djsurrey

Science Stories in the news Season 10

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NASA telescope reveals largest batch of Earth-size, habitable-zone planets around single star

Date:
February 22, 2017
Source:
NASA/Jet Propulsion Laboratory
Summary:
NASA's Spitzer Space Telescope has revealed the first known system of seven Earth-size planets around a single star. Three of these planets are firmly located in the habitable zone, the area around the parent star where a rocky planet is most likely to have liquid water.
see https://www.sciencedaily.com/releases/2017/02/170222130941.htm
and also http://www.cbc.ca/news/technology/7-earth-like-planets-discovered-1.3992156 
 
Edited by djsurrey
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1 hour ago, djsurrey said:

NASA telescope reveals largest batch of Earth-size, habitable-zone planets around single star

Date:
February 22, 2017
Source:
NASA/Jet Propulsion Laboratory
Summary:
NASA's Spitzer Space Telescope has revealed the first known system of seven Earth-size planets around a single star. Three of these planets are firmly located in the habitable zone, the area around the parent star where a rocky planet is most likely to have liquid water.
see https://www.sciencedaily.com/releases/2017/02/170222130941.htm
and also http://www.cbc.ca/news/technology/7-earth-like-planets-discovered-1.3992156 
 

This is actually pretty cool!  I hope the writers FF it this in the show somehow.  It could be a good plot for Raj.  It's right up his alley.

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I read that the British National Oceanography Centre's new UAV is to be deployed to study undersea currents in  the antarctic. http://www.bbc.co.uk/news/science-environment-39232973

I would like to see the guys discussing this in very serious "isn't science wonderful" style, with Sheldon maybe being patronising towards Penny. Then Penny asks something like "So does this robot submarine thingy have a name" and Sheldon has to tell her that it's called Boaty McBoatface. Just for Penny's facial reaction.

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On 14/03/2017 at 4:56 AM, JohnPhD said:

I read that the British National Oceanography Centre's new UAV is to be deployed to study undersea currents in  the antarctic. http://www.bbc.co.uk/news/science-environment-39232973

I would like to see the guys discussing this in very serious "isn't science wonderful" style, with Sheldon maybe being patronising towards Penny. Then Penny asks something like "So does this robot submarine thingy have a name" and Sheldon has to tell her that it's called Boaty McBoatface. Just for Penny's facial reaction.

Almost sounds like Penny named it.

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Sheldon will like this story (if he is given a chance to notice):

 

Quote

Scientists make the case to restore Pluto's planet status

New definition raises number of planets in solar system to about 110

Date:
March 17, 2017
Source:
Johns Hopkins University
Summary:
Kirby Runyon wants to make one thing clear: regardless of what one prestigious scientific organization says to the contrary, Pluto is a planet. So, he says, is Europa, commonly known as a moon of Jupiter, and so is the Earth's moon, and so are more than 100 other celestial bodies in our solar system that are denied this status under the prevailing definition of 'planet.'
 
from   https://www.sciencedaily.com/releases/2017/03/170317131205.htm

They make a case.

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Hasn't there been some news of Musk and a moon trip?  Since Howard met him it would be funny if Howard was asked by Musk to help in the planning because of him background.  Sheldon probably be so jealous it would be really funny.

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13 hours ago, SRAM said:

Hasn't there been some news of Musk and a moon trip?  Since Howard met him it would be funny if Howard was asked by Musk to help in the planning because of him background.  Sheldon probably be so jealous it would be really funny.

There is this:

http://www.bbc.com/news/science-environment-39115201

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Sheldon should want to get his teeth into the math.

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Explaining the accelerating expansion of the universe without dark energy

Date:
March 30, 2017
Source:
Royal Astronomical Society
Summary:
Enigmatic dark energy, thought to make up 68% of the universe, may not exist at all, according to a Hungarian-American team. The researchers believe that standard models of the universe fail to take account of its changing structure, but that once this is done the need for dark energy disappears.
 
https://www.sciencedaily.com/releases/2017/03/170330115254.htm

 

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Hmmmmmmm, I know this is a couple of years old, but I wonder if the guys would look into it, simply because of the game.  

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Too late for season 9 but here is another look at dark energy....

Quote

Solving one of nature's great puzzles: What drives the accelerating expansion of the universe?

Date:
May 15, 2017
Source:
University of British Columbia
Summary:
Physicists may have solved one of nature's great puzzles: What causes the accelerating expansion of our universe?
 
 
[snip]

Their calculations provide a completely different physical picture of the universe. In this new picture, the space we live in is fluctuating wildly. At each point, it oscillates between expansion and contraction. As it swings back and forth, the two almost cancel each other but a very small net effect drives the universe to expand slowly at an accelerating rate.

But if space and time are fluctuating, why can't we feel it?

"This happens at very tiny scales, billions and billions times smaller even than an electron," said Wang.

"It's similar to the waves we see on the ocean," said Unruh. "They are not affected by the intense dance of the individual atoms that make up the water on which those waves ride."

see https://www.sciencedaily.com/releases/2017/05/170515111133.htm 

 

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15 hours ago, djsurrey said:

Too late for season 9 but here is another look at dark energy....

 

Interestingly, that sounds a lot like Wheeler's quantum foam.  Where at quantum levels, the topology of space time is constantly changing.   From what I can find, this idea fits nicely with Loop Quantum Gravity and the spin networks in it.  

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Posted (edited)
7 hours ago, Die Zimtzicke said:

Looks like the story is from 2014. A lot of science stories in the regular media are quite inaccurate. So are many of  the stories on religion. The headlines are typically much more misleading than the stories. Actually the funny thing here is that the idea of the implication that the early universe was hotter and denser was initially rejected by many precisely because the one who originated the hypothesis was a catholic priest (and also a physicist).

Quote

And then in 1927, Georges Lemaitre, a Belgian physicist and Roman Catholic priest, independently derived the same results as Friedmann's equations and proposed that the inferred recession of the galaxies was due to the expansion of the universe. In 1931, he took this further, suggesting that the current expansion of the Universe meant that the father back in time one went, the smaller the Universe would be. At some point in the past, he argued, the entire mass of the universe would have been concentrated into a single point from which the very fabric of space and time originated.

These discoveries triggered a debate between physicists throughout the 1920s and 30s, with the majority advocating that the universe was in a steady state. In this model, new matter is continuously created as the universe expands, thus preserving the uniformity and density of matter over time. Among these scientists, the idea of a Big Bang seemed more theological than scientific, and accusations of bias were made against Lemaitre based on his religious background.



Read more at: https://phys.org/news/2015-12-big-theory.html#jCp

 

Edited by djsurrey

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On 5/28/2017 at 3:45 PM, djsurrey said:

Looks like the story is from 2014. A lot of science stories in the regular media are quite inaccurate. So are many of  the stories on religion. The headlines are typically much more misleading than the stories. Actually the funny thing here is that the idea of the implication that the early universe was hotter and denser was initially rejected by many precisely because the one who originated the hypothesis was a catholic priest (and also a physicist)

As I stated, I just thought it was funny when I read it. Everything in the media can be inaccurate, unfortunately.

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LIGO detects merging black holes for third time

Nearly 3 billion light years from Earth, the black holes are the farthest ever detected.

Jennifer Chu | MIT News Office 
June 1, 2017

The collision of a pair of colossal, stellar-mass black holes has made itself heard, nearly 3 billion light years away, through a cosmic microphone on Earth.

On Jan. 4, the Laser Interferometry Gravitational-wave Observatory (LIGO) picked up a barely perceptible signal that scientists quickly determined to be a gravitational wave — a ripple of energy passing through the curvature of spacetime. The event, published today in Physical Review Letters, marks the third direct detection of a gravitational wave.

from http://news.mit.edu/2017/ligo-detects-merging-black-holes-third-time-0601

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On 5/28/2017 at 3:45 PM, djsurrey said:

Looks like the story is from 2014. A lot of science stories in the regular media are quite inaccurate. So are many of  the stories on religion. The headlines are typically much more misleading than the stories. Actually the funny thing here is that the idea of the implication that the early universe was hotter and denser was initially rejected by many precisely because the one who originated the hypothesis was a catholic priest (and also a physicist).

For a follow up, a similar article in this month's issue of Columbia, the Knights of Columbus magazine, discusses how Catholics do not have to make a choice between science and religion, and it mentions the big bang and Lemaitre. It is called "Faith and Science:  Seeking One Truth, by Todd H. Ahern. I can't find an online version yet. I read it in the actual magazine when it was delivered to my son this week. He's a Knight.

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