--------------- FIDO MESSAGE AREA==> TOPIC: 180 ASTRONOMY Ref: EGV00009 Date: 12/25/97 From: LANCE REYNOLDS Time: 03:42pm \/To: TIM EDWARDS (Read 4 times) Subj: personal note Hyya Tim! LR>What do you do for a living, if you don't mind my asking? > Hmmm... Night shift, I do production test/calibration of > sensor-signal conditioners (this year), in the mornings I fix Where at? > organs (from old Hammond B3s to the newer Yamahas and Rodgers) as > a contract-tech, through my own "company"... weekends I keep up my > website and try to locate customers so I can shift my company from > tech-services to website authoring. In my spare time I chat on a > couple echos, eat, and sleep. If its not too much trouble, could I have your email address and your website? My current email address is lance.reynolds@shakeyjake.n2.net or lance.reynolds@ouroboros.org Thanks, lance * Silver Xpress V4.4 [Reg] --- Platinum Xpress/Win/Wildcat5! v2.0 * Origin: Modem Magick (619)447-5010 (1:202/311) --------------- FIDO MESSAGE AREA==> TOPIC: 180 ASTRONOMY Ref: EGV00010 Date: 12/25/97 From: LANCE REYNOLDS Time: 03:42pm \/To: TIM EDWARDS (Read 4 times) Subj: Gravity Hyya Tim! TE> I said the planets and the minor planets... not comets... it TE> would seem to be two different populations, one that formed from TE> the primordial cloud, and all shares the same original spin, and TE> the cometary visitors. Ahhh, thats right! I forgot about the comets... TE> All of the satellites are subject to several forces... an orbit [..] TE> perturbations. The GeoSynch birds are always having to use TE> thrusters to get back on station, and when the fuel is about TE> gone, they "eject" them from the parking lot and send up Where do they send them? Cinder-ize them? Or put them in some other, less costly orbit? Isn't there an altitude where the speed required to stay in orbit would keep the bird over the same spot on the planet? L-1? L-something? TE> another... it is not the electronics that gives out in most TE> cases. Polar orbits are no more or less hard to hold, but they TE> take more fuel to reach in the first place, since both start TE> from a spinning Earth, and the equatorial orbit _uses_ that TE> spin-speed, and the polar must _lose_ it, then replace it with a TE> north-south speed. Ah so. Thanks for the info and the patience with all the questions. lance * Silver Xpress V4.4 [Reg] --- Platinum Xpress/Win/Wildcat5! v2.0 * Origin: Modem Magick (619)447-5010 (1:202/311) --------------- FIDO MESSAGE AREA==> TOPIC: 180 ASTRONOMY Ref: EGV00011 Date: 12/25/97 From: LANCE REYNOLDS Time: 03:42pm \/To: TIM EDWARDS (Read 4 times) Subj: Venus & milky way Hyya Tim! TE> times that away.. and a million miles is "only" four times as TE> far as the Moon. Try forty trips around the Earth. What, on my bike? :0 Of course, depends on where you make the trips. I've got the equivalent of 3.something-over-half so far in my submarine travels, if the distance was laid out at the equator. We did go around the world 3 (4?) times in 2.5 months once. One of the circuits was completed in just a few minutes... Drove our electronic navigator crazy. I guess I prefer _not_ to try to visualize distances on that scale because it sort of reduces us to something quite undetectable... lance * Silver Xpress V4.4 [Reg] --- Platinum Xpress/Win/Wildcat5! v2.0 * Origin: Modem Magick (619)447-5010 (1:202/311) --------------- FIDO MESSAGE AREA==> TOPIC: 180 ASTRONOMY Ref: EGV00012 Date: 12/25/97 From: LANCE REYNOLDS Time: 03:42pm \/To: TIM EDWARDS (Read 4 times) Subj: Tilt Hyya Tim! TE> I forget, but... go direct to my "office" animation wall, TE> , [..] TE> long time to load that page, but it is a "phonebook" of most of TE> the Astronomy sites on the net. Thanks. I'll check it out. lance * Silver Xpress V4.4 [Reg] --- Platinum Xpress/Win/Wildcat5! v2.0 * Origin: Modem Magick (619)447-5010 (1:202/311) --------------- FIDO MESSAGE AREA==> TOPIC: 180 ASTRONOMY Ref: EGV00013 Date: 12/25/97 From: LANCE REYNOLDS Time: 03:42pm \/To: JIM VAN NULAND (Read 4 times) Subj: Subject lines, changing Hyya Jim! JVN> It's not that (we) are unwilling to change the subject; it is JVN> that the "reply" function on mail programs, or directly on the JVN> BBS, automatically carry over the subject line. That is, it JVN> takes a separate step to change the "Subject:". Ah... lazy. Good a reason as any, I guess. JVN> You are quite right that the subject line ought to be changed, JVN> but often, the topic only slowly drifts away from the original. And, as I've discovered _after_ sounding off about it, often tends to slowly drift right back, too. <:' lance * Silver Xpress V4.4 [Reg] --- Platinum Xpress/Win/Wildcat5! v2.0 * Origin: Modem Magick (619)447-5010 (1:202/311) --------------- FIDO MESSAGE AREA==> TOPIC: 180 ASTRONOMY Ref: EGW00000 Date: 12/22/97 From: ILKAY UZUN Time: 07:56am \/To: ARNOLD G. GILL (Read 4 times) Subj: Re: Galaxy Missing Mass (17 Dec 97 12:33:20 ciki$li "Arnold G. Gill/Galaxy Missing Mass" belgesi kurulda incelendi) Merhaba Arnold, AGG> Paradoxically, as black holes emit radiation, they get hotter AGG> (i.e., they get smaller), so they emit radiation at a greater rate, AGG> heating up even more. Eventually, the reach near infinite temperatures AGG> for an infinitesimally short period of time - i.e., they explode in AGG> gamma rays. Then how come they exist? Are they produced and destroyed quickly? (If they do exist, should I say?) Sevgiler... IU, the Previous Generation Audiophile. ... Dust: Protective coating for furniture. --- Blue Wave/DOS v2.30 * Origin: Gecko BBS in Twilight Zone +90-Umm-Screwit (2:431/310) --------------- FIDO MESSAGE AREA==> TOPIC: 180 ASTRONOMY Ref: EGW00001 Date: 12/22/97 From: ILKAY UZUN Time: 08:57pm \/To: ALL (Read 4 times) Subj: the beginning Hello everybody, I have a question, though silly it may seem. As we look farther into the universe, we see more distant objects. If so, 1-When our viewing and dedecting equipment gets very advanced, shall we be able to see the beginning of the universe, ie, for example, we see a star n light years away, then 2n away, then 3n...What is the limit? 2-If we could dedect it all, shouldn't the universe be still bright with the light of the big bang? I hope I could express my question correctly...Greetings from Turkey. PS: Hakan, bu soruyu sana daha once sorduumu biliyorum, bakalim onlar ne diicek, ok? Sevgiler... IU, the Previous Generation Audiophile. ... Christmas: kill a tree for Jesus! --- Blue Wave/DOS v2.30 * Origin: Gecko BBS in Twilight Zone +90-Umm-Screwit (2:431/310) --------------- FIDO MESSAGE AREA==> TOPIC: 180 ASTRONOMY Ref: EGW00002 Date: 12/25/97 From: SID LEE Time: 10:54pm \/To: LANCE REYNOLDS (Read 4 times) Subj: Uranus pictures -=> Quoting LANCE REYNOLDS to JIM VAN NULAND <=- JVN> I don't know specifically about Voyager imaging; that may JVN> precede the internet, and surely the web. But generally, one LR> Really! Wow. I didn't know Voyager had been gone that long. Time does fly doesn't it ;-) Voyager left Earth in the mid '70'. The internet began in th late '60's so Voyager didn't predate it but the internet reamined almost exclusively an academic and defence industry system until the late '80's and the World Wide Web (which now is what most people think "is the internet" but of course it is not but merely one aspect of the internet) was "invented in the eraly '90's and came to prominence around '93 or so. LR> How many spacecraft have flow by any of the outer planets (N, U, P), LR> anyway? I assume all of ours were under NASAs cloak... Did the LR> Soviets ever launch any missions like Voyager? The 2 Voyager missions have both "left" the Solar system with Voyager II doing flyby's of Uranus and Neptune while V-I "went vertical" after encountering Saturn and went "up" or North out of the plane of the SS from there. At least one Pioneer probe has left the SS as well though I don't think it encountered any planets beyond Jupiter. The Soviets have not launched any "deep" planetary probes. They did a lot of work on Venus and attempted a mission to Mars relatively recently but lost the vehicles. JVN> and look around. There JVN> are many images, including Uranus. LR> Do I need the .html on the end? Is there some other kind of page? (I The "html" is required since the stuff between the quotes is a file name on the remote system. Namiing conventions and system configurations at the remote sites vary so you don't "always" need the "html", it depends on the site you are connecting to. LR> What does the > on the end do/signify? For you, nothing. Jim's post has been "cut and pasted" from an "html" document he has. With your web browser you enter the part between the quotes only. The "" designations are markers used in HTML (Hyper Text Markup Language) composition. In this case it places one of those "clickable links" in the document. -- Regards -- Sid Lee (FIDO - 1:134/122, Internet - sidlee@agt.net) --- Blue Wave/Max v2.12 * Origin: RASCAL BBS [Calgary, Alberta - (403)686-2550] (1:134/122) --------------- FIDO MESSAGE AREA==> TOPIC: 180 ASTRONOMY Ref: EGW00003 Date: 12/26/97 From: BOB KING Time: 08:59am \/To: LANCE REYNOLDS (Read 4 times) Subj: Theory vs fact Hi, >>> So when you say it's 'just a theory,' what do you mean >>> by that? > BK> I mean that although it stand up in all the ways we can test it that > BK> does not make it a fact. > Hmmm. That must mean there really are no such things > as facts, then, > eh? I didn't say that > If testing something in all the ways we can test it > fails to discover > anywhere where that something is inconsistent isn't > good enough > criteria to establish it as fact, what will? There have been many scientific 'facts' presented to the human race that have since proved false or at least only partly right. At the time they were considered facts, that didn't make them so and further research often proved they were not so. > I think people say theory sometimes when they really > mean hypothesis. Yes a much better word. > Theory has been tested, refined, retested, challenged, > proved to > work... Within the confines of the ability to test them at the time. > Good theories are about as close to facts as > we can get. So > what if they're not facts; Then they are just ideas/theories. > Sorry. Just had to toss in my $.02. Your welcome. sig rex --- FMail/386 1.22 * Origin: Bob's Point, Christchurch New Zealand (3:770/115.16) --------------- FIDO MESSAGE AREA==> TOPIC: 180 ASTRONOMY Ref: EGW00004 Date: 12/26/97 From: MIKE ROSS Time: 11:23am \/To: W BOSON (Read 4 times) Subj: Re: Galaxy Missing Mass W Boson said the following to Adam Majer on the subject of Galaxy Missing Mass (25 Dec 97 09:35:25) One, thing comes to mind on the question of a super-massive BH at the core of our galaxy, this being that central core stars are seen to have random velocities. If one takes into account the central BH, grazing orbits which result in the now familiar gravitational sling shot effect could well result in the random orbits observed. In addition there is the matter of the diffuse halo that is seen around the central bulge. It is observed in similar giant galaxies, that the glow doesn't exhibit limb darkening like our Sun's albedo does. Instead the halo simply becomes more diffuse away from the center such that background stars can be seen to shine through. A good example of this diffuse halo is M87 which has now just about been confirmed to be a BH. This diffuse spherical shape is characteristic of an active randomizing mechanism. If it wasn't present the core region would likely be flat. Perhaps part of the halo glow is due to energy being released from the matter falling into the BH and also from evaporation which would also be a random event occurring at all wavelengths. In fact central bulge glow tends to have a wide band continuum radiation spectrum which is another clue of the random nature of its cause. Studies of central bulge stars have shown that their gravitational motions can only be accounted for by twice the observed mass. I tend to believe the more energetic motions are due in part to the BH's gravitational sling shot effect I spoke of rather than some unseen subatomic particle such as neutrinos with a proposed mass. --- Blue Wave/DOS v2.30 * Origin: Juxtaposition BBS. Lasalle, Quebec, Canada (1:167/133)