How blue is the sky?

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How did God create the sky?

Mike Hanle y (mike), Saturday, 29 May 2004 11:07 (twenty-two years ago)

i don't know - but apparently boffins have worked out that it's getting less and less blue and within about 50-100 years it'll just be a sickly yellow/gray colour.

dog latin (dog latin), Saturday, 29 May 2004 11:21 (twenty-two years ago)

Isn't the sky blue because air reflects the colour blue better than other colours? Do you mean that the constitution of air is going to change?

Tuomas (Tuomas), Saturday, 29 May 2004 11:24 (twenty-two years ago)

I DON'T KNOW! ASK SOMEONE ELSE!

;-)

dog latin (dog latin), Saturday, 29 May 2004 11:29 (twenty-two years ago)

bluesky@base58.com

ken c (ken c), Saturday, 29 May 2004 11:52 (twenty-two years ago)

"Why is the sky blue", asked once my four-year-old son from my friend, a physicist. Who, after furrowing his brow for a few secs, replied thusly: "It's those little things called fluctuations who do that."

t\'\'t (t\'\'t), Saturday, 29 May 2004 12:32 (twenty-two years ago)

Light scattering off particles in the atmosphere is called Rayleigh scattering. The scattering gets considerably stronger for colours with smaller wavelengths. Blue is the smallest wavelength in the visible spectrum, so there you go.
If these boffins are saying that it's getting less blue and will become yellow/gray, I'd guess that's because there will be a bunch of crap in the atmosphere or clouds which happens to absorb blue light, so we'll be left with the other colours.

Barry Bruner (Barry Bruner), Saturday, 29 May 2004 15:42 (twenty-two years ago)

I wrote my name across your sky
I wrote my name across your sky
I wrote my na-aa-aame
across your sky-yy-yy

Kingfish Disraeli (Kingfish), Sunday, 30 May 2004 06:31 (twenty-two years ago)

Generally varies between 3200K and 12000K in color temperature, depending on time of day, position of the sun, cloud cover, and other typical factors.

Girolamo Savonarola, Sunday, 30 May 2004 16:01 (twenty-two years ago)

five years pass...

No planes = XDDDDDDDDDD

maybe rabbits feel the need to play up their 'lynchian' qualities (acoleuthic), Sunday, 18 April 2010 22:20 (sixteen years ago)

THIS IS ENGLAND

http://sphotos.ak.fbcdn.net/hphotos-ak-snc3/hs519.snc3/27265_672504389020_36910239_42458637_5369311_n.jpg

maybe rabbits feel the need to play up their 'lynchian' qualities (acoleuthic), Sunday, 18 April 2010 22:40 (sixteen years ago)

ENGLAND

http://sphotos.ak.fbcdn.net/hphotos-ak-ash1/hs499.ash1/27265_672504344110_36910239_42458629_4307583_n.jpg

maybe rabbits feel the need to play up their 'lynchian' qualities (acoleuthic), Sunday, 18 April 2010 22:43 (sixteen years ago)

OH MY ENGLAND

http://sphotos.ak.fbcdn.net/hphotos-ak-snc3/hs519.snc3/27265_672504349100_36910239_42458630_351192_n.jpg

maybe rabbits feel the need to play up their 'lynchian' qualities (acoleuthic), Sunday, 18 April 2010 22:43 (sixteen years ago)

MAYBE A SLIGHTLY BETTER ANGLE Y/N BUT YEAH ENGLAND

http://sphotos.ak.fbcdn.net/hphotos-ak-snc3/hs519.snc3/27265_672504359080_36910239_42458631_3377747_n.jpg

maybe rabbits feel the need to play up their 'lynchian' qualities (acoleuthic), Sunday, 18 April 2010 23:41 (sixteen years ago)

YEAH WE GET THAT BLUE STUFF IN THE USA TOO SOMETIMES, L0U, BUT WE DON'T SNAP TOURISTY PHOTOS OF IT AND BIG IT UP LIKE WE JUST WITNESSED HALLEY'S COMET OR THE STAR OF BETHLEHEM OR SUMMAT

screamin' lord sufj (unregistered), Monday, 19 April 2010 00:40 (sixteen years ago)

Haha, exactly. It's like the Patrick McManus story where he said his relatives from LA came to Idaho to visit him and, after he convinced him they'd be able to breathe outside their car, they were taking pictures of how invisible the air was.

kissogram powers (Abbott), Monday, 19 April 2010 00:41 (sixteen years ago)

he convinced him = he convinced his relatives

kissogram powers (Abbott), Monday, 19 April 2010 00:42 (sixteen years ago)

ha, the McManus story in turn reminds me of the E.B. White essay where he goes on a pilgrimage to Thoreau's cabin, and he bottles up some of the Walden Pond air for future use. on the plane ride home, he offers a bottle to some stuffy businessman, who goes into a coughing fit as soon as he takes a breath of the fresh woodland air.

the moral of these stories is, of course, congratulation to British ilxors for their rediscovery of mother nature.

screamin' lord sufj (unregistered), Monday, 19 April 2010 00:53 (sixteen years ago)

AT least the top part of it.

kissogram powers (Abbott), Monday, 19 April 2010 01:28 (sixteen years ago)

aw cut me a break guys, this is SPECIAL

maybe rabbits feel the need to play up their 'lynchian' qualities (acoleuthic), Monday, 19 April 2010 09:36 (sixteen years ago)

I'm with you on this one, LJ. Post more pls.

snakebite and a passable pinot noir (Upt0eleven), Monday, 19 April 2010 09:39 (sixteen years ago)

There aren't really any more unless you want to see yet more snaps of London Bridge station

...but if any of you guys have taken any

maybe rabbits feel the need to play up their 'lynchian' qualities (acoleuthic), Monday, 19 April 2010 09:43 (sixteen years ago)

Volcanic sunset in the Peak District, Saturday evening:

http://parwich.files.wordpress.com/2010/04/ashsunset800.jpg

Many areas could enjoy a spectacular sunset. Eruptions usually created what experts call a ‘volcanic aerosol’ - a colourful mixture of ash and sulphur compounds - in the stratosphere. This scatters an invisible blue glow which, when mixed with the red light of the setting sun, produces a ‘volcanic lavender’, or vivid crimson/violet hue.

mike t-diva, Monday, 19 April 2010 09:53 (sixteen years ago)

(Taken by my beloved, that one.)

mike t-diva, Monday, 19 April 2010 09:56 (sixteen years ago)

T/S: English Sky vs American Sky

MPx4A, Monday, 19 April 2010 09:59 (sixteen years ago)

No planes = XDDDDDDDDDD

lllame

Big Fate (as Alvin 'Xzibit' Joiner) (history mayne), Monday, 19 April 2010 10:04 (sixteen years ago)

sorry to everyone who wished to fly planes but this thread is not for you

THE GREAT WIDE ENDLESS SOUTHWARK HORIZON EH GUYS

maybe rabbits feel the need to play up their 'lynchian' qualities (acoleuthic), Monday, 19 April 2010 10:16 (sixteen years ago)

Montana can stuff it

maybe rabbits feel the need to play up their 'lynchian' qualities (acoleuthic), Monday, 19 April 2010 10:16 (sixteen years ago)

http://farm2.static.flickr.com/1103/1398184887_8f7026df7d.jpg

Ned Trifle II, Monday, 19 April 2010 10:28 (sixteen years ago)

very nice! although you can see a few vapour trails in a couple...the point of this week has been the sheer unearthly bluenesss

maybe rabbits feel the need to play up their 'lynchian' qualities (acoleuthic), Monday, 19 April 2010 10:29 (sixteen years ago)

hadn't even occurred to me to look up and appreciate no trails. but i'm almost missing the 'st andrews x' you frequently get in the north/north-east london sky.

mdskltr (blueski), Monday, 19 April 2010 10:39 (sixteen years ago)

The American sky is a nothing sky; it's been found out.

MPx4A, Monday, 19 April 2010 10:58 (sixteen years ago)

Was clear this weekend, but it's back to normal grey overcast today.
I blame the police helicopter that went over!

not_goodwin, Monday, 19 April 2010 11:02 (sixteen years ago)

Saw a huge perfectly formed red crucifix above Chiswick High St once, formed by two vapour trails lit up by the evening sun.

I found this tremendously visually exciting but no one else seemed interested.

Remember me, but o! forget my feet (GamalielRatsey), Monday, 19 April 2010 11:06 (sixteen years ago)

HE HAS PUT HIS SIGN IN THE SKY

maybe rabbits feel the need to play up their 'lynchian' qualities (acoleuthic), Monday, 19 April 2010 11:09 (sixteen years ago)

(brackenbury village area, hammersmith)

koogs, Monday, 19 April 2010 12:54 (sixteen years ago)

^^^^amazing

also the ash gave the sun a sort of fuzzy, hazy quality without decreasing its brightness - which made everything even more psychedelic and wondrous

maybe rabbits feel the need to play up their 'lynchian' qualities (acoleuthic), Monday, 19 April 2010 12:56 (sixteen years ago)

the point of this week has been the sheer unearthly bluenesss

oh,sorry, right you are...how about this? Nice bit of Leicester architecture included free of charge.
http://farm3.static.flickr.com/2506/4150662247_63935a55c9.jpg

Ned Trifle II, Monday, 19 April 2010 13:27 (sixteen years ago)

(really need to read threads before posting)

aw cut me a break guys, this is SPECIAL

Agreed. This is what it look like normally round these parts.

http://farm2.static.flickr.com/1132/997378892_f5f73d4912.jpg

Ned Trifle II, Monday, 19 April 2010 13:30 (sixteen years ago)

This sort of luminous blue really is a superb colour isn't it (xpost)

BAN PLANES

maybe rabbits feel the need to play up their 'lynchian' qualities (acoleuthic), Monday, 19 April 2010 13:31 (sixteen years ago)

Is this a thing b/c England is so small? A sky free of contrails seems pretty normal to me but if there's one thing we gots in Amurica, it's airspace.

Ask foreigners and they will tell you the gospel comes from America. (Laurel), Monday, 19 April 2010 13:54 (sixteen years ago)

we don't need to tip the airspace everytime we see it though.

show me your buccina (ken c), Monday, 19 April 2010 14:00 (sixteen years ago)

koogs, i can't view your flickr stream.

not_goodwin, Monday, 19 April 2010 14:01 (sixteen years ago)

Or do all of you just live underneath airport approaches?

Ask foreigners and they will tell you the gospel comes from America. (Laurel), Monday, 19 April 2010 14:03 (sixteen years ago)

http://en.wikipedia.org/wiki/Airstrip_One

joe, Monday, 19 April 2010 14:09 (sixteen years ago)

can you see the embedded images? (i can, obv, and i thought they are visible if you embed them using the flickr static addresses regardless of privacy settings)

have made them public now anyway.

koogs, Monday, 19 April 2010 14:09 (sixteen years ago)

English sky is a 24/7 airport approach - to have that taken away and some of the most insane April weather in the history of Aprilness granted is kinda happy-making

maybe rabbits feel the need to play up their 'lynchian' qualities (acoleuthic), Monday, 19 April 2010 14:09 (sixteen years ago)

> Or do all of you just live underneath airport approaches?

i think the plane altitude matters - i don't see any contrails on the heathrow incoming flightpath, maybe because everything's too low by that time. i do see them on the heathrow departure flightpath though - ascent is much steeper.

koogs, Monday, 19 April 2010 14:13 (sixteen years ago)

wikipedia: Exhaust vapour trails or contrails usually occur above 8000 metres (26,000 feet). where the temperature is below -40°C (-40°F).

koogs, Monday, 19 April 2010 14:16 (sixteen years ago)

I live about as far as it's possible to be from an active commercial airport* in the UK (roughly equidistant from 4 of them at abt 60 miles away) and it's pretty unusual to get a completely contrail-free sky. It's probably a lot more so nearer airports, though - I'd admired the empty blueness of the sky lately but hadn't stopped to think why it was unusual until this thread.

(* tried to choose my words carefully as we do have an airfield on the edge of town with the grand total of 2 commercial flights a week. considerably nearer to some air force bases but most of the air force traffic over this area seems to be either first thing in the morning or late evening, not throughout the day)

falling while carrying an owl (a passing spacecadet), Monday, 19 April 2010 14:29 (sixteen years ago)

My friend in Southall rang me today and said that all of her relatives living directly under the Heathrow flightpath can't believe their luck and are dreading the return of the noise.

show us on the doll where the hotdish was served (suzy), Monday, 19 April 2010 14:34 (sixteen years ago)

Wow. In that case I really appreciate your skies this week too! In my memory, jet trails are rare and exciting b/c they're signs of the larger world in which people I don't even know are going places far, far away. lol Midwest.

Ask foreigners and they will tell you the gospel comes from America. (Laurel), Monday, 19 April 2010 14:35 (sixteen years ago)

I'd admired the empty blueness of the sky lately but hadn't stopped to think why it was unusual until this thread

I had a sudden epiphany while playing cricket yesterday. My teammates were treated to some Keatsian musings.

maybe rabbits feel the need to play up their 'lynchian' qualities (acoleuthic), Monday, 19 April 2010 14:37 (sixteen years ago)

We're on the approach to EMA and BHX. I guess we see planes going to Manchester and Scotland too. We don't hear much noise but there's rarely a sky without a plane in it. UNTIL NOW...

Ned Trifle II, Monday, 19 April 2010 14:52 (sixteen years ago)

taken on a summer morning in chicago:

http://farm3.static.flickr.com/2489/3815763251_eb37ede738.jpg

JuliaA, Monday, 19 April 2010 16:32 (sixteen years ago)

there are often planes visible at very high altitude over london, probably transatlantic flights to/from holland/northern germany i'd guess?

nakhchivan, Monday, 19 April 2010 19:59 (sixteen years ago)

nice pics everywhere. yeah me and my friend were talking about the no vapour trails thing at the weekend, unfortunately neither of us had our cameras with us.

i live forty minutes away from manchester airport so yeah, we noticed it all right.

also after watching plenty of sunsets lately, i had never realised how fast it happens!

bracken free ditch (Ste), Monday, 19 April 2010 20:01 (sixteen years ago)

Britain From Above: GPS traces of the 7500 aircraft that traverse Britain daily (with ~1 minute video)

Most scheduled flights, even apart from terminal airports, follow flight lanes defined by navigation aids like VOR stations, with rules (such as northbound flights fly at odd-multiples of 1000 feet) to aid traffic separation. And parts of Britain over military facilities are restricted airspace.

Britain gets a lot more traffic than you might expect from usual map projections of flight routes, as it lies under great circle routes from Europe and the Mid-east to North America.

Sanpaku, Monday, 19 April 2010 21:31 (sixteen years ago)

tomorrow may well be the last day of clear skies

nakhchivan, Monday, 19 April 2010 21:34 (sixteen years ago)

https://www.youtube.com/watch?v=K-4TB47N3_Y

Sanpaku, Monday, 19 April 2010 21:36 (sixteen years ago)

<3 nature on some 60s art school acid trip

the big pink suede panda bear hurts (ledge), Monday, 19 April 2010 21:42 (sixteen years ago)

Thanks for that link, Sanpaku. I'd wondered before about the Bristol<->Belfast flight route seeming to have almost a 90 degree bend in, and how very occasionally they take another route which is no more direct - guess the big gaps in the allowed airspace explain that.

My coworker is not pleased, as he'd booked a flight on Saturday. He's hoping they'll let him fly by this weekend, or his girlfriend will have outstayed her visa.

And I'm not pleased, cz I had to work on my birthday (which I had been hoping to take off) to cover for his leave, but now he's moved his leave. Oh well.

falling while carrying an owl (a passing spacecadet), Monday, 19 April 2010 21:47 (sixteen years ago)

One more before normal service is resumed. From my patio.
http://farm5.static.flickr.com/4058/4537564106_cb7b924868.jpg

Ned Trifle II, Tuesday, 20 April 2010 08:40 (sixteen years ago)

19. From Oksanka
Hello, Andrey! Tell me, what eye color do you like? ))) Thanks for the answer)))
Arshavin: The color of the sky, blue sky.

salsa sharkshavin (salsa shark), Tuesday, 20 April 2010 08:41 (sixteen years ago)

http://farm5.static.flickr.com/4037/4537604288_d1428c7d18.jpg

http://farm3.static.flickr.com/2783/4536972925_15b3df20df.jpg

(i zoomed in for that last one, can you tell?)

koogs, Tuesday, 20 April 2010 09:10 (sixteen years ago)

Ha, I did one of those too! Mines a different blue though...
http://farm3.static.flickr.com/2761/4537561714_27cb524163.jpg

Ned Trifle II, Tuesday, 20 April 2010 09:18 (sixteen years ago)

that's more white with a 'this photo is currently unavailable' motif

koogs, Tuesday, 20 April 2010 09:34 (sixteen years ago)

ooops...try again
http://farm3.static.flickr.com/2688/4537626318_8c4ebf146c.jpg

Ned Trifle (Notinmyname), Tuesday, 20 April 2010 10:20 (sixteen years ago)

(looking at mine more closely, there's a semicircular graduation of colour centred on the bottom middle. i wonder whether this is a function of the sky or my camera)

koogs, Tuesday, 20 April 2010 10:55 (sixteen years ago)

Could it be your screen? Even looking at it "original" size I can't see anything bu beautiful pure blue.

Ned Trifle (Notinmyname), Tuesday, 20 April 2010 11:36 (sixteen years ago)

(no, i was using gimp and the magick wand with the threshold set to 1 and seeing what it selected. to my eyes it's just blue, to gimp's it's 1284 different blues)

koogs, Tuesday, 20 April 2010 12:25 (sixteen years ago)

one month passes...

http://www.flickr.com/photos/njsouthall/4632438649/sizes/l/

No, YOU'RE a disgusting savage (Scik Mouthy), Sunday, 23 May 2010 20:42 (sixteen years ago)

Hmph.

No, YOU'RE a disgusting savage (Scik Mouthy), Sunday, 23 May 2010 20:58 (sixteen years ago)

fail.

The Cursed Return of the Dastardly Thermo Thinwall, Sunday, 23 May 2010 21:24 (sixteen years ago)

this it?
http://farm4.static.flickr.com/3141/4632438649_01a2920728_b.jpg

StanM, Sunday, 23 May 2010 21:26 (sixteen years ago)

this it?

Yes!

No, YOU'RE a disgusting savage (Scik Mouthy), Sunday, 23 May 2010 21:56 (sixteen years ago)

a+

nakhchivan, Sunday, 23 May 2010 21:59 (sixteen years ago)

oops, I thought I had typed an "Is" as well, but it's gone.

A+ picture

StanM, Sunday, 23 May 2010 22:00 (sixteen years ago)

lol A+ xpost too

StanM, Sunday, 23 May 2010 22:00 (sixteen years ago)


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