upgrade to Potty NT. But I think that there's an elegant way to fix this in software. The customer has obviously been making those nature calls during the operation of some particular program, let's say MS Word. The customer should simply put a shortcut, pointing to the path for winword.exe, into his Start Up folder. That way, when the computer re-boots, it will automatically re-start MS Word and re-load the work-in-process from the back-up copy. (To avoid significant work loss, the Auto Save option should be set to a short interval, like maybe 30 seconds.) Regards, Ed ------------------------ From: Bailin Ma <b...@namg.us.anritsu.com> Subject: EMC Detective and Flushing Toilet Date: Wed, 31 Dec 1969 23:00:00 GMT To: emc-p...@ieee.org > > Greeting to the group, > > EMC engineers in a PC maker received a customer's complains transferred > from technical support group that every time he flushes toilet his PC > always reboots. Assuming you were one of EMC engineers, please participate > the discussion and try to answer following questions: > (1) Fabricate an EMC story to relate the cause (Flushing toilet) to the > effect (Rebooting PC). > (2) Direct the customer to verify your speculation. > (3) Fix the problem. > > Barry Ma > -------------------------- Ed Price ed.pr...@cubic.com Electromagnetic Compatibility Lab Cubic Defense Systems San Diego, CA. USA 619-505-2780 Date: 07/09/1999 Time: 10:28:06 Military & Avionics EMC Services Our Specialty Also Environmental / Metrology / Reliability -------------------------- --------- This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators). --------- This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators). --------- This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators).
