Objects, including spacecraft, could pierce through the universe using several black holes as a ‘shortcut’, a new study suggests.
The new theory posited by French physicist Pascal Koiran marks a break from earlier research in the field of black hole studies. Previously, it was thought that a so-called ‘wormhole’ composed of two black holes would be prone to instantly collapse, thus making it impossible for an object to successfully travel all the way from one side and out the other. However, by employing different metrics, the French scientist’s new model has arrived at a very different conclusion: “We show that the particle reaches the wormhole throat for a finite value t′1 of the time marker t′.” In essence, that means an object, for instance, a spacecraft, could pass through this wormhole portal intact and reach some far-away region of the universe, taking far less time than would be needed if traveling conventionally.
The study in its entirety will see the light of day in the upcoming issue of the Journal of Modern Physics D, though an abstract has been available since early October.
Yet, there are too many ifs as to whether this purely theoretical model has any bearing on the way the universe actually works. For starters, to create such a time-and-space tunnel you would need a regular black hole and a so-called white hole, which is essentially a black hole in reverse. While black holes never let anything out, their ‘twins’ never let anything in. So, according to Albert Einstein’s theory of general relativity and Nathan Rosen’s additions to it, if you were to connect the two, they would make up a bridge across time and space. However, if the laws postulated by another branch of physics, thermodynamics, are anything to go by, such a construct would be highly unstable. Perhaps more importantly, the very existence of white holes has yet to be proven beyond a reasonable doubt. At present, they remain a pure theorization, thus putting any talk of space-and-time portals on rather shaky ground.
When the PRC decides to move on Taiwan, it is unlikely to move in a manner that makes a US decision on intervention clear cut. Should China decide, initially at least, against a full-scale invasion of that island nation, it could instead opt to try to “win without fighting.” Beijing might do so by using its large, state-controlled fishing fleet to cut smaller Taipei-controlled islands off from Taiwan itself much as the PRC is now massing fishing boats to expand Chinese-controlled seas to press claims on the Japanese Senkakus and Whitsun Reef in Philippine waters. Chinese state-owned fisheries companies – part of the so-called ‘Maritime Militia’ – serve as fronts for PLA intelligence. Using their fleets to operate in a manner somewhere between peace and conflict in the gray zone of contested control around Taiwan would allow Beijing to test whether the US and its allies are willing to help defend the island’s independence without being seen to initiate open conflict.
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The number of musk deer in Mongolia has plummeted by some 83 per cent since the 1970s, landing them on the country’s red list of critically endangered species. A UN-supported biodiversity initiative is helping to stop the deer from disappearing altogether.
Talk about a gift that keeps on giving; each month reveals yet another beautiful pooch answering nature’s call. Also important: $1 from each “Pooping Pooches 2022” calendar is donated to the Maui Humane Society to support animals in need. This tasteful calendar is available on Etsy and Amazon, but you can also get 500 piece jigsaw puzzle for those long, dark winter evenings!
This year’s latest addition is a 500 piece jigsaw puzzle which can also be purchased on Amazon (not suitable for babies and individuals who have a tendency to put things in their mouth and potentially choke on the pieces).
Just like the calendar, every puzzle sale will also contribute to Maui Humane Society to help animals in need (one poop at a time).
Anyways, if pooping dogs is something you would like to look at for a whole year, you can get this calendar on Etsy or Amazon.
After vowing to retaliate against Lithuania’s move to allow Taiwan open a “representative office” in Vilnius, Beijing has announced it is downgrading diplomatic relations with the Baltic state.
In a statement on Sunday, the Chinese foreign ministry said that China’s diplomatic relations with Lithuania will be formally lowered to the level of charge d’affaires, while blasting Vilnius for setting a “bad international precedent” by giving the island the green light to open its mission in the Lithuanian capital.
The ministry went on to accuse Vilnius of undermining the One China principle and the principle of neutrality in bilateral relations, explaining its decision to demote relations by citing the need to “safeguard its sovereignty and the basic norms of international relations.”
“The Lithuanian government must bear all the consequences arising from this,” the ministry said, while calling on Vilnius to “correct its mistakes immediately.”
“No matter how the ‘Taiwan independence’ forces distort facts and reverse black and white, they cannot change the historical fact that the mainland and Taiwan belong to the same China,” the ministry asserted.
The move comes just two days after Beijing went on a verbal offensive against the Baltic country, warning that pushback for its cozying up to Taiwan would be imminent. “As to what necessary measures China will take, you may wait and see,” it said at the time.
Lithuania and China have been embroiled in a diplomatic row and have not maintained relations at ambassadorial level since September. After the Baltic state revealed that it would be opening a de facto Taiwanese embassy, China withdrew its ambassador from the country in August. Vilnius followed suit the following month.
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AstraZeneca has announced that its preventative antibody cocktail offers 83% protection against symptomatic Covid-19 for at least six months, making it more effective than its own vaccine.
In a statement on Thursday, AstraZeneca cemented its lead in the race to develop and market a preventative Covid-19 drug, which is delivered as a shot in the arm.
The drug, named AZD7442, reduces the risk of symptomatic Covid-19 by 83% over the course of six months, according to data from a trial in which participants were given one 300mg dose. There were no deaths or severe infections recorded within the trial group, it said.
A separate trial showed the drug reduced the risk of severe Covid-19 or death by 88% when administered within three days of the onset of symptoms.
“These new data add to the growing body of evidence supporting AZD7442’s potential … We are progressing regulatory filings around the world and look forward to providing an important new option against SARS-CoV-2 [Covid-19] as quickly as possible,” AstraZeneca Executive Vice President Mene Pangalos said in the statement.
The Anglo-Swedish firm has agreed to supply the US government with 700,000 doses of AZD7442 if the Food and Drug Administration grants it emergency use, which AstraZeneca requested on October 5. The firm has similar agreements with other nations.
The drug is created using a combination of two antibodies originating from immune B-cells donated by a recovering Covid-19 patient.
The treatment could be used in people who are known not to respond well to vaccines, such as cancer patients. Around 2% of people are considered to be at risk of not creating enough antibodies following the administration of a Covid-19 vaccine.
Based on the numbers, the drug appears to be more effective than the firm’s first-generation Covid-19 vaccine. Britain’s Zoe Covid study showed the effectiveness of the vaccine dropped to around 67% after four to five months.
Controversial psychologist and author Jordan Peterson claimed Western countries had no “moral right” to force developing nations to reduce pollution output, noting instead that improving their economies was key.
During an appearance on the BBC’s ‘Question Time’ show on Thursday, the Canadian professor noted that the focus of climate change policies should be on incentivizing the development of cheap energy in poorer polluter countries.
“The best long term solution is to try to make developing countries as rich as possible, and the best way to do that is not control their pollution output, but to help them develop the cheapest energy they can possibly manage as fast as they possibly can,” Peterson said.
The debate saw UK undersecretary for employment Mims Davies suggest that measures taken to tackle climate change should not come at the “expense of developing countries.” But Peterson countered that it “absolutely, 100% will be [at their expense].”
I don’t think we have any moral right in the West at all to do that.
He also criticized the recent COP26 climate change conference for failing to explore ideas on how best to improve national economies in the developing world, noting that he saw “very little of that sort of idea” coming out of the UN summit.
In the final hours of the two-week conference, China and India had intervened to soften the wording around the use of coal in the Glasgow Pact. The two countries demanded a change in the final text of the agreement that called for coal to be phased out, revising this to “phasing down unabated coal.”
The move prompted COP26 president and UK minister Alok Sharma to declare that China and India would have to “justify” their actions to countries that were more vulnerable to global warming effects. However, officials in both Beijing and New Delhi have countered that the criticism was unfair.
The Swedish government has announced plans to introduce mandatory Covid-19 passes starting next month, amid rising infection rates in Europe. The passes will be required to attend any indoor event with 100 or more participants.
The upcoming introduction of mandatory coronavirus vaccine passes was announced by Health Minister Lena Hallengren on Wednesday.
Citing the ongoing surge in coronavirus cases across Europe – which has not hit the country itself yet – the minister stressed the need to be ready for the new wave of infections, projected to reach Sweden mid-December.
“The spread is increasing in Europe. We haven’t seen it yet in Sweden, but we are not isolated,” Hallengren told a news conference. “We need to be able to use vaccination certificates.”
Starting from December 1, the documents confirming a person’s vaccination status will be a requirement to enter any indoor event with 100 or more people in attendance. Sweden already boasts high vaccination rates, with 85% of its citizens aged over 16 having received at least one dose of a Covid-19 vaccine. Over 81% have received two shots or more, public health data shows.
Earlier in the day, the country’s health authorities backtracked on a highly controversial decision to stop testing fully vaccinated people who showed symptoms of Covid. The recommendation was rolled out in October, leading to a 35% decline in Covid-19 tests taken.
“The Public Health Agency has decided to recommend that the regions offer testing to everyone who is 6 years and older who gets symptoms that may be COVID-19,” the health authority said in a statement.
Sweden bucked the trend among European governments in its approach to handling the pandemic, electing not to impose widespread lockdowns. Having relied primarily on voluntary measures and social distancing, the country displayed several times higher death rates per capita than its Nordic neighbors, though it still fared better than many European countries, registering some 1.18 million cases and just over 15,000 coronavirus deaths since the beginning of the pandemic.
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The EU must quickly seal its external borders to stem the flow of migrants who are no longer welcome in the 27-member bloc, according to Slovenia’s interior minister, whose country currently holds the presidency of the EU Council.
Speaking at the ‘Sarajevo Migration Dialogue’ on Thursday, Interior Minister Ales Hojs said EU countries were preoccupied recently with the coronavirus pandemic, the fall of the government in Afghanistan, and now a migrant crisis on the Poland-Belarus border, which he said was a hybrid war waged by Minsk against the EU.
“All three have additionally contributed to the increase in numbers of illegal migrants moving towards Europe and the Balkans, destabilizing the European Union,” Hojs told reporters.
The Slovenian minister said the current situation was similar to the 2015 influx of refugees and migrants from the Middle East and North Africa, when the EU admitted over one million people across its borders.
This time the situation is different, Hojs said, warning that “there is no more ‘refugees welcome.’”
“I believe that external borders must be secured, even with fences if necessary,” Hojs said, saying that he supported a plan for Brussels to finance the building of fences to reinforce the bloc’s borders.
He said it was important to strengthen cooperation and partnership across the EU in order to better manage migration and maintain security.
Thousands of migrants have been trying to cross the Belarus-Poland border in an attempt to reach the EU. They have been stranded at barbed-wire fencing with Polish border guards repelling their attempts to cross. Warsaw has accused Belarus of orchestrating the crisis to destabilize the EU and “weaponize” migration in an effort to have sanctions lifted.
A spokesperson for Belarusian leader Alexander Lukashenko claimed on Thursday that Germany agreed to open a humanitarian corridor for 2,000 refugees on the border.
An Argentinian woman has become the second-ever HIV-infected person whose immune system helped defeat the virus without requiring additional medical treatment. She was first diagnosed with the AIDS-causing infection in 2013.
Scientists have dubbed the 30-year-old mother the “Esperanza patient,” after her hometown. The word ‘esperanza’ translates to ‘hope’ in English. Publishing their findings in the Annals of Internal Medicine journal on Monday, the researchers said the discovery boosts hope for a “sterilizing cure” for the estimated 38 million people with the life-long infection.
“I enjoy being healthy,” the Esperanza patient told NBC News over email. “I have a healthy family. I don’t have to medicate, and I live as though nothing has happened. This already is a privilege.”
The study found no intact remnants of the virus in the 1.5 billion blood and tissue cells the researchers analyzed – confirming the discovery first announced in March at an international meeting of HIV experts.
No additional information about the woman has been made public, but she was described at the time as “athletic and beautiful” and revealed to have an HIV-negative boyfriend and newborn baby.
Only one other person, identified in August 2020 as 67-year-old Loreen Willenberg from San Francisco, has been confirmed to have overcome the virus without medical intervention. The two women have been labeled ‘elite controllers’, referring to a rare subset of HIV patients who show no signs of the infection despite not undergoing antiretroviral treatments.
Typically, an HIV-infected person requires constant drug therapy to prevent the virus from attaching to their immune cells’ DNA and replicating. But, in the eight years since she was diagnosed, the Esperanza patient only received medication for six months during pregnancy to ensure her baby would be healthy.
In all, there have been four patients cured of HIV, two of whom – the ‘Berlin patient’ Timothy Ray Brown and the ‘London patient’ Adam Castillejo – were also cancer patients who received risky bone marrow transplants from donors with HIV-resistant genes. However, the success of their procedures is yet to be replicated.
“This is really the miracle of the human immune system that did it,” Dr. Xu Yu, an immunologist at the Ragon Institute in Boston, who co-authored the study, told NBC.
