Post by thread:move to newsgroup

-----Mensaje original----- De: John P. Leonard <spam_OUTleonardTakeThisOuTTARDIS.SVSU.EDU> Para: .....PICLISTKILLspam@spam@MITVMA.MIT.EDU <PICLISTKILLspamMITVMA.MIT.EDU> Fecha: martes 5 de mayo de 1998 17:11 Asunto: Re: move to newsgroup >I'll add another no vote to moving the PIClist to the newsgroups. >I have access to the newgroups, but rarely visit; the signal-to-noise is >unacceptably poor. (I REALLY don't want to buy pictures of someones grand- >mother doing weird things with one of our four-legged friends.) > I adhere to your position. >I, for one, like the diversity of people and projects this list delivers >just the way it is. It's nearly Spam-free! > >John There are just too many messages per day for me to be updated, but it is still better than news. Andres j.

Hi All, I'm the one who started the newsgroup vs mailing list thread back up again, so I see it as my responsibility to kill it. I agree with the many people who have responded saying that although it is hard to keep up with the mailing list, it is better to quickly read through a bunch of emails that are related to PICs than to be forced to read through a bunch of spam that is, to put it mildly, off topic. I also sympathize with the many members of the list who have email-only access, and thus could not participate if the list were moved to a newsgroup. Some people have http blocked by their company, so they can't even use dejanews. Most of all I want to thank the people who have made the following suggestions, most made by email, that I'm sending back to the group since they've helped me be more productive, and have forever sated my thirst for a newsgroup: 1) There is a well-known windows newsreader called Agent which, when configured as a mail reader, will thread the messages as if they are a newsgroup. A folder called "inbox" appears in the same window as all of the subscribed newsgroups. Very slick. This product costs $29 from Forte, Inc: http://www.forteinc.com The demo version of this product, Free Agent, does not support SMTP/POP/email, so you've got to buy the full version to try this out. A bargain at twice the price, IMHO. A word of warning: the best way to set this up is to subscribe to the piclist with an email address other than the one you use for general email, since the threading works best when only piclist traffic is coming to the address. I used an address I have on a client's server which I never use for anything else, which is ideal. Note that the free email from yahoo.com requires you to use their web-based interface instead of POP, so it won't work. 2) There is a newsgroup, comp.arch.embedded, which actually has a fair amount of discussion about PICs. Of course, there is discussion of other products too, which may be what some people want, and may be spam to others :-) news://comp.arch.embedded The amount of actual spam in this newsgroup is pretty close to zero, at least on my server. YMMV. Cheers, Bart ==Bart Addis====================================================== / Software Engineering/Hardware Design / Voice 610-974-8870, Fax 8890 / pgp fp 81A86F508FDEE98CECE81BFDA0A366A779C8BED4 ==bart=at=fast=dot=net===================================================

It is true that some vacuum tubes which are capable of anode voltages of 400 to 500 volts can produce x-ratys. The first X-ray tube was nothing more sophistocated than a high voltage diode which could be pumped to various levels of vaccum and operate at various applied high voltages. The device emitted x-rays even if the vacuum was poor, as long as the anode voltage was high enough to accelerate the litte e's fast enough to strike their but on the anode with the energy to produce the x-ray. So, in theory, the vacuum tube can do this x-ray thing. BUT! The circumstances of wavelength and control require specific anode materials and kinetics and kinematic circumstances which produce hard, medium, soft rays, etc. which are really are a complex function of the set of parameters. With an excitation high voltage applied to a vacuum tube, say a beam power pentode, for example, you may ge able to control the acceleration with the control grid and screen grid bias but you have no control over the elemental circumstances. I saw that someone said you were about to venture beyond the "backyard enterprise". There is a bit of truth here, perhaps some experience and no doubt some wisdom. BUT!!! I hope you will be neither discouraged nor disuaded from your venture "into science fiction". It is a wonderful journey. GOOD LUCK. Bon Voyage. ---------- > From: Jim Hutchison <.....hutchKILLspam.....TELENET.NET> > To: EraseMEPICLISTspam_OUTTakeThisOuTMITVMA.MIT.EDU > Subject: Re: move to newsgroup > Date: Wednesday, May 06, 1998 7:43 PM > > >I'll add another no vote to moving the PIClist to the newsgroups. > >I have access to the newgroups, but rarely visit; the signal-to-noise is > >unacceptably poor. (I REALLY don't want to buy pictures of someones grand- {Quote hidden}> >mother doing weird things with one of our four-legged friends.) > > >I, for one, like the diversity of people and projects this list delivers > >just the way it is. It's nearly Spam-free! > > > >John > > Add my no vote. I Agree! > > Thanks > Jim Hutchison

An old "science project" book I read had you make an x-ray emitter from an ordinary lightbulb, by using the filament as the cathode (very High voltage supply) and a piece of foil on the outside of the bulb as the anode/target. I doubt it was efficient, but I don't doubt that it produced some xrays. All you have to do is accelerate those electrons (any high voltage supply will do) and smash them into something... (modern lightbulbs aren't high vacuum anymore, are they? They've got some sort of inert gas?) BillW

On Tue, 5 May 1998 18:46:32 GMT, Bart Addis <bartspam_OUTFAST.NOSPAM.NET> wrote: {Quote hidden}>Most of all I want to thank the people who have made the following >suggestions, most made by email, that I'm sending back to the group >since they've helped me be more productive, and have forever sated my >thirst for a newsgroup: > >1) There is a well-known windows newsreader called Agent which, when >configured as a mail reader, will thread the messages as if they are a >newsgroup. A folder called "inbox" appears in the same window as all >of the subscribed newsgroups. Very slick. This product costs $29 >from Forte, Inc: > >http://www.forteinc.com > >The demo version of this product, Free Agent, does not support >SMTP/POP/email, so you've got to buy the full version to try this out. >A bargain at twice the price, IMHO. > >A word of warning: the best way to set this up is to subscribe to the >piclist with an email address other than the one you use for general >email, since the threading works best when only piclist traffic is >coming to the address. I used an address I have on a client's server >which I never use for anything else, which is ideal. Note that the >free email from yahoo.com requires you to use their web-based >interface instead of POP, so it won't work. I would just like to add my two off-topic cents to this thread. I use the commercial version of Agent for news and email, and am very happy with it. However, you *can*, very easily, set up "watch filters" that will move documents from a certain address (actually, with any specified text in any specified header line) to a specific folder for you. I use this to move all of my PICLIST traffic to its own folder, and do the same with several other mailing lists (all much lower traffic, however). It works quite well, and each folder has message threading just like a newsgroup. - Rick "Not Free, but quite reasonable" Dickinson Enterprise ArchiTechs | Views expressed on topics unrelated http://www.eArchiTechs.com | to messaging are not those of my NoSpam eMail:@spam@rtdKILLspamnotesguy.com | company, and may not even be mine.

On Wed, 6 May 1998 22:58:52 PDT, William Chops Westfield <KILLspambillwKILLspamCISCO.COM> wrote: >(modern lightbulbs aren't high vacuum anymore, are they? They've got >some sort of inert gas?) True...it's due to vapor pressure, believe it or not. When the filament gets hot, some of the material (do they still use tungsten?) will vaporize. Any filament material that vaporizes and doesn't redeposit on the filament when it cools results in thinner, weaker portions of the filament, leading to reduced bulb life. Physical processes like evaporation tend to a dynamic state of equilibrium. The "vapor pressure" of atoms leaving the filament is balanced by the "partial pressure" of atoms running into the filament. In an initially evacuated bulb, with a filament at a given temperature, more atoms must leave the filament to build up a balancing pressure in the bulb than if the bulb were full of some inert gas in the first place. Also, within a gas-filled bulb, convection currents can cool the filament, meaning that a thicker, lower resistance filament must be used to to get to the same temperature and light output. Thicker filaments last longer. - Rick "Bright Ideas" Dickinson Enterprise ArchiTechs | Views expressed on topics unrelated http://www.eArchiTechs.com | to messaging are not those of my NoSpam eMail:RemoveMErtdTakeThisOuTnotesguy.com | company, and may not even be mine.