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Groups > sci.physics > #593846 > unrolled thread
| Started by | The Starmaker <starmaker@ix.netcom.com> |
|---|---|
| First post | 2016-08-19 13:57 -0700 |
| Last post | 2016-08-24 07:10 -0400 |
| Articles | 2 on this page of 22 — 6 participants |
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For third graders only The Starmaker <starmaker@ix.netcom.com> - 2016-08-19 13:57 -0700
Re: For third graders only Sergio <invalid@invalid.com> - 2016-08-19 16:52 -0500
Re: For third graders only The Starmaker <starmaker@ix.netcom.com> - 2016-08-19 22:43 -0700
Re: For third graders only Sergio <invalid@invalid.com> - 2016-08-20 09:12 -0500
Re: For third graders only The Starmaker <starmaker@ix.netcom.com> - 2016-08-20 11:56 -0700
Re: For third graders only Sergio <invalid@invalid.com> - 2016-08-20 17:09 -0500
Re: For third graders only The Starmaker <starmaker@ix.netcom.com> - 2016-08-20 11:06 -0700
Re: For third graders only The Starmaker <starmaker@ix.netcom.com> - 2016-08-20 11:45 -0700
Re: For third graders only Sergio <invalid@invalid.com> - 2016-08-20 17:15 -0500
Re: For third graders only Sergio <invalid@invalid.com> - 2016-08-20 19:43 -0500
Re: For third graders only "Bast" <fakename@nomail.invalid> - 2016-08-20 08:31 -0400
Re: For third graders only "Mike Dworetsky" <platinum198@pants.btinternet.com> - 2016-08-20 22:46 +0100
Re: For third graders only "Bast" <fakename@nomail.invalid> - 2016-08-21 05:48 -0400
Re: For third graders only "Mike Dworetsky" <platinum198@pants.btinternet.com> - 2016-08-21 12:15 +0100
Re: For third graders only "Bast" <fakename@nomail.invalid> - 2016-08-21 10:32 -0400
Re: For third graders only "Mike Dworetsky" <platinum198@pants.btinternet.com> - 2016-08-21 22:30 +0100
Re: For third graders only Hägar <hsahm@yahoo.com> - 2016-08-21 12:29 -0700
Re: For third graders only The Starmaker <starmaker@ix.netcom.com> - 2016-08-21 12:41 -0700
Re: For third graders only Sergio <invalid@invalid.com> - 2016-08-21 17:04 -0500
Re: For third graders only "Bast" <fakename@nomail.invalid> - 2016-08-22 15:12 -0400
Re: For third graders only "Michael F. Stemper" <michael.stemper@gmail.com> - 2016-08-23 09:21 -0500
Re: For third graders only "Bast" <fakename@nomail.invalid> - 2016-08-24 07:10 -0400
Page 2 of 2 — ← Prev page 1 [2]
| From | "Michael F. Stemper" <michael.stemper@gmail.com> |
|---|---|
| Date | 2016-08-23 09:21 -0500 |
| Message-ID | <nphm4l$t9c$1@dont-email.me> |
| In reply to | #594215 |
On 2016-08-22 14:12, Bast wrote: > Sergio wrote: >> On 8/21/2016 2:29 PM, Hägar wrote: >>> "Bast" wrote in message news:np9ij8$ar5$1@dont-email.me... >>> Sergio wrote: >>>> On 8/19/2016 3:57 PM, The Starmaker wrote: >>>> But, how can an air conditioner work in space? >>>> there is no air to push around >> >>> How do you get rid of heat, in a vacuum ? >> >> you radiate it out, black body radiation into space, >> everyone knows that >> proportional to the 4th power of the difference in Kelvin >> >> http://www.engineeringtoolbox.com/radiation-heat-transfer-d_431.html > > But you have to radiate it out faster than it coming in. > And how does a sealed system radiate heat ? Sergio gave you the answer to that question: blackbody radiation, which radiates power proportionally to the fourth power of absolute temperature. > Look for yourself at any apollo spacesuit picture, and then you tell me how > anything can be radiated (in very simple terms) WITHOUT a radiator ? Are you even aware that most so-called "radiators": <http://achildgrows.com/wp-content/uploads/2010/11/radiator.jpg> <http://www.celmesrl.com/wp-content/uploads/2013/04/120019501-2.jpg> don't actually radiate, but work via convection, which only happens when there is a surrounding fluid, such as air or water? -- Michael F. Stemper The name of the story is "A Sound of Thunder". It was written by Ray Bradbury. You're welcome.
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| From | "Bast" <fakename@nomail.invalid> |
|---|---|
| Date | 2016-08-24 07:10 -0400 |
| Message-ID | <npjvfl$s4i$1@dont-email.me> |
| In reply to | #594312 |
Michael F. Stemper wrote: > On 2016-08-22 14:12, Bast wrote: >> Sergio wrote: >>> On 8/21/2016 2:29 PM, Hägar wrote: >>>> "Bast" wrote in message news:np9ij8$ar5$1@dont-email.me... >>>> Sergio wrote: >>>>> On 8/19/2016 3:57 PM, The Starmaker wrote: > >>>>> But, how can an air conditioner work in space? >>>>> there is no air to push around >>> >>>> How do you get rid of heat, in a vacuum ? >>> >>> you radiate it out, black body radiation into space, >>> everyone knows that >>> proportional to the 4th power of the difference in Kelvin >>> >>> http://www.engineeringtoolbox.com/radiation-heat-transfer-d_431.html >> >> But you have to radiate it out faster than it coming in. >> And how does a sealed system radiate heat ? > > Sergio gave you the answer to that question: blackbody radiation, > which radiates power proportionally to the fourth power of > absolute temperature. > >> Look for yourself at any apollo spacesuit picture, and then you tell >> me how anything can be radiated (in very simple terms) WITHOUT a >> radiator ? > > Are you even aware that most so-called "radiators": > <http://achildgrows.com/wp-content/uploads/2010/11/radiator.jpg> > <http://www.celmesrl.com/wp-content/uploads/2013/04/120019501-2.jpg> > don't actually radiate, but work via convection, which only happens > when there is a surrounding fluid, such as air or water? Are you claiming there was water and air on the moon in the late 60's ?
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