Science, General Stuff

User avatar
RTH10260
Posts: 15884
Joined: Tue Mar 02, 2010 8:52 am
Location: Near the Swiss Alps

Re: Science, General Stuff

#1201

Post by RTH10260 » Tue Apr 24, 2018 5:53 pm

Tiredretiredlawyer wrote:
Tue Apr 24, 2018 3:26 pm
https://www.sciencefriday.com/articles/ ... -of-seeds/

Great pics and descriptions.
SCI CANDY GALLERY
A Yearbook Of Seeds
From the Uncarina seed’s fashionable coat to the flowing orange locks of the Bird of Paradise seed, we present this year’s seed superlatives.
Politically correctness... ;)

Best Hair: Bird Of Paradise (Stelitzia reginae)

Native to South Africa ==> illegal immgrant ;)




User avatar
Tiredretiredlawyer
Posts: 6102
Joined: Tue May 10, 2016 2:56 pm
Location: Animal Planet
Occupation: Permanent probationary slave to 2 dogs, 1 cat, and 1 horse

Re: Science, General Stuff

#1202

Post by Tiredretiredlawyer » Tue Apr 24, 2018 6:02 pm

:rotflmao:


"The people must know before they can act, and there is no educator to compare with the press." - Ida B. Wells-Barnett, journalist, newspaper editor, suffragist, feminist and founder with others of NAACP.

User avatar
Volkonski
Posts: 15939
Joined: Sat Mar 02, 2013 4:44 pm
Location: Texas Gulf Coast and North Fork of Long Island
Occupation: Retired Mechanical Engineer

Re: Science, General Stuff

#1203

Post by Volkonski » Wed Apr 25, 2018 10:43 am

A moment frozen in time: evidence of a late fifth-century massacre at Sandby borg

https://www.cambridge.org/core/journals ... ore-reader
Abstract

The European Migration Period (c. AD 400–550) was characterised by political, social and economic instability. Recent excavations at Sandby borg ringfort on the island of Öland in Sweden have revealed indisputable evidence of a massacre which occurred at that time. Osteological, contextual and artefactual evidence strongly suggest that the fort was abandoned immediately following the attack and was left undisturbed throughout antiquity. Sandby borg offers a unique snapshot of domestic life and abrupt death in the Scandinavian Migration Period, and provides evidence highly relevant to studies of ancient conflict, and on social and military aspects of Iron Age and Migration Period societies.
Wow!

The people were brutally killed but the killers didn't bother top steal their valuables. :? The site remained untouched for 1500 years until the recent excavations.

So far only a small part of the site has been excavated, just 3 of 53 houses. That took 3 years. We will be getting new revelations about this for along time.

News story about this here-

https://www.theguardian.com/science/201 ... 1524662005


Image“If everyone fought for their own convictions there would be no war.”
― Leo Tolstoy, War and Peace

User avatar
Whatever4
Posts: 11146
Joined: Tue Sep 08, 2009 6:36 am
Location: Here
Occupation: Visiting doctors.

Re: Science, General Stuff

#1204

Post by Whatever4 » Wed Apr 25, 2018 5:17 pm

Volkonski wrote:
Wed Apr 25, 2018 10:43 am
A moment frozen in time: evidence of a late fifth-century massacre at Sandby borg

https://www.cambridge.org/core/journals ... ore-reader
Abstract

The European Migration Period (c. AD 400–550) was characterised by political, social and economic instability. Recent excavations at Sandby borg ringfort on the island of Öland in Sweden have revealed indisputable evidence of a massacre which occurred at that time. Osteological, contextual and artefactual evidence strongly suggest that the fort was abandoned immediately following the attack and was left undisturbed throughout antiquity. Sandby borg offers a unique snapshot of domestic life and abrupt death in the Scandinavian Migration Period, and provides evidence highly relevant to studies of ancient conflict, and on social and military aspects of Iron Age and Migration Period societies.
Wow!

The people were brutally killed but the killers didn't bother top steal their valuables. :? The site remained untouched for 1500 years until the recent excavations.

So far only a small part of the site has been excavated, just 3 of 53 houses. That took 3 years. We will be getting new revelations about this for along time.

News story about this here-

https://www.theguardian.com/science/201 ... 1524662005
That is wicked cool. Thanks! :thumbs:


"[Moderate] doesn't mean you don't have views. It just means your views aren't predictable ideologically one way or the other, and you're trying to follow the facts where they lead and reach your own conclusions."
-- Sen. King (R-ME)

User avatar
RTH10260
Posts: 15884
Joined: Tue Mar 02, 2010 8:52 am
Location: Near the Swiss Alps

Re: Science, General Stuff

#1205

Post by RTH10260 » Sun Apr 29, 2018 8:06 pm

We have seen the SpaceX and the Tesla floating in space.

Here comes now Jeff Bezos and his Blue Origin competition in a short test run of the launcher and the reentry capsule




User avatar
RTH10260
Posts: 15884
Joined: Tue Mar 02, 2010 8:52 am
Location: Near the Swiss Alps

Re: Science, General Stuff

#1206

Post by RTH10260 » Tue May 01, 2018 12:39 pm

NASA just proved it is serious about returning to the moon

BY MARK WHITTINGTON, OPINION CONTRIBUTOR — 05/01/18 12:30 PM EDT

Recently NASA canceled work on a proposed lunar rover called the Resource Prospector, less a mission than an idea for a mission. The RP would have sent a rover to one of the lunar poles to prospect for resources, including water ice, with a drill and an onboard laboratory. Work on the concept had been ongoing for four years, even though it was never an approved mission on NASA’s manifest.

The decision to cancel the RP elicited a flurry of media reports that, in effect, NASA was canceling a lunar mission just as President Trump had ordered the space agency to return to the moon. The truth is a little more complicated.

:snippity:

Bridenstine did not take long to respond on his Twitter feed.

“We’re committed to lunar exploration @NASA. Resource Prospector instruments will go forward in an expanded lunar surface campaign. More landers. More science. More exploration. More prospectors. More commercial partners. Ad astra!”

NASA then expanded on the tweet.


http://thehill.com/opinion/technology/3 ... o-the-moon



Mr. Gneiss
Posts: 1525
Joined: Sat Jan 01, 2011 12:37 am

Re: Science, General Stuff

#1207

Post by Mr. Gneiss » Wed May 02, 2018 5:39 pm

Stephen Hawking's last paper co-authored with Thomas Hertog was just published in the Journal of High Energy Physics, April 2018, 2018:147.

It is open sourced: A smooth exit from eternal inflation?

From CNN Stephen Hawking's final research paper has been published, and it's mind-bending
True to Hawking's oeuvre, the paper tackles the same questions as any other bubbly beach read: Do we live in a multiverse? Did the Big Bang create infinite universes? If there are infinite universes, does that mean that there are no laws that can govern their organization or creation? If there aren't infinite universes, and simply many, what laws govern how many and which ones?

:snippity:

The basic gist of it is this: Lets assume The Big Bang created the universe, and continues to expand infinitely (called eternal inflation). This idea, championed by Hawking and Hertog, also implies that there are infinite universes. The problem is, if there are infinite universes there is no way to position our own selves in our universe and no governing laws of physics across all universes that can be used to know them.

In this new paper, Hawking and Herzog reexamined the theoretical characteristics of the Big Bang using new mathematical applications. They conclude that, in their new model, all universes must share some law of physics. This gives future scientists and physicists a more structured set of information to identify other universes.
JHEP04(2018)147.pdf
You do not have the required permissions to view the files attached to this post.



User avatar
Volkonski
Posts: 15939
Joined: Sat Mar 02, 2013 4:44 pm
Location: Texas Gulf Coast and North Fork of Long Island
Occupation: Retired Mechanical Engineer

Re: Science, General Stuff

#1208

Post by Volkonski » Wed May 02, 2018 8:44 pm

How Far Could You Sail in a Straight Line Without Hitting Land

https://www.livescience.com/62465-longe ... earth.html
The path that the algorithm returned closely mirrored Anderson's. Again, when rendered to a flattened map, the track appears to follow a curve. But when seen on a globe, the path is a straight line, according to figures presented in the study.

It started in Pakistan, "threaded the needle" between mainland Africa and Madagascar, continued between Antarctica and Tierra del Fuego in South America, and terminated in Kamchatka Krai in Russia, covering 19,940 miles (32,090 km), the scientists wrote.
:nope: :fingerwag:

Because the earth is very nearly a sphere it is impossible to sail any distance at all in a straight line. That 19940 mile path is a section of a circle. It is not straight.


Image“If everyone fought for their own convictions there would be no war.”
― Leo Tolstoy, War and Peace

User avatar
Tiredretiredlawyer
Posts: 6102
Joined: Tue May 10, 2016 2:56 pm
Location: Animal Planet
Occupation: Permanent probationary slave to 2 dogs, 1 cat, and 1 horse

Re: Science, General Stuff

#1209

Post by Tiredretiredlawyer » Sat May 12, 2018 9:21 am

https://www.independent.co.uk/news/worl ... 47896.html
Man with the golden arm has saved 2.4 million babies by donating blood every week for 60 years
Unique disease-fighting antibodies have helped create special injection to help pregnant women


Because his blood has unique disease-fighting antibodies, it is used to create an injection which combats rhesus disease – a condition where the blood of pregnant women attacks their unborn babies.

Mr Harrison, of New South Wales, discovered his blood had unique properties when he had a lung removed, aged just 14.

Doctors found it contained an antibody which could be used to create the life-saving ‘Anti-D’ injections. Every batch of the life-saving Anti-D that has ever been made in Australia has come from James' blood. And more than 17 per cent of women in Australia are at risk so James has helped save a lot of lives."

"In Australia, up until about 1967, there were literally thousands of babies dying each year, doctors didn't know why, and it was awful,” Jemma Falkenmire, of the Australian Red Cross Blood Service, told CNN in 2015. “Women were having numerous miscarriages and babies were being born with brain damage. Australia was one of the first countries to discover a blood donor with this antibody, so it was quite revolutionary at the time.


"The people must know before they can act, and there is no educator to compare with the press." - Ida B. Wells-Barnett, journalist, newspaper editor, suffragist, feminist and founder with others of NAACP.

User avatar
Volkonski
Posts: 15939
Joined: Sat Mar 02, 2013 4:44 pm
Location: Texas Gulf Coast and North Fork of Long Island
Occupation: Retired Mechanical Engineer

Re: Science, General Stuff

#1210

Post by Volkonski » Thu May 17, 2018 11:48 am

We are in the midst of a baby bust. No wonder Toys R Us went bankrupt.

U.S. Fertility Rate Fell to a Record Low, for a Second Straight Year

https://www.nytimes.com/2018/05/17/us/f ... tates.html
The fertility rate fell to 60.2 births per 1,000 women of childbearing age, down 3 percent from 2016, according to the National Center for Health Statistics. It was the largest single-year decline since 2010, when families were still feeling the effects of a weak economy.

Fertility rates are essential measures of a society’s demographic balance. If they are too high, that can strain resources like housing and education. If they are too low, a country can face challenges replacing its work force and supporting its older adults, like in Russia and Japan. In the United States, declines in rates have not led to drops in the population, in part because they have been largely offset by immigration.

The country has been living through one of the longest declines in fertility in decades and demographers are trying to figure out what is driving it. Rates tend to drop during difficult economic times as people put off having babies, and then rise once the economy rebounds. But the rate has not recovered since the Great Recession. A brief uptick in 2014 did not last. The number of births has also declined, and last year was its lowest level since 1987. The fertility rate is the number of births per 1,000 women ages 15 to 44.

:snippity:

He said it seemed to be inconsistent with the growing number of women of childbearing age: In 2017, women had nearly 500,000 fewer babies than in 2007, despite the fact that there were an estimated 7 percent more women in their prime childbearing years of 20 to 39.
The current US birth rate is well below the replacement fertility rate. Without immigration the US population would be declining.


Image“If everyone fought for their own convictions there would be no war.”
― Leo Tolstoy, War and Peace

User avatar
AndyinPA
Posts: 1560
Joined: Wed Apr 05, 2017 1:00 pm
Location: Pittsburgh PA

Re: Science, General Stuff

#1211

Post by AndyinPA » Thu May 17, 2018 12:49 pm

We need population to be declining everywhere.



Post Reply

Return to “Science & Technology”