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Messages - pikaia

Pages: [1] 2 3 ... 6
1
The rest / Re: Astronomical news
« on: December 06, 2018, 09:54:45 AM »
A physicist talks about the hypothesis and its implications here:-

http://www.astronomyforum.net/astrophysics-forum/258999-new-theory-postulates-de-dm-same.html

2
The rest / Re: Article links: drop them here!
« on: November 26, 2018, 10:37:12 AM »
Erebus, by Michael Palin (of Monty Python fame) has been getting tremendous ratings on Goodreads.com - average 4.49 out of 5.

https://www.theguardian.com/books/2018/nov/24/erebus-michael-palin-review-john-franklin-arctic-explorer

https://www.goodreads.com/book/show/36992484-erebus

3
Arctic sea ice / Re: What's new in the Arctic ?
« on: November 14, 2018, 08:23:57 PM »

4
Arctic sea ice / Re: "Stupid" Questions :o
« on: November 07, 2018, 10:46:21 AM »
Why is the Amazon rainforest a carbon sink? During its lifetime a tree absorbs carbon as it grows, but then it eventually dies and the carbon is all released back into the atmosphere as it decomposes. Therefore a tree is carbon-neutral when looked at over its entire existence. So where does the carbon that is absorbed by the sink go to?

5
The forum / Re: Arctic Sea Ice Forum Humor
« on: October 31, 2018, 04:07:25 PM »


From jesusandmo.net.

6
Science / Re: Retrograde rotation
« on: October 18, 2018, 02:37:31 PM »
More evidence for the fine-tuning argument, which says that everything about the universe indicates that it is fine-tuned to be hostile to life!  ;)

7
The rest / Re: Article links: drop them here!
« on: October 18, 2018, 10:28:48 AM »

9
The rest / Re: Article links: drop them here!
« on: October 11, 2018, 11:29:23 AM »

10
Arctic sea ice / Re: Arctic Image of the Day
« on: October 01, 2018, 10:38:13 AM »

11
Arctic sea ice / Re: Arctic Image of the Day
« on: September 28, 2018, 11:35:52 PM »


From the 2018 Comedy Wildlife Photograph awards.

https://www.comedywildlifephoto.com/gallery/2018_finalists.php

12
Arctic sea ice / Re: Northern Sea Route thread
« on: September 16, 2018, 01:22:33 PM »
Venta Maersk has almost completed her journey, but needed help from ice-breakers.

http://www.highnorthnews.com/maersk-container-ship-transits-arctic-ocean-with-icebreaker-escort/

14
Arctic sea ice / Re: Northern Sea Route thread
« on: September 10, 2018, 10:26:34 PM »
"A convoy of Chinese cargo ships, with at least two carrying turbine blades and other equipment for the wind power industry, has traveled via the Northern Sea Route from Asia to Europe across the Arctic Ocean."

https://e360.yale.edu/digest/five-chinese-ships-led-by-russian-icebreakers-make-arctic-transit?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+YaleEnvironment360+%28Yale+Environment+360%29

15
The rest / Re: The Trump Presidency (was "Presidential Poll")
« on: September 07, 2018, 10:49:04 AM »
Several linguistic clues point to Pence being the author of the op-ed.

https://www.bbc.co.uk/news/world-us-canada-45435813

16
Antarctica / Re: Antarctic images
« on: September 06, 2018, 02:39:45 PM »
The first French expedition to Antarctica, 1903-5.  8)


17
The rest / Re: Article links: drop them here!
« on: September 06, 2018, 11:12:29 AM »
"Over a mere four days this summer, snow from the previous winter melted into a pond of slush on Canada’s Lowell Glacier. Mauri Pelto, a glaciologist at Nichols College, called the area of water-saturated snow a “snow swamp.”

“I haven’t seen a snow swamp of this size develop this quickly ever,” said Pelto, who has spent 38 years monitoring glaciers in the region."


https://earthobservatory.nasa.gov/images/92699/snow-swamp-on-lowell-glacier

18
Arctic sea ice / Re: The 2018 melting season
« on: September 03, 2018, 10:32:13 AM »
What is the technical difference between Area and Extent ?
Area is exactly that, the area of the ice. Extent is the area of water which has ice floating in it (with at least 15% concentration).

20
Arctic sea ice / Re: Northern Sea Route thread
« on: August 23, 2018, 11:44:16 AM »
A Danish vessel setting sail from Vladivostok this week is set to become the first container ship to tackle the Arctic sea route north of Russia.

https://www.bbc.co.uk/news/business-45271766

21
Starting shortly.

22
Arctic sea ice / Re: The 2018 melting season
« on: August 21, 2018, 11:26:46 AM »
"Arctic’s strongest sea ice breaks up for first time on record.
Usually frozen waters open up twice this year in phenomenon scientists described as scary."

https://www.theguardian.com/world/2018/aug/21/arctics-strongest-sea-ice-breaks-up-for-first-time-on-record

23
"NASA will host a media teleconference at 1 p.m. EDT Wednesday, Aug. 22, to discuss the upcoming launch of the Ice, Cloud and land Elevation Satellite (ICESat-2), which will fly NASA’s most advanced laser altimeter to measure Earth’s changing ice. The teleconference will stream live on NASA’s website.

ICESat-2 is scheduled to launch Sept. 15 on a mission to provide critical, precision measurements of Earth’s ice sheets, glaciers and sea ice, which will help scientists better understand how changes at the poles will affect people around the world."

https://www.nasa.gov/press-release/nasa-to-host-media-briefing-on-new-ice-monitoring-mission

26
Arctic sea ice / Re: Arctic Image of the Day
« on: July 23, 2018, 09:13:27 AM »


This phytoplankton bloom is in the Baltic.

27
Arctic sea ice / Re: Arctic Image of the Day
« on: July 14, 2018, 09:27:03 AM »

28
Arctic sea ice / Re: Arctic Image of the Day
« on: June 19, 2018, 10:58:45 PM »

29
Consequences / Re: Floods
« on: May 28, 2018, 08:12:09 AM »
Ellicott City.


30
The rest / Re: Good music
« on: April 28, 2018, 11:20:57 AM »
For me, you can't beat a nice big symphony. Listen to the magical opening of Bruckner's 4th.


31
The rest / Re: Article links: drop them here!
« on: April 21, 2018, 09:12:40 AM »

32
The forum / Re: Comments/posts can be liked now
« on: April 19, 2018, 12:16:32 AM »
There is nothing next to the 'like' and 'quote'.

Also, the number of likes refers to the poster, not to the post.

33
The forum / Re: Comments/posts can be liked now
« on: April 18, 2018, 01:06:14 PM »
When I click on Like, the number of Likes does not change.

34
The forum / Re: Comments/posts can be liked now
« on: April 18, 2018, 12:19:33 PM »
This is what I see - no Like button visible.

35
Arctic sea ice / Re: Arctic Image of the Day
« on: February 28, 2018, 10:52:46 AM »

37
Consequences / Re: Places becoming less livable
« on: December 22, 2017, 10:47:33 AM »

38
The rest / Re: Article links: drop them here!
« on: December 12, 2017, 03:35:40 PM »

39
Consequences / Re: Places becoming less livable
« on: December 03, 2017, 08:09:16 PM »
"A cricket Test match between India and Sri Lanka was repeatedly interrupted on Sunday with claims players were “continuously vomiting” due to hazardous pollution levels in the Indian capital."

https://www.theguardian.com/world/2017/dec/03/pollution-stops-play-at-delhi-test-match-as-bowlers-struggle-to-breathe

40
The rest / Re: Article links: drop them here!
« on: November 23, 2017, 02:11:29 PM »
"Venezuela used to have five glaciers. Today, only one remains. The last glacier in Venezuela, the Humboldt glacier, is about to disappear."

http://earthsky.org/earth/venezuela-losing-last-humbolt-glacier

41
The rest / Re: curious questions
« on: November 10, 2017, 03:16:49 PM »
Earth is closet to the Sun at about January 3rd, so sunlight is greatest then.

Gravity is zero at the centre of the Earth. Newton proved that the gravity inside a hollow sphere is exactly zero, and you can think of the Earth as a series of concentric hollow spheres.

Water on Earth:
http://sciencenordic.com/earth-has-lost-quarter-its-water

42
The rest / Re: Article links: drop them here!
« on: November 01, 2017, 11:47:54 AM »
"Feminine-named hurricanes (vs. masculine-named hurricanes) cause significantly more deaths, apparently because they lead to a lower perceived risk and consequently less preparedness,"

http://edition.cnn.com/2016/09/01/health/female-hurricanes-deadlier-than-male-hurricanes-trnd/index.html

43
Arctic sea ice / Re: IJIS
« on: September 28, 2017, 08:00:01 PM »
Thanks, Espen. I always go straight to this thread every morning.

44
The rest / Re: Article links: drop them here!
« on: September 17, 2017, 10:42:28 PM »

45
The rest / Re: The Trump Presidency (was "Presidential Poll")
« on: September 14, 2017, 12:25:20 PM »
"When it comes to US presidents, we expect to see a combination of prestige and dominance. Donald Trump’s Twitter tirades and demands for fealty show he prefers the latter – an ape-like strategy for success."

https://www.theguardian.com/us-news/2017/sep/14/donald-trump-alpha-male-chimpanzee-behavior

46
Consequences / Re: Hurricane season 2017
« on: September 07, 2017, 09:50:51 AM »

47
The rest / Re: Article links: drop them here!
« on: September 06, 2017, 09:43:39 PM »
Why scientists are preparing to freeze the research vessel Polarstern in sea ice near the North Pole.

https://www.theatlantic.com/magazine/archive/2017/10/a-year-on-ice/537912/

48
The rest / Re: Article links: drop them here!
« on: August 24, 2017, 06:29:03 PM »

49
The rest / Re: Article links: drop them here!
« on: August 16, 2017, 08:49:47 PM »
"Scientists announced today that a core drilled in Antarctica has yielded 2.7-million-year-old ice, an astonishing find 1.7 million years older than the previous record-holder. Bubbles in the ice contain greenhouse gases from Earth’s atmosphere at a time when the planet’s cycles of glacial advance and retreat were just beginning, potentially offering clues to what triggered the ice ages. "

http://www.sciencemag.org/news/2017/08/record-shattering-27-million-year-old-ice-core-reveals-start-ice-ages?utm_campaign=news_daily_2017-08-15&et_rid=41019276&et_cid=1493712

50
Sea level rise in the South of England is being amplified by isostatic rebound of the ground, caused by the loss of ice since the Ice Age. The Thames barrier is being closed increasingly often as a result.


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