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Groups > sci.physics > #829198
| From | whodat <whodaat@void.nowgre.com> |
|---|---|
| Newsgroups | sci.physics |
| Subject | Re: How many planets are there? |
| Date | 2021-07-29 23:09 -0500 |
| Message-ID | <imhccdFtiodU1@mid.individual.net> (permalink) |
| References | (18 earlier) <455d4505-9f30-48e6-9a40-93f45fde532en@googlegroups.com> <sdvb4d$1eu2$1@gioia.aioe.org> <5aade2a4-6eac-4fea-b68a-d397310975dan@googlegroups.com> <imgr11FqaulU1@mid.individual.net> <sdvghk$1dnf$1@gioia.aioe.org> |
On 7/29/2021 7:18 PM, Sergio wrote: > On 7/29/2021 6:13 PM, whodat wrote: >> On 7/29/2021 6:05 PM, Paul Alsing wrote: >>> On Thursday, July 29, 2021 at 3:46:43 PM UTC-7, Sergio wrote: >>>> On 7/29/2021 2:28 PM, Paul Alsing wrote: >>>>> On Thursday, July 29, 2021 at 12:08:07 PM UTC-7, Michael Moroney wrote: >>>>>> On 7/29/2021 12:51 PM, Paul Alsing wrote: >>>>>>> On Thursday, July 29, 2021 at 6:40:00 AM UTC-7, Michael Moroney >>>>>>> wrote: >>>>>>>> On 7/29/2021 1:12 AM, The Starmaker wrote: >>>>>>>>> The Starmaker wrote: >>>>>> >>>>>>>>> In Order for Frank Drake to use a sample for his equation, it >>>>>>>>> would have to have a pattern, a sequence...meaning two or more >>>>>>>>> planets. >>>>>>>> Not two or more, but an average of 2. Sometimes 3, sometimes 0, >>>>>>>> sometimes 1 etc... >>>>>>> >>>>>>> Actually, zero is never an option for any term because that would >>>>>>> always result in an answer of N = 0 >>>>>> No, nₑ is an average. Different stellar systems have more or fewer >>>>>> earthlike planets, and some stellar systems will have 0 earthlike >>>>>> planets. nₑ doesn't have to be an integer, either. If half the stellar >>>>>> systems have 1 earthlike planet and the other half have none, and none >>>>>> have more, then nₑ = 0.5. It's only when the average is 0 (meaning no >>>>>> earthlike planets at all, anywhere), that makes N = 0 and the equation >>>>>> trivial. >>>>> >>>>> Agreed. >>>>> >>>> another fact *left out of Drakes* is how far a radio signal can travel >>>> called free space path loss, it is only about the size of our solar >>>> system. >>>> >>>> you will want to use a frequency between 1 and 2 Ghz, lowest attenuation >>>> frequincy for RF >>>> >>>> say your reciever can detect signals at -140 Dbw, and has a dish gain of >>>> 50 db and the Alien transmitter can transmit at 100kW (50dBW) >>>> >>>> so you have 140 + 50 + 50 = 240 db you can loose in losses. >>>> >>>> transmitter gain in dB of 100 (omni directional) >>>> reciever gain in dB of 1000 (high gain antenna) >>>> >>>> https://www.everythingrf.com/rf-calculators/free-space-path-loss-calculator >>>> >>>> >>>> >>>> try it, we cannot pickup signals outside of our solar system. >>> >>> As far as I know, radio telescopes see lots of stuff much farther away >>> than the limits of our solar system... >> >> >> >> "With the help of the European Southern Observatory's Very Large >> Telescope (ESO's VLT), astronomers have discovered and studied in detail >> the most distant source of radio emission known to date. The source is a >> "radio-loud" quasar -- a bright object with powerful jets emitting at >> radio wavelengths -- that is so far away its light has taken 13 billion >> years to reach us. The discovery could provide important clues to help >> astronomers understand the early Universe." >> >> https://www.sciencedaily.com/releases/2021/03/210308084222.htm > > the power source in that case is huge, not just one transmitter on a > planet, but billions of suns emitting energy. > > try running the equations with a million watts (possable to generate) > and see how far you can go, assume a bandwidth of 1 mhz This is called "moving the goalposts." since you wrote, "we cannot pickup signals outside of our solar system." I do agree that there is a matter of power level to be considered, and also that this is a science newsgroup where statements couched in terms of absolutes will generally fail, as has yours. I have no argument with your modified rendition. My purpose was not to demean, but to steer the discussion (along with Paul) back to the things we know to work. Godspeed.
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How many planets are there? The Starmaker <starmaker@ix.netcom.com> - 2021-07-17 23:08 -0700
Re: How many planets are there? Sylvia Else <sylvia@email.invalid> - 2021-07-18 17:14 +1000
Re: How many planets are there? The Starmaker <starmaker@ix.netcom.com> - 2021-07-18 00:23 -0700
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Re: How many planets are there? Jonathan <writeInstead@Gmail.com> - 2021-07-19 08:58 -0400
America's life expectancy is dropping like never before. Jeff-Relf.Me @. - 2021-07-19 11:38 -0700
Re: America's life expectancy is dropping like never before. The Starmaker <starmaker@ix.netcom.com> - 2021-07-19 23:50 -0700
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Re: America's life expectancy is dropping like never before. The Starmaker <starmaker@ix.netcom.com> - 2021-07-20 09:27 -0700
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Re: America's life expectancy is dropping like never before. Clutterfreak <clutterfreakincarnate@gmail.com> - 2021-07-20 11:35 -0500
Re: America's life expectancy is dropping like never before. The Starmaker <starmaker@ix.netcom.com> - 2021-07-20 10:10 -0700
Re: America's life expectancy is dropping like never before. chrisv <chrisv@nospam.invalid> - 2021-07-20 12:35 -0500
Re: America's life expectancy is dropping like never before. Paul Alsing <pnalsing@gmail.com> - 2021-07-20 10:43 -0700
Re: America's life expectancy is dropping like never before. Clutterfreak <clutterfreakincarnate@gmail.com> - 2021-07-20 13:05 -0500
Re: America's life expectancy is dropping like never before. Paul Alsing <pnalsing@gmail.com> - 2021-07-20 13:50 -0700
Re: America's life expectancy is dropping like never before. Clutterfreak <clutterfreakincarnate@gmail.com> - 2021-07-20 20:25 -0500
Re: America's life expectancy is dropping like never before. Paul Alsing <pnalsing@gmail.com> - 2021-07-20 19:31 -0700
Re: America's life expectancy is dropping like never before. The Starmaker <starmaker@ix.netcom.com> - 2021-07-23 14:21 -0700
Re: America's life expectancy is dropping like never before. Paul Alsing <pnalsing@gmail.com> - 2021-07-24 12:13 -0700
Re: America's life expectancy is dropping like never before. The Starmaker <starmaker@ix.netcom.com> - 2021-07-24 18:39 -0700
Re: America's life expectancy is dropping like never before. The Starmaker <starmaker@ix.netcom.com> - 2021-08-03 12:08 -0700
Re: America's life expectancy is dropping like never before. Paul Alsing <pnalsing@gmail.com> - 2021-08-03 12:44 -0700
Re: America's life expectancy is dropping like never before. Arindam Banerjee <banerjeeadda1234@gmail.com> - 2021-08-03 23:25 -0700
Re: America's life expectancy is dropping like never before. The Starmaker <starmaker@ix.netcom.com> - 2021-08-03 12:53 -0700
Re: America's life expectancy is dropping like never before. The Starmaker <starmaker@ix.netcom.com> - 2021-08-03 15:00 -0700
Re: America's life expectancy is dropping like never before. rbowman <bowman@montana.com> - 2021-07-20 08:03 -0600
Re: America's life expectancy is dropping like never before. The Starmaker <starmaker@ix.netcom.com> - 2021-07-20 09:30 -0700
Re: America's life expectancy is dropping like never before. Paul Alsing <pnalsing@gmail.com> - 2021-07-20 10:06 -0700
Re: America's life expectancy is dropping like never before. Clutterfreak <clutterfreakincarnate@gmail.com> - 2021-07-20 12:13 -0500
Re: America's life expectancy is dropping like never before. The Starmaker <starmaker@ix.netcom.com> - 2021-07-20 13:33 -0700
Re: America's life expectancy is dropping like never before. whodat <whodaat@void.nowgre.com> - 2021-07-20 12:08 -0500
Re: America's life expectancy is dropping like never before. "Byker" <byker@do~rag.net> - 2021-07-20 14:01 -0500
Re: America's life expectancy is dropping like never before. rbowman <bowman@montana.com> - 2021-07-20 21:26 -0600
Re: America's life expectancy is dropping like never before. "Byker" <byker@do~rag.net> - 2021-07-20 14:01 -0500
Re: America's life expectancy is dropping like never before. rbowman <bowman@montana.com> - 2021-07-20 21:30 -0600
Re: America's life expectancy is dropping like never before. Mainspring <MSpr@zeex.net> - 2021-07-21 00:05 -0400
Re: America's life expectancy is dropping like never before. chrisv <chrisv@nospam.invalid> - 2021-07-21 10:09 -0500
Re: America's life expectancy is dropping like never before. rbowman <bowman@montana.com> - 2021-07-21 19:45 -0600
Re: America's life expectancy is dropping like never before. Unruh <unruh@sjrb.ca> - 2021-07-22 02:02 +0000
Re: America's life expectancy is dropping like never before. rbowman <bowman@montana.com> - 2021-07-20 21:22 -0600
Re: How many planets are there? The Starmaker <starmaker@ix.netcom.com> - 2021-07-18 00:35 -0700
Re: How many planets are there? The Starmaker <starmaker@ix.netcom.com> - 2021-07-20 15:44 -0700
Re: How many planets are there? Paul Alsing <pnalsing@gmail.com> - 2021-07-20 16:22 -0700
Re: How many planets are there? The Starmaker <starmaker@ix.netcom.com> - 2021-07-21 10:02 -0700
Re: How many planets are there? The Starmaker <starmaker@ix.netcom.com> - 2021-07-21 10:19 -0700
Re: How many planets are there? Kurt Nicklas <kurtnicklas@gmail.com> - 2021-07-21 20:41 +0300
Re: How many planets are there? whodat <whodaat@void.nowgre.com> - 2021-07-21 14:05 -0500
Re: How many planets are there? The Starmaker <starmaker@ix.netcom.com> - 2021-07-21 14:04 -0700
Re: How many planets are there? whodat <whodaat@void.nowgre.com> - 2021-07-21 18:39 -0500
Re: How many planets are there? The Starmaker <starmaker@ix.netcom.com> - 2021-07-21 17:22 -0700
Re: How many planets are there? Paul Alsing <pnalsing@gmail.com> - 2021-07-21 17:31 -0700
Re: How many planets are there? Jim Pennino <jimp@gonzo.specsol.net> - 2021-07-21 20:52 -0700
Re: How many planets are there? Paul Alsing <pnalsing@gmail.com> - 2021-07-21 12:04 -0700
Re: How many planets are there? The Starmaker <starmaker@ix.netcom.com> - 2021-07-21 14:12 -0700
Re: How many planets are there? Paul Alsing <pnalsing@gmail.com> - 2021-07-21 14:35 -0700
Re: How many planets are there? The Starmaker <starmaker@ix.netcom.com> - 2021-07-21 22:58 -0700
Re: How many planets are there? Paul Alsing <pnalsing@gmail.com> - 2021-07-21 23:07 -0700
Re: How many planets are there? The Starmaker <starmaker@ix.netcom.com> - 2021-07-21 23:19 -0700
Re: How many planets are there? The Starmaker <starmaker@ix.netcom.com> - 2021-07-21 23:36 -0700
Re: How many planets are there? Paul Alsing <pnalsing@gmail.com> - 2021-07-22 10:39 -0700
Re: How many planets are there? The Starmaker <starmaker@ix.netcom.com> - 2021-07-22 13:39 -0700
Re: How many planets are there? The Starmaker <starmaker@ix.netcom.com> - 2021-07-22 23:15 -0700
Re: How many planets are there? Paul Alsing <pnalsing@gmail.com> - 2021-07-22 23:49 -0700
Re: How many planets are there? Paul Alsing <pnalsing@gmail.com> - 2021-07-23 00:06 -0700
Re: How many planets are there? The Starmaker <starmaker@ix.netcom.com> - 2021-07-23 08:43 -0700
Re: How many planets are there? Paul Alsing <pnalsing@gmail.com> - 2021-07-23 12:20 -0700
Re: How many planets are there? The Starmaker <starmaker@ix.netcom.com> - 2021-07-23 13:20 -0700
Re: How many planets are there? Paul Alsing <pnalsing@gmail.com> - 2021-07-23 15:18 -0700
Re: How many planets are there? The Starmaker <starmaker@ix.netcom.com> - 2021-07-23 15:58 -0700
Re: How many planets are there? The Starmaker <starmaker@ix.netcom.com> - 2021-07-23 20:50 -0700
Re: How many planets are there? Paul Alsing <pnalsing@gmail.com> - 2021-07-23 21:24 -0700
Re: How many planets are there? The Starmaker <starmaker@ix.netcom.com> - 2021-07-24 19:11 -0700
Re: How many planets are there? whodat <whodaat@void.nowgre.com> - 2021-07-24 22:30 -0500
Re: How many planets are there? The Starmaker <starmaker@ix.netcom.com> - 2021-07-25 10:27 -0700
Re: How many planets are there? "mitchr...@gmail.com" <mitchrae3323@gmail.com> - 2021-07-25 10:37 -0700
Re: How many planets are there? The Starmaker <starmaker@ix.netcom.com> - 2021-07-26 15:17 -0700
Re: How many planets are there? Paul Alsing <pnalsing@gmail.com> - 2021-07-26 17:03 -0700
Re: How many planets are there? Michael Moroney <moroney@world.std.spaamtrap.com> - 2021-07-26 20:55 -0400
Re: How many planets are there? The Starmaker <starmaker@ix.netcom.com> - 2021-07-26 18:50 -0700
Re: How many planets are there? Michael Moroney <moroney@world.std.spaamtrap.com> - 2021-07-27 19:08 -0400
Re: How many planets are there? The Starmaker <starmaker@ix.netcom.com> - 2021-07-26 18:48 -0700
Re: How many planets are there? Paul Alsing <pnalsing@gmail.com> - 2021-07-26 18:54 -0700
Re: How many planets are there? whodat <whodaat@void.nowgre.com> - 2021-07-26 21:38 -0500
Re: How many planets are there? The Starmaker <starmaker@ix.netcom.com> - 2021-07-26 15:23 -0700
Re: How many planets are there? Paul Alsing <pnalsing@gmail.com> - 2021-07-26 17:09 -0700
Re: How many planets are there? The Starmaker <starmaker@ix.netcom.com> - 2021-07-26 19:03 -0700
Re: How many planets are there? The Starmaker <starmaker@ix.netcom.com> - 2021-07-28 22:12 -0700
Re: How many planets are there? Paul Alsing <pnalsing@gmail.com> - 2021-07-28 23:14 -0700
Re: How many planets are there? Michael Moroney <moroney@world.std.spaamtrap.com> - 2021-07-29 09:39 -0400
Re: How many planets are there? Paul Alsing <pnalsing@gmail.com> - 2021-07-29 09:51 -0700
Re: How many planets are there? Michael Moroney <moroney@world.std.spaamtrap.com> - 2021-07-29 15:08 -0400
Re: How many planets are there? Paul Alsing <pnalsing@gmail.com> - 2021-07-29 12:28 -0700
Re: How many planets are there? Sergio <invaled@invalid.com> - 2021-07-29 17:46 -0500
Re: How many planets are there? Paul Alsing <pnalsing@gmail.com> - 2021-07-29 16:05 -0700
Re: How many planets are there? whodat <whodaat@void.nowgre.com> - 2021-07-29 18:13 -0500
Re: How many planets are there? Sergio <invaled@invalid.com> - 2021-07-29 19:18 -0500
Re: How many planets are there? whodat <whodaat@void.nowgre.com> - 2021-07-29 23:09 -0500
Re: How many planets are there? Jim Pennino <jimp@gonzo.specsol.net> - 2021-07-29 17:36 -0700
Re: How many planets are there? Michael Moroney <moroney@world.std.spaamtrap.com> - 2021-07-30 01:11 -0400
Re: How many planets are there? The Starmaker <starmaker@ix.netcom.com> - 2021-07-29 10:23 -0700
Re: How many planets are there? Michael Moroney <moroney@world.std.spaamtrap.com> - 2021-07-29 15:27 -0400
Re: How many planets are there? The Starmaker <starmaker@ix.netcom.com> - 2021-07-31 13:05 -0700
Re: How many planets are there? whodat <whodaat@void.nowgre.com> - 2021-07-31 16:03 -0500
Re: How many planets are there? The Starmaker <starmaker@ix.netcom.com> - 2021-07-31 20:18 -0700
Re: How many planets are there? Paul Alsing <pnalsing@gmail.com> - 2021-07-31 20:34 -0700
Re: How many planets are there? The Starmaker <starmaker@ix.netcom.com> - 2021-08-01 00:02 -0700
Re: How many planets are there? The Starmaker <starmaker@ix.netcom.com> - 2021-08-02 13:34 -0700
Re: How many planets are there? The Starmaker <starmaker@ix.netcom.com> - 2021-08-02 13:40 -0700
Re: How many planets are there? Paul Alsing <pnalsing@gmail.com> - 2021-08-02 15:48 -0700
Re: How many planets are there? Michael Moroney <moroney@world.std.spaamtrap.com> - 2021-07-31 23:38 -0400
Re: How many planets are there? Michael Moroney <moroney@world.std.spaamtrap.com> - 2021-07-23 09:07 -0400
Re: How many planets are there? Clutterfreak <clutterfreakincarnate@gmail.com> - 2021-07-23 12:59 -0500
Re: How many planets are there? Sylvia Else <sylvia@email.invalid> - 2021-07-23 17:22 +1000
Re: How many planets are there? Jackson Sprat <jacksprat@kewlmail.com> - 2021-07-23 11:13 -0400
Re: How many planets are there? Clutterfreak <clutterfreakincarnate@gmail.com> - 2021-07-22 11:18 -0500
Re: How many planets are there? whodat <whodaat@void.nowgre.com> - 2021-07-20 22:27 -0500
Re: How many planets are there? The Starmaker <starmaker@ix.netcom.com> - 2021-07-22 23:17 -0700
Re: How many planets are there? Siri Cruise <chine.bleu@yahoo.com> - 2021-07-22 23:46 -0700
Re: How many planets are there? Jackson Sprat <jacksprat@kewlmail.com> - 2021-07-23 11:13 -0400
Re: How many planets are there? whodat <whodaat@void.nowgre.com> - 2021-07-23 10:47 -0500
Re: How many planets are there? Vance <vancen@gmail.com> - 2021-07-26 03:22 +0000
Re: How many planets are there? Siri Cruise <chine.bleu@yahoo.com> - 2021-07-26 01:10 -0700
Re: How many planets are there? The Starmaker <starmaker@ix.netcom.com> - 2021-07-26 09:49 -0700
Re: How many planets are there? "Byker" <byker@do~rag.net> - 2021-07-26 21:31 -0500
Re: How many planets are there? The Starmaker <starmaker@ix.netcom.com> - 2021-07-27 13:08 -0700
Re: How many planets are there? whodat <whodaat@void.nowgre.com> - 2021-07-27 16:18 -0500
Re: How many planets are there? The Starmaker <starmaker@ix.netcom.com> - 2021-07-27 22:05 -0700
Re: How many planets are there? whodat <whodaat@void.nowgre.com> - 2021-07-28 10:36 -0500
Re: How many planets are there? The Starmaker <starmaker@ix.netcom.com> - 2021-07-28 10:19 -0700
Re: How many planets are there? whodat <whodaat@void.nowgre.com> - 2021-07-28 14:47 -0500
Re: How many planets are there? The Starmaker <starmaker@ix.netcom.com> - 2021-07-27 14:28 -0700
Re: How many planets are there? The Starmaker <starmaker@ix.netcom.com> - 2021-07-27 14:30 -0700
Re: How many planets are there? Vance <vancen@gmail.com> - 2021-07-26 23:51 +0000
Re: How many planets are there? Vance <vancen@gmail.com> - 2021-08-04 03:59 +0000
Re: How many planets are there? Vance <vancen@gmail.com> - 2021-08-31 17:56 +0000
Re: How many planets are there? Vance <vancen@gmail.com> - 2021-11-16 22:39 +0000
Re: How many planets are there? Sylvia Else <sylvia@email.invalid> - 2021-07-21 10:49 +1000
Re: How many planets are there? whodat <whodaat@void.nowgre.com> - 2021-07-18 10:21 -0500
Re: How many planets are there? Jonathan <writeInstead@Gmail.com> - 2021-07-18 17:58 -0400
Re: How many planets are there? The Starmaker <starmaker@ix.netcom.com> - 2021-07-20 09:34 -0700
Re: How many planets are there? whodat <whodaat@void.nowgre.com> - 2021-07-20 12:02 -0500
Re: How stupid is starfucktard? Orni Thopter <flapping@wi.ngs> - 2021-07-18 13:48 -0700
What is the name of the 9th protester in Seattle ? Jeff-Relf.Me @. - 2021-07-18 14:24 -0700
Re: How many planets are there? Jonathan <writeInstead@Gmail.com> - 2021-07-18 17:56 -0400
Re: How many planets are there? The Starmaker <starmaker@ix.netcom.com> - 2021-07-20 09:48 -0700
Re: How many planets are there? Jonathan <writeInstead@Gmail.com> - 2021-07-20 18:50 -0400
Re: How many planets are there? "mitchr...@gmail.com" <mitchrae3323@gmail.com> - 2021-07-19 11:14 -0700
Re: How many planets are there? Mi Na <ya12983@mail.com> - 2021-07-22 02:28 -0700
Re: How many planets are there? Andy Everett <andyeverett57@gmail.com> - 2021-07-29 10:58 -0700
many He Llo <rob999999999@yahoo.com> - 2021-08-12 03:00 -0700
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