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0EPII1
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These 5 healthy habits could help you live a decade longer, study suggests
https://edition.cnn.com/2018/04/30/health/life-expectancy-habits-study

Blue light like that from smartphones linked to some cancers, study finds
https://edition.cnn.com/2018/04/27/health/artificial-blue-light-prostate-breast-cancer-study

Brain tumors on the rise in England, raising cell phone concerns
https://edition.cnn.com/2018/05/02/health/brain-tumors-cell-phones-study

How much exercise your kid needs, based on the latest research
https://edition.cnn.com/2018/04/24/health/exercise-kids-teens-parenting-explainer

Striking aerial photos show human impact on the natural world
http://edition.cnn.com/style/article/tom-hegen-aerial-photography

5/3/2018 1:05:27 AM

0EPII1
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Who Was She? A DNA Test Only Opened New Mysteries
How Alice Collins Plebuch’s foray into “recreational genomics” upended a family tree


https://medium.com/thewashingtonpost/who-was-she-a-dna-test-only-opened-new-mysteries-777fd5aaa924

Quite long, but anybody interested in DNA, DNA testing, or family trees would enjoy it.

Basically, a woman got her DNA tested through 23andMe, and discovered she was 50% Ashkenazi Jewish, which was impossible as the family came from Irish immigrants.

She went on a long, very long, personal full-time investigation which entailed doing DNA tests of dozens of relatives and others. Her brother even made an iPad app to do the data analysis as their spreadsheet was getting too big (he was a retired NASA scientist, and even she used to work in IT, so they were the perfect people for this), and eventually, they found the truth:

Quote :
"This was a mistake that no one had ever detected, a mistake that could only have been uncovered with DNA technology. Someone in the hospital back in 1913 had messed up. Somehow, a Jewish child had gone home with an Irish family, and an Irish child had gone home with a Jewish family."


Basically, a ClassicMixup!

7/23/2018 2:26:52 AM

afripino
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badum, tsh

gg

7/23/2018 3:50:22 PM

0EPII1
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7/23/2018 6:05:56 PM

darkone
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I'm not sure it counts as interesting, but I have a new article in Science.

http://science.sciencemag.org/content/early/2018/07/18/science.aar5836




[Edited on July 24, 2018 at 3:55 PM. Reason : trying to work html]

7/24/2018 3:54:21 PM

0EPII1
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^ great work man!

**********************************************

Nature is awesome; never ceases to amaze!

How Spiders Use Silk to Fly

Quote :
"Spider flight is a mysterious phenomenon not fully understood by science. How is it that spiders can ride the wind for miles at a time?"


https://www.facebook.com/nytimesscience/videos/190583054985315

Mind, blown!

https://www.nytimes.com/2018/06/26/science/spiders-ballooning-wind.html

7/24/2018 9:52:45 PM

wwwebsurfer
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Quote :
"Observations suggest that the cloud erosion is caused by atmospheric gravity waves."


I have no idea what that is, but CONGRATS on publishing!

7/24/2018 11:10:39 PM

0EPII1
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^ duh, gravity messing up clouds, pulling them down to earth!

7/25/2018 12:26:58 AM

sumfoo1
soup du hier
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GG on being published dark one

7/25/2018 5:26:47 AM

darkone
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Gravity waves are pretty much ubiquitous in the atmosphere.
They're just waves where the restoring force is gravity. Check Wikipedia and don't mix them up with gravitational waves.

The big mystery here is how are the waves eroding the cloud. It's hard to definitively say with direct observations. To get rid of cloud you either have to make the environment warmer or dryer. So the waves pretty much have to cause the mixing in of dry air. It more a question about stability (buoyancy) and how much turbulent mixing the wave can cause. The other mystery is how such long, organized, long-lasting waves are being triggered. All we have there are wild guesses.

7/25/2018 10:03:59 AM

darkone
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^damnit. It was supposed to say"...without direct observations..."

7/25/2018 3:20:59 PM

moron
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I don’t understand these gravity waves

I understand different parts of the earth have different density and thus gravity, are you saying this variation is what causes the waves in the atmosphere? Like as the air moves around through different gravitational fields, waves are induced?

Or do you mean like waves created from the moon and stuff in space?

Congrats though, I saw that article on google news, very cool

7/26/2018 2:18:58 AM

0EPII1
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Check this Mars thread for some interesting news:

message_topic.aspx?topic=448693&page=1#16497657

(Go watch the skies tonight... read above)

8/1/2018 8:40:37 PM

darkone
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^^ Nothing so exotic. Anything that causes a rapid pressure change will cause a gravity wave. If the temperature has the right structure, it will act as a wave duct and allow the wave to propagate a long way without dispersing. Gravity is just the force that eventually dampens the waves.

Rapid heat release from rapid condensation inside a thunderstorm updraft can cause a gravity wave. At night, air over mountains can cool really fast. Since cold air is denser than warm air, it slides down the mountain. If it hit a layer of stable air that is going to be resistant to moving, it's like ringing a bell and waves are generated.

8/1/2018 11:57:15 PM

0EPII1
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The corona is the Sun's outer atmosphere which extends for millions of km, and reaches temperatures of around 1,000,000 C, way hotter than the Sun's surface, which is 'only' 6,000 C (lava is ~1,000 C).

NASA is sending a probe to the Sun next week, which will reach within 6 million km of the Sun, passing through regions of the corona reaching temperatures of about 600,000 C (1m F). And it will then orbit the sun and send back data until 2025. Prior to that, the closest a spacecraft had approached the Sun was ~40 million km.

Quote :
""Scientists have spent 60 years working on the project, which is expected to cost more than £1 billion, so it's a pretty big deal.""


60 years? That's some dedication!

https://www.bbc.co.uk/newsround/43328818
Parker Solar Probe: Nasa sends mission to 'touch the Sun'

https://en.wikipedia.org/wiki/Parker_Solar_Probe

The NASA scientist(s) on here explain this to me: According to the Wiki link:

Quote :
"The solar shield is 11.4 cm (4.5 in) thick and is made of reinforced carbon–carbon composite, which is designed to withstand temperatures outside the spacecraft of about 1,377 °C (2,511 °F)."


But that's... nothing. How can that be reconciled with this from the BBC link:

Quote :
"According to Nasa: "The spacecraft will travel through material with temperatures greater than a million degrees Fahrenheit while being bombarded with intense sun light.""


Huh?

8/4/2018 4:57:43 AM

0EPII1
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P.S. Make sure to watch the GIF of its trajectory:

https://en.wikipedia.org/wiki/Parker_Solar_Probe#/media/File:Animation_of_Parker_Solar_Probe_trajectory.gif

And this simply way too amazing!

Quote :
"As the probe passes around the Sun, it will achieve a velocity of up to 200 km/s (120 mi/s), which will temporarily make it the fastest manmade object, almost three times as fast as the current record holder, Helios-B."

8/4/2018 5:14:05 AM

TreeTwista10
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5/13/2019 2:07:34 AM

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