Is there a teapot in the trunk? https://en.wikipedia.org/wiki/Russell%27s_teapot
It'd be nice to finally get this Russell conundrum out of the way.
Search found 45 matches
- Sat Feb 10, 2018 3:07 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Roadster, Starman, Planet Earth (2018 Feb 10)
- Replies: 40
- Views: 58826
- Tue Jan 02, 2018 3:06 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Unexpected X-Rays from Perseus... (2018 Jan 02)
- Replies: 26
- Views: 15676
Re: APOD: Unexpected X-Rays from Perseus... (2018 Jan 02)
Practically a Yin-Yang.
The lack of fine structure is remarkable, and exactly what you'd expect for non-collisional particles.
The lack of fine structure is remarkable, and exactly what you'd expect for non-collisional particles.
- Fri Jul 08, 2016 1:15 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: The Swirling Core of the Crab Nebula (2016 Jul 08)
- Replies: 15
- Views: 3292
Re: APOD: The Swirling Core of the Crab Nebula (2016 Jul 08)
Looks like there's some serious energy there.
3 light years seems a little too close.
I think I'd rather stand within 3 feet of a mile long coal train doing 60mph.
3 light years seems a little too close.
I think I'd rather stand within 3 feet of a mile long coal train doing 60mph.
- Thu Jun 16, 2016 7:48 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: GW151226: A Second Confirmed Source ... (2016 Jun 15)
- Replies: 51
- Views: 10465
Re: APOD: GW151226: A Second Confirmed Source ... (2016 Jun 15)
The 2 holes switch places on the order of every (66 x π/2) km /(300,000 km/s) ~ 1/3,000 seconds corresponding to ~ 3,000 Hz which should correspond to the highest possible gravitational wave frequency. So we're hearing years (orbits) go by. Doesn't seem to be much distortion of the spherical holes ...
- Thu Jun 16, 2016 2:26 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: GW151226: A Second Confirmed Source ... (2016 Jun 15)
- Replies: 51
- Views: 10465
Re: APOD: GW151226: A Second Confirmed Source ... (2016 Jun 15)
That chirp hits a mighty high frequency for two objects that are kilometers in diameter.
- Wed Jun 15, 2016 1:12 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: GW151226: A Second Confirmed Source ... (2016 Jun 15)
- Replies: 51
- Views: 10465
Re: APOD: APOD Placeholder (2016 Jun 15)
Is that the moon at the top right of the placeholder image?
- Sat Apr 23, 2016 1:54 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Milky Way in Moonlight (2016 Apr 23)
- Replies: 7
- Views: 2859
Re: APOD: Milky Way in Moonlight (2016 Apr 23)
Nice shot. Tafreshi must have a big lens and a high megapixel camera to keep the moon overexposure from making a big nasty blob.
- Wed Sep 16, 2015 12:55 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Bright Spots Resolved in Occator on... (2015 Sep 16)
- Replies: 24
- Views: 5447
Re: APOD: Bright Spots Resolved in Occator on... (2015 Sep 1
Higher resolution please.
At 40 meters per pixel it's just not possible to tell if those lines that look like fissures are fissures.
About 0.5 meter per pixel should do the job.
Of course that's months, or more likely, years away, if ever.
At 40 meters per pixel it's just not possible to tell if those lines that look like fissures are fissures.
About 0.5 meter per pixel should do the job.
Of course that's months, or more likely, years away, if ever.
- Thu Aug 27, 2015 10:43 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: The Large Cloud of Magellan (2015 Aug 27)
- Replies: 32
- Views: 6874
Re: APOD: The Large Cloud of Magellan (2015 Aug 27)
Nice Shot!
This'll make a nice replacement for Ursa Major on my 2' display.
This'll make a nice replacement for Ursa Major on my 2' display.
- Wed Aug 26, 2015 10:12 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Collinder 399: The Coat Hanger (2015 Aug 26)
- Replies: 34
- Views: 6557
Re: APOD: Collinder 399: The Coat Hanger (2015 Aug 26)
So are the red far and the blue close, vice versa, or some mixture of the two?
- Sat Jul 18, 2015 11:33 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Fly Over Pluto (2015 Jul 18)
- Replies: 37
- Views: 7234
Re: APOD: Fly Over Pluto (2015 Jul 18)
Convection cells, with less dense material concentrated at the edges?
Is Sputnik mostly water or mostly CO?
Heat of fusion for CO is about a tenth that of water.
Is Sputnik mostly water or mostly CO?
Heat of fusion for CO is about a tenth that of water.
- Wed Jul 15, 2015 11:21 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Pluto Resolved (2015 Jul 15)
- Replies: 46
- Views: 10083
Re: APOD: Pluto Resolved (2015 Jul 15)
If we renamed Pluto "the planetoid of love", it might cool some of the more ardent claims that Pluto is a planet. We'd just have to believe that the spot really does look like a heart.wsx wrote:LOL, "iconic heart"...
- Mon Jul 13, 2015 10:55 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Last Look at Pluto's Charon Side (2015 Jul 13)
- Replies: 32
- Views: 6950
Re: APOD: Last Look at Pluto's Charon Side (2015 Jul 13)
I was expecting something more Vesta-like. That atmosphere has clearly been messing with Pluto's surface features. It's probably time to start planning an orbiter mission. That should prove quite a challenge with Charon messing up the gravity field as it does, and all those other little moonlets to ...
- Sun Jul 12, 2015 12:28 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: New Horizons Launch to Pluto (2015 Jul 12)
- Replies: 11
- Views: 3186
Re: APOD: New Horizons Launch to Pluto (2015 Jul 12)
That's a very nice example of a shot best taken with a remote camera.
I'd not like to be standing there in the open when the rocket took off.
I'd not like to be standing there in the open when the rocket took off.
- Mon Jun 29, 2015 12:32 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Sunspot Group AR 2339 Crosses the Sun (2015 Jun 29)
- Replies: 11
- Views: 4411
Re: APOD: Sunspot Group AR 2339 Crosses the Sun (2015 Jun 29
Looks like it left the front of the sun in late middle age, before all the little spotlets start to disappear. Did 2339 make it around for a renumbered, second trip across the front face? Beautiful animation. APOD would do well to post a few more like this, as they don't all evolve the same way. Wie...
- Mon Jun 08, 2015 11:14 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: The Milky Way over the Temple of... (2015 Jun 08)
- Replies: 14
- Views: 6398
Re: APOD: The Milky Way over the Temple of... (2015 Jun 08)
radio the staff at the Temple of Poseidon to turn their search lights on again! A few green lasers would make a nice addition. If you're going to go wild with lighting like this, you might as well take it past the limit of movie theatres and office towers. I think it's kind of nice. Light pollution...
- Wed May 20, 2015 11:29 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: A Cliff Looming on Comet 67P (2015 May 20)
- Replies: 15
- Views: 3481
Re: APOD: A Cliff Looming on Comet 67P (2015 May 20)
That is very disturbing.
Landscapes are not supposed to look like that.
Landscapes are not supposed to look like that.
- Tue Jan 20, 2015 9:08 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Approaching Asteroid Ceres (2015 Jan 20)
- Replies: 29
- Views: 39440
Re: APOD: Approaching Asteroid Ceres (2015 Jan 20)
Jan. 22, 2014: Scientists using the Herschel space observatory have made the first definitive detection of water vapor on the largest and roundest object in the asteroid belt, dwarf planet Ceres. http://science.nasa.gov/science-news/science-at-nasa/2014/22jan_ceres/ January 20, 2015 ... First Hubbl...
- Tue Jan 20, 2015 12:52 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Approaching Asteroid Ceres (2015 Jan 20)
- Replies: 29
- Views: 39440
Re: APOD: Approaching Asteroid Ceres (2015 Jan 20)
Is it just the phase that makes it look so oblate?
Hubble image doesn't look that squashed: http://phys.org/news/2011-07-minor-plan ... earth.html
Hubble image doesn't look that squashed: http://phys.org/news/2011-07-minor-plan ... earth.html
- Thu Jan 08, 2015 2:18 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Stars and Dust in Corona Australis (2015 Jan 08)
- Replies: 30
- Views: 36585
Re: APOD: Stars and Dust in Corona Australis (2015 Jan 08)
Wow!
I wonder if the Hale telescope could have matched this back in the day, had it been in the proper hemisphere.
Pretty good imagery for any telescope, far less a 32 incher.
I wonder if the Hale telescope could have matched this back in the day, had it been in the proper hemisphere.
Pretty good imagery for any telescope, far less a 32 incher.
- Tue Dec 23, 2014 2:54 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: The Cliffs of Comet CG (2014 Dec 23)
- Replies: 70
- Views: 81159
Re: APOD: The Cliffs of Comet CG (2014 Dec 23)
Despite a density of 0.4 g/cc, less than half that of water, (http://sci.esa.int/rosetta/14615-comet-67p/), I'm still not seeing a whole lot of porosity in the structure.
Ice foam cliffs, low density clathrates?
Ice foam cliffs, low density clathrates?
- Thu Dec 18, 2014 1:49 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: NGC 7331 and Beyond (2014 Dec 18)
- Replies: 74
- Views: 88073
Re: APOD: NGC 7331 and Beyond (2014 Dec 18)
Small as in a 150 mm refractor, or as in a 20" Cassegrain?enhanced in this sharp image from a small telescope
I don't see that info at the Hallas' website.
Regardless, nice shot! Someone has dark skies.
- Mon Nov 24, 2014 1:17 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Tornado and Rainbow Over Kansas (2014 Nov 23)
- Replies: 20
- Views: 171217
Re: APOD: Tornado and Rainbow Over Kansas (2014 Nov 23)
Do a search on "speeding". APOD'S been CMB Dipole: Speeding Through the Universe ten times, and worth it every time.mtbdudex wrote:I may be in my 50's but thought this looked familiar....and posted just 3 years ago, that's kinda short turnaround for repeating, no?
- Sun Nov 23, 2014 11:20 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Tornado and Rainbow Over Kansas (2014 Nov 23)
- Replies: 20
- Views: 171217
Re: APOD: Tornado and Rainbow Over Kansas (2014 Nov 23)
Internet Classic!
- Fri Nov 14, 2014 1:49 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Welcome to a Comet (2014 Nov 14)
- Replies: 40
- Views: 260731
Re: APOD: Welcome to a Comet (2014 Nov 14)
Just look at how fractured that rock is! I wouldn't want to try climbing it at anything close to 1 gravity. Wonder if pressure of melting volatiles is what caused the cracking, or just collision/thermal expansion. Given what looks to be regular rock surface here, the smooth regions elsewhere have go...