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Topic: Science News of Possible Interest

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Cincydawg

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Science News of Possible Interest
« on: January 28, 2019, 08:55:59 AM »
https://www.pbs.org/wgbh/nova/article/scientists-generate-quantum-entanglement-in-space-for-the-first-time/?utm_source=FBPAGE&utm_medium=social&utm_term=20190127&utm_content=2099225525&utm_campaign=NOVA+Next&linkId=62778606

In a new study in the journal Science , Jian-Wei Pan, a physicist at the University of Science and Technology of China in Shanghai, and his colleagues report that they were able to entangle photons aboard a satellite 300 miles above Earth and then beam those particles to three ground stations across China—each separated by more than 700 miles.




Cincydawg

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P1tchBlack

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Re: Science News of Possible Interest
« Reply #3 on: January 28, 2019, 09:25:29 AM »
https://www.pbs.org/wgbh/nova/article/scientists-generate-quantum-entanglement-in-space-for-the-first-time/?utm_source=FBPAGE&utm_medium=social&utm_term=20190127&utm_content=2099225525&utm_campaign=NOVA+Next&linkId=62778606

In a new study in the journal Science , Jian-Wei Pan, a physicist at the University of Science and Technology of China in Shanghai, and his colleagues report that they were able to entangle photons aboard a satellite 300 miles above Earth and then beam those particles to three ground stations across China—each separated by more than 700 miles.


Cincydawg

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Re: Science News of Possible Interest
« Reply #5 on: January 29, 2019, 03:17:30 PM »
https://gizmodo.com/is-the-elusive-planet-nine-actually-a-massive-ring-of-d-1831961723?linkId=62778908

The theorized distant planet might be a debris field about 100 AU out there.

Cincydawg

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Re: Science News of Possible Interest
« Reply #6 on: February 02, 2019, 03:59:32 PM »
https://www.caranddriver.com/features/a26089565/drag-racing-tires-explainer/?src=socialflowFBRAT&fbclid=IwAR0lJ4XumohgWl5jpcWo0WXfwHCrdWQSb_CYymIs7Tx3-kpDLiGYDQUBABg

More technology related, but plenty of science is in every tire of course.

We Break down the Physics of Dragster Tires
A single tire runs for roughly $917 and is expected to last only 1.5 miles.



I'm still amazed how much better regular car tires are today than they were in say 1975, even after radials became dominant.  I would have guesses the technology had nearly plateaued back then.

Cincydawg

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Re: Science News of Possible Interest
« Reply #7 on: February 02, 2019, 04:53:34 PM »
https://www.sciencenews.org/article/five-explosive-things-2018-eruption-taught-us-about-kilauea

You no doubt recall the large lava flows in Hawaii, but have missed that the volcano has settled down for the first time in decades and is no longer erupting.

If you ever get a chance to tour the park, it's stunning to see the place.

Cincydawg

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Re: Science News of Possible Interest
« Reply #8 on: February 05, 2019, 12:12:39 PM »
https://fivethirtyeight.com/features/you-dont-need-sports-drinks-to-stay-hydrated/

Not exactly science, but interesting, and accurate IMHO.  

Drink more water.

Drew4UTk

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Re: Science News of Possible Interest
« Reply #9 on: February 05, 2019, 12:27:09 PM »
quantum entanglement is a freaking mind blowing thing to me... and it begs the question about a lot of things across the fence in the firmly 'nutjob' lane of psychics and such... if, of course, the same thing happens at a macro level too.  physics can damn sure be strange, huh? 

Cincydawg

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Re: Science News of Possible Interest
« Reply #10 on: February 05, 2019, 12:30:49 PM »
The scale at which we experience life with our senses leads us to think what we experience is "normal".  Obviously, we have learned that things at the very small end and very fast end well past what we can experience are indeed strange, stranger than we can imagine really.  For me, it's an indication "we" don't know much at all and many mysteries remain, perhaps some that are beyond the human ability to figure out.  

No human could make up anything as bizarre as quantum mechanics.  We were forced into it kicking and screaming because of various observations that cannot be explained without it.  And the philosophical ramifications are also mind blowing.

Drew4UTk

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Re: Science News of Possible Interest
« Reply #11 on: February 05, 2019, 12:44:24 PM »
isn't that the entire premise of quantum physics?  I mean, at it's core?  

we can't be part of the experiment and observe it too- but we can on the quantum level... and apply those principles to our own 'reality?'.... this is where things get really weird, if true.  And not to make this an ideology discussion, but people want to say, as a primary defense refuting the existence of God "If I can't see it, it isn't there"- much like the proverbial ostrich sticking his head in the sand.  

clearly, we don't even understand what we can impartially observe (quantum)... and even then, what about that which reacts to observation on a sub-atomic level?  - which is another strange one- rationalizing this on a macro level and the old wisdom "a god is only as powerful as those who recognize it" tossed into the mix, does this mean that God derives His Power from 'Observation'?  .... a stretch, I know, and intended to be a stretch. 

grandaddy once lamented to me "boy, when you don't know anything you think you know it all; when you learn something, and if you learned it right, you ought to have discovered at least ten things to question- and ten more for each of them after investigating... a smart person thinks he is ignorant, and he'd be right".   this was right before telling me "always surprise someone with what you can do or what you know- don't ever have folks relying on you when you know you can't deliver"... and from the same source that told me "pussy is like a snow storm boy, you never know how much you're going to get or when it's coming- enjoy it when it lands" ... so, well, there's that. 

Cincydawg

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Re: Science News of Possible Interest
« Reply #12 on: February 05, 2019, 12:53:52 PM »
https://www.nature.com/articles/d41586-018-05892-6

Through Two Doors at Once: The Elegant Experiment That Captures the Enigma of Our Quantum Reality Anil Ananthaswamy Dutton (2018)
https://www.quantamagazine.org/frauchiger-renner-paradox-clarifies-where-our-views-of-reality-go-wrong-20181203/

https://www.quantamagazine.org/frauchiger-renner-paradox-clarifies-where-our-views-of-reality-go-wrong-20181203/

Inside the first lab, Alice’s friend makes a measurement on what is effectively a coin toss designed to come up heads one-third of the time and tails two-thirds of the time. If the toss comes up heads, Alice’s friend prepares a particle with spin pointing down, but if the toss comes up tails, she prepares the particle in a superposition of equal parts spin UP and spin DOWN.
Alice’s friend sends the particle to Bob’s friend, who measures the spin of the particle. Based on the result, Bob’s friend can now make an assertion about what Alice’s friend saw in her coin toss. If he finds the particle spin to be UP, for example, he knows the coin came up tails.
« Last Edit: February 05, 2019, 01:07:38 PM by Cincydawg »

Drew4UTk

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Re: Science News of Possible Interest
« Reply #13 on: February 05, 2019, 12:57:58 PM »
it's that of which i spoke. ^ .... i don't know how anyone can read through that and not experience bewilderment.  

Cincydawg

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Re: Science News of Possible Interest
« Reply #14 on: February 05, 2019, 01:00:18 PM »
"If you think you understand quantum mechanics, you don't understand quantum mechanics." is very very widely attributed to Feynman

Cincydawg

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Re: Science News of Possible Interest
« Reply #15 on: February 05, 2019, 01:09:01 PM »
https://www.sciencenews.org/article/astronomers-say-time-start-taking-search-aliens-seriously?fbclid=IwAR1ud7zbi5S2NNKPqYbVZ6otOLtnE0V25CSlAfXXIju7HsR7dUYFAXuqlLg&linkId=63205148&tgt=nr

Sort of topical for around here.

"Long an underfunded, fringe field of science, the search for extraterrestrial intelligence may be ready to go mainstream.
Astronomer Jason Wright is determined to see that happen. At a meeting in Seattle of the American Astronomical Society in January, Wright convened “a little ragtag group in a tiny room” to plot a course for putting the scientific field, known as SETI, on NASA’s agenda."


Cincydawg

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Re: Science News of Possible Interest
« Reply #16 on: February 05, 2019, 05:18:58 PM »
https://www.scientificamerican.com/article/scientists-prepare-for-mission-to-europa/?fbclid=IwAR2YrKKsWapLqbpPKQehN64zWecMwZkjHBOkQae6Erjebh5ux74GgWNbgyY&linkId=63206538

NASA’s Europa Clipper spacecraft could launch as early as 2023 to investigate one of the solar system’s most mysterious moons


Cincydawg

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gymvol

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Re: Science News of Possible Interest
« Reply #18 on: February 11, 2019, 09:31:47 AM »


Beam me up Scotty there's no intelligent life down here.  ;D


Cincydawg

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Cincydawg

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Re: Science News of Possible Interest
« Reply #21 on: February 11, 2019, 03:13:26 PM »
https://thehill.com/policy/technology/428800-march-launch-date-targeted-by-nasa-spacex-for-new-capsule

Possible return to manned space flight by the US this year, which would be the first time since 2011 that the US has put a man into space (that we know of, apart from possible military missions).

 

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