How revolting. Dewey -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Steve Gregory Sent: Tuesday, October 24, 2006 5:31 AM To: [log in to unmask] Subject: Re: [TN] NTC: Friday enigma. Ahhhhh, I see. You explained it so well Inge, but maybe a lot of people didn't understand it. Well, fortunately for them, I have this video posted on my web page of a catacitor that got charged with 600 VDC but had nowhere to discharge. So it kicked back to the resistor which in turn released the charged catacitor: http://stevezeva.homestead.com/files/pinky.wmv -Steve Gregory- -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Inge Sent: Sunday, October 22, 2006 4:31 PM To: [log in to unmask] Subject: Re: [TN] NTC: Friday enigma. So, if you connect the plus pole to the front legs on a cat ( a catacitor), and the minus to the rear legs, and also place your sister (resister) in series, and switch on the 600 VDC supply, then the cat will make a tremendous jump (inrush) but will come nowhere because of your sister, who got 50 times the weight of the cat. But the cat is charged with anger and will take any opportunity to kick back. I understand that, but the rest is hard to see. So, you paint one side of the cat with conductive silver epoxy, let it cure at room, which will take time as it follows an asymptotic curve. And after that you switch on again. And you say, that the cat can never pull the cord again and the cord can never slacken. The only solution I can find, is that the cat died because it disliked the silver epoxy and tried to lick it off, and as the cat's gone, it can't pull the cord any more. So far OK, but why can't the cord slacken? Your sister ought to give a shrill and run to the cat and take it up and sob and pat the cat, and the cord will slacken. Your insisted bilateral equipotential anticircumstance ....I can't fix that. Inge PS. I'm still thinking that it's a 47 pF cap, because the end cap silver has migrated across, silver has atomic number 47 and when the circuit is switched on, you will here a tiny 'pFff' when the bridge burns off, and the cap works again. ----- Original Message ----- From: "Brian Ellis" <[log in to unmask]> To: <[log in to unmask]> Sent: Monday, October 23, 2006 5:23 PM Subject: Re: [TN] NTC: Friday enigma. > OK, the monetary value is obviously zero, as it is short-circuited by > the metal. But the enigma is its electrical value as a capacitor. If a > capacitor is connected to a DC source via a resistor to limit the > current, there will be an initial surge of current of a value > determined by the source voltage and the resistance of the circuit, > determined by Mr Ohm. The current will then decay exponentially as the > capacitor charges, providing a back EMF to the source, heading towards > an asymptote of zero (assuming a perfect capacitor), when it is fully > charged. The higher the value of the capacitor, the higher will be the > current after a given time, and the longer will be the decay curve. In > this case, after the given time, the current will be the same as the > initial value, indicating that the value of the capacitor will be > infinity farads because it can never be charged to the source voltage > and the charging current can never decay. :) :) > > Brian > > Brian Ellis wrote: >> On http://stevezeva.homestead.com/files/c46.JPG there is an 'orrible >> photo of a ceramic capacitor. What is its value? :-) :-) >> >> --------------------------------------------------- >> Technet Mail List provided as a service by IPC using LISTSERV 1.8e To >> unsubscribe, send a message to [log in to unmask] with following text >> in the BODY (NOT the subject field): SIGNOFF Technet To temporarily >> halt or (re-start) delivery of Technet send e-mail to >> [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing >> per day of all the posts: send e-mail to >> [log in to unmask]: SET Technet Digest >> Search the archives of previous posts at: >> http://listserv.ipc.org/archives >> Please visit IPC web site >> http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional >> information, or contact Keach Sasamori at [log in to unmask] or >> 847-615-7100 >> ext.2815 >> ----------------------------------------------------- >> > > --------------------------------------------------- > Technet Mail List provided as a service by IPC using LISTSERV 1.8e To > unsubscribe, send a message to [log in to unmask] with following text in > the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt > or (re-start) delivery of Technet send e-mail to > [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing > per day of all the posts: send e-mail to > [log in to unmask]: SET Technet Digest > Search the archives of previous posts at: > http://listserv.ipc.org/archives Please visit IPC web site > http://www.ipc.org/contentpage.asp?Pageid=4.3.16 > for additional information, or contact Keach Sasamori at > [log in to unmask] or 847-615-7100 ext.2815 > ----------------------------------------------------- --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 1.8e To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/archives Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 ----------------------------------------------------- --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 1.8e To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/archives Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 ----------------------------------------------------- --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 1.8e To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/archives Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 -----------------------------------------------------