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Dec 15, 2018, 10:28 AM
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 31 
 on: Dec 14, 2018, 04:52 AM 
Started by Rad - Last post by Darja
Time travel is possible – but only if you have an object with infinite mass

The Conversation
14 Dec 2018 at 07:14 ET                   

The concept of time travel has always captured the imagination of physicists and laypersons alike. But is it really possible? Of course it is. We’re doing it right now, aren’t we? We are all traveling into the future one second at a time.

But that was not what you were thinking. Can we travel much further into the future? Absolutely. If we could travel close to the speed of light, or in the proximity of a black hole, time would slow down enabling us to travel arbitrarily far into the future. The really interesting question is whether we can travel back into the past.

I am a physics professor at the University of Massachusetts, Dartmouth, and first heard about the notion of time travel when I was 7, from a 1980 episode of Carl Sagan’s classic TV series, “Cosmos.” I decided right then that someday, I was going to pursue a deep study of the theory that underlies such creative and remarkable ideas: Einstein’s relativity. Twenty years later, I emerged with a Ph.D. in the field and have been an active researcher in the theory ever since.

Now, one of my doctoral students has just published a paper in the journal Classical and Quantum Gravity that describes how to build a time machine using a very simple construction.

Closed time-like curves

Einstein’s general theory of relativity allows for the possibility of warping time to such a high degree that it actually folds upon itself, resulting in a time loop. Imagine you’re traveling along this loop; that means that at some point, you’d end up at a moment in the past and begin experiencing the same moments since, all over again – a bit like deja vu, except you wouldn’t realize it. Such constructs are often referred to as “closed time-like curves” or CTCs in the research literature, and popularly referred to as “time machines.” Time machines are a byproduct of effective faster-than-light travel schemes and understanding them can improve our understanding of how the universe works.

Over the past few decades well-known physicists like Kip Thorne and Stephen Hawking produced seminal work on models related to time machines.

The general conclusion that has emerged from previous research, including Thorne’s and Hawking’s, is that nature forbids time loops. This is perhaps best explained in Hawking’s “Chronology Protection Conjecture,” which essentially says that nature doesn’t allow for changes to its past history, thus sparing us from the paradoxes that can emerge if time travel were possible.

Perhaps the most well-known amongst these paradoxes that emerge due to time travel into the past is the so-called “grandfather paradox” in which a traveler goes back into the past and murders his own grandfather. This alters the course of history in a way that a contradiction emerges: The traveler was never born and therefore cannot exist. There have been many movie and novel plots based on the paradoxes that result from time travel – perhaps some of the most popular ones being the “Back to the Future” movies and “Groundhog Day.”

Watch: https://www.youtube.com/watch?v=ub6PGaygVwA

Exotic matter

Depending on the details, different physical phenomena may intervene to prevent closed time-like curves from developing in physical systems. The most common is the requirement for a particular type of “exotic” matter that must be present in order for a time loop to exist. Loosely speaking, exotic matter is matter that has negative mass. The problem is negative mass is not known to exist in nature.

Caroline Mallary, a doctoral student at the University of Massachusetts Dartmouth has published a new model for a time machine in the journal Classical & Quantum Gravity. This new model does not require any negative mass exotic material and offers a very simple design.

Mallary’s model consists of two super long cars – built of material that is not exotic, and have positive mass – parked in parallel. One car moves forward rapidly, leaving the other parked. Mallary was able to show that in such a setup, a time loop can be found in the space between the cars.
An animation shows how Mallary’s time loop works. As the spacecraft enters the time loop, its future self appears as well, and one can trace back the positions of both at every moment afterwards. This animation is from the perspective of an external observer, who is watching the spacecraft enter and emerge from the time loop.

So can you build this in your backyard?

If you suspect there is a catch, you are correct. Mallary’s model requires that the center of each car has infinite density. That means they contain objects – called singularities – with an infinite density, temperature and pressure. Moreover, unlike singularities that are present in the interior of black holes, which makes them totally inaccessible from the outside, the singularities in Mallary’s model are completely bare and observable, and therefore have true physical effects.

Physicists don’t expect such peculiar objects to exist in nature either. So, unfortunately a time machine is not going to be available anytime soon. However, this work shows that physicists may have to refine their ideas about why closed time-like curves are forbidden.The Conversation

Gaurav Khanna, Professor of Physics, University of Massachusetts Dartmouth

 32 
 on: Dec 13, 2018, 01:59 PM 
Started by Rad - Last post by Rad
End This Shameful War

Meet Abrar, 12, a victim of our Yemen policy.

By Nicholas Kristof
Opinion Columnist
NY Times
Dec. 13, 2018

ADEN, Yemen

I’m giving up most of my column space today to introduce you to Abrar Ibrahim, a 12-year-old girl in Yemen who weighs just 28 pounds. Nothing I write can be as searing or persuasive or true as Abrar is in this photo.

Abrar is starving in part as a consequence of the American-backed Saudi Arabian war in Yemen. Members of the United States Congress are considering measures that would end our country’s support for the war. They should look at Abrar. Her emaciation reflects the reality that United States policies are contributing to the deaths of children in Yemen by the tens of thousands.

It is wrenching for me as an American to travel across this country and see the toll of my country’s actions. The most common war casualty in Yemen is not a soldier with a bullet but a child who is starving.

True, there are complex roots to the suffering in Yemen, but the United States is a partner in a war that has collapsed Yemen’s economy and kept fishermen, like Abrar’s father in the port city of Hudaydah, from going to sea to haul in their catches. So Abrar is now fighting for her life in a hospital in Aden.

READ MORE FROM NICHOLAS KRISTOF IN YEMEN: https://www.nytimes.com/2018/12/07/opinion/sunday/yemen-famine-war-saudi-arabia.html?action=click&module=RelatedLinks&pgtype=Article

American and Saudi officials think of the Yemen war as a way to check Iran. It has failed in that and has accomplished little more than leaving 12 million Yemenis on the brink of famine. Already, 85,000 children may have died. We are complicit.

Saudi and American officials say that the enemy, the Houthi rebels who govern much of the country, are oppressive and are backed by Iran. That’s true. But how do we explain to Abrar that because we want to make a point, she must starve?

The parents of starving children allowed photos to be taken because they hope that people outside their country will act differently if they understand the human cost of three years of war.

Doctors don’t know if Abrar will survive. She deserves our hopes and prayers, and an end to this shameful war. Look at Abrar, and any additional commentary seems superfluous.

 33 
 on: Dec 13, 2018, 12:35 PM 
Started by Linda - Last post by Bhaskara
Hi Everyone,

I came here to write my assignment but I just cant I am unable to continue on with things the way they are because I will not come off as authentic and as I truly am with my heart in this condition....

I never came to this message board to hurt anyone or create a divide and yet one  moment in time has changed the course of my life and others forever. How can I move forward  impeccably honest, how can I make things right there is no peace or way for me to make it right with anyone or heal this situation and from what  I understand from with in my own heart is that no one can tell you your truth, that truth must come to me from with in myself to know... This last year  has been devastatingly painful a pain  I fear will never leave me and the truth as to why this has been so devastating  is because nothing with in  me hurts more than when I know I have caused pain and heartache for another human being.
I have not handled this situation well with dignity or grace and my heart has not come out to others as it is or how I want it to because of being self protective and scared. I am scared that I don't know how to make it right, how do I stop what is happing... In my heart there is no divide this is just an illusion because of broken hearts...

All I can say is I love You and I am truly Sorry....

Heather  

 34 
 on: Dec 13, 2018, 11:55 AM 
Started by Rad - Last post by Rad
Paul Ryan blocks House from taking up Yemen bill

by Susan Ferrechio
Washington Examiner
12/13/2018

House Speaker Paul Ryan on Wednesday pushed language through the House that will prevent lawmakers from taking up any resolution to end U.S. support for the war in Yemen this year.

The language was passed just as the Senate was set to start debate on a resolution that aims to end U.S. involvement in Yemen, a response to anger over Saudi Arabia's involvement in the death of dissident Jamal Khashoggi.

The provision was tucked into the rule for the 2018 farm bill, which governs how the farm bill will be debated and voted on. Rules are approved by the House Rules Committee, also known as the Speaker's Committee because it's stacked in favor of the majority and usually takes direction from the House speaker.

Rules for legislation normally pass easily on the strength of support from the majority party, but on Wednesday, 18 Republicans balked because of the inclusion of the Yemen language. It passed narrowly in a 206-203 vote, and 17 Republican lawmakers didn't vote at all, both signs that the language nearly put the farm bill at risk of not advancing.

The rule said a section of the War Powers Resolution won't apply for the rest of the current Congress to any resolution related to Yemen. That effectively prevents the House from taking up the Senate resolution, should it pass.

Republicans and Democrats in the House who favor a vote on the measure blasted Ryan's move, which they said was underhanded.

Rep. Thomas Massie, R-Ky., called the move “despicable” and said on Twitter that House Speaker Paul Ryan, R-Wis., “is shirking responsibility for debating our involvement in the Yemen war by hiding the war resolution in a procedural vote on the farm bill.”

    Despicable. @SpeakerRyan is shirking responsibility for debating our involvement in the Yemen war by hiding the war resolution in a procedural vote on the farm bill. SAD! https://t.co/W2sw7K1nMY
    — Thomas Massie (@RepThomasMassie) December 12, 2018


Rep. Ro Khanna, D-Calif., accused Republican leaders of trying to blocking debate on the measure because it would ultimately pass.

“The only reason the leadership is doing this is because they know there are dozens of Republicans who will stand with Democrats to stop the killing in Yemen,” Khanna said during debate on the rule.

But a spokesperson for Ryan said the U.S. is already doing nothing to help Saudi Arabia in Yemen and that blocking a resolution isn't the critical vote some are making it out to be.

"The U.S. is no longer providing the very support that this bill seeks to cut off thus making it unnecessary," said Ryan spokeswoman AshLee Strong. "It is based on a factually faulty premise."

Ryan’s push to block the Yemen vote aligns with the GOP leadership in the Senate, which is opposed to the Yemen resolution. Democrats and a handful of Republicans are poised to pass the Yemen measure in the Senate on Wednesday, but it is essentially going nowhere this year because House Republican leaders don’t support it, nor does President Trump.

It would end U.S. support of Saudi-led airstrikes in Yemen, which is suffering from a humanitarian crisis thanks to the conflict. More than 10,000 civilians have been killed and 40,000 injured.

Earlier Wednesday, Majority Leader Mitch McConnell, R-Ky., called on lawmakers to reject the Yemen resolution by arguing it too goes too far in using the war powers act to check Trump. The federal law gives Congress a role in checking executive branch power when it comes to waging war.

McConnell said lawmakers should instead back a resolution addressing Yemen as well as the Saudi government’s murder of Khashoggi that will come up later for a vote.

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

Yemen conflict explained in 400 words   

BBC
12/13/2018
   
For a little more than three years, Yemen has been locked in a seemingly intractable civil war that has killed nearly 10,000 people and pushed millions to the brink of starvation.

The conflict has its roots in the Arab Spring of 2011, when an uprising forced the country's long-time authoritarian president, Ali Abdullah Saleh, to hand over power to his deputy, Abdrabbuh Mansour Hadi.

The political transition was supposed to bring stability to Yemen, one of the Middle East's poorest nations, but President Hadi struggled to deal with various problems including militant attacks, corruption, food insecurity, and continuing loyalty of many military officers to Saleh.

Fighting began in 2014 when the Houthi Shia Muslim rebel movement took advantage of the new president's weakness and seized control of northern Saada province and neighbouring areas. The Houthis went on to take the capital Sanaa, forcing Mr Hadi into exile abroad.

The conflict escalated dramatically in March 2015, when Saudi Arabia and eight other mostly Sunni Arab states - backed by the US, UK, and France - began air strikes against the Houthis, with the declared aim of restoring Mr Hadi's government.   

The Saudi-led coalition feared that continued success of the Houthis would give their rival regional power and Shia-majority state, Iran, a foothold in Yemen, Saudi Arabia's southern neighbour. Saudi Arabia says Iran is backing the Houthis with weapons and logistical support - a charge Iran denies.

Both sides have since been beset by infighting. The Houthis broke with Saleh and he was killed by Houthi fighters in December 2017. On the anti-Houthi side, militias include separatists seeking independence for south Yemen and factions who oppose the idea.

The stalemate has produced an unrelenting humanitarian crisis, with at least 8.4 million people at risk of starvation and 22.2 million people - 75% of the population - in need of humanitarian assistance, according to the UN. Severe acute malnutrition is threatening the lives of almost 400,000 children under the age of five.

Yemen's health system has all but collapsed, while the world's largest cholera outbreak has killed thousands.

In June 2018, Saudi-backed government forces began an assault on the key rebel-held port of Hudaydah, the entry point for the vast majority of aid going into Yemen and a lifeline for the starving. Aid agencies warned the offensive could make Yemen's humanitarian catastrophe much worse.

 35 
 on: Dec 13, 2018, 11:21 AM 
Started by Rad - Last post by Stacie
Yes, when I referred to the product of documention, the ability to objectify the content is exactly what I had in mind. Thank you!


 36 
 on: Dec 13, 2018, 10:52 AM 
Started by Rad - Last post by Rad
Hi Stacie,

No, to document means to 'objectify'. Objectification in EA correlates to Aquarius, Uranus, and the 11th house.

God Bless, Rad

 37 
 on: Dec 13, 2018, 09:36 AM 
Started by Rad - Last post by Stacie
Is the answer that the process of documentation is Capricorn but the product of it is Aquarius?

 38 
 on: Dec 13, 2018, 09:21 AM 
Started by Rad - Last post by Stacie
Thanks for that. I actually didn’t realize ‘documentation’ is an Aquarian phenomena.  I would have thought it to be Capricorn: marierial collected and organized in a systematic way over time to create a concrete record.  Would you mind briefly clarifying that correlation?

God Bless
Stacie  

 39 
 on: Dec 13, 2018, 08:50 AM 
Started by Rad - Last post by Rad
Hi Stacie,

Yep. It's interesting too because Cohen's N.Node of Lucifer is 2 Aquarius relative his Lunar N.Node which is 25 Aquarius. This is then conjunct Trump's N.Node of Lucifer which is 5 Pisces which also conjuncts Cohen's natal Pallas at 1 Pisces. If we remember that Aquarius correlates to 'documentation' as an archetype when can then see that Cohen has needed to documents in so many ways his interactions with Trump: the tapes being just one example Relative to Cohen's N.Node in Cancer which lands in Trumps 11th house, and, again, conjunct his natal Lucifer/Saturn/Venus we can then see how this documentation will progressively lead, because of everything that has been documented, to an ongoing cooperation with Mueller in which the whole truth, Pisces, will be known. Cohen's N.Node of Lucifer lands in Trump's 6th house: the massive crisis for Trump because of the documentation.

And it is that whole truth from Cohen, combined with everything else that Mueller is doing with other witness's/ cooperator's/ evidence, that will progressively hold Trump accountable to the law: Saturn. This will of course create the necessary trauma, Trump's 11th House, the archetype of Aquarius and Uranus as well, that will bring Trump down. Trump's natal Uranus in Gemini is in his 10th House conjunct his Lunar N.Node and the Sun.

The Pluto transit will be in  direct opposition to his natal Saturn, again which is conjunct Venus and Lucifer, in the early Spring. Watch for so much of what is underway now to start coming to a head around that time. Within this the ongoing transiting Lunar axis, now in Trump's 11th house and coming up on his natal Lucifer/Saturn/ and Venus will serve to intensify the trauma for Trump, and his family, Cancer, as well as create a trauma for America in all kinds of ways. This same transiting Lunar Nodes transit is marching over the next couple of years, towards Trump's 10th House, and his Sun/Uranus/ and natal Lunar North Node.

God Bless, Rad

 40 
 on: Dec 13, 2018, 08:30 AM 
Started by Rad - Last post by Stacie
That south node in Leo conjunct Trump’s mars just got transited by asteroid Lamb, too. Lamb is currently at 27 Leo

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