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.
The Robert Koch Institute, Germany’s disease control agency, has warned that the country will face a “really terrible Christmas” unless steps are taken to mitigate a huge rise in Covid-19 cases.
Speaking on Thursday, the director of the Robert Koch Institute, Lothar Wieler, reiterated the case for new, strict countermeasures to prevent the spread of Covid-19.
“We are currently heading toward a serious emergency,” Wieler stated, adding “we are going to have a really terrible Christmas if we don’t take countermeasures now.” He added that hospitals were already struggling to find enough beds.
Wieler has called for a campaign for a further increase in vaccine uptake, from the current 67% to well over 75%.
The diseases institute director also believes bars, nightclubs, and other large-scale venues should be temporarily forced to close, and that other areas of public life should be off-limits to the unvaccinated.
His comments come as German leaders ponder new restrictions to replace the nationwide epidemic rules, which could include a lockdown of the unvaccinated, following measures already taken in neighboring Austria.
On Thursday, in an attempt to counter waning immunity levels, the country’s vaccine advisory board recommended that booster shots be made available to everyone aged 18 or above.
With about 2.3 million people already suffering with serious water, food and pasture shortages in Somalia, a rapidly worsening drought could lead to an “extreme situation” by April next year.
Scientists have used artificial intelligence to “predict” formulas for new designer drugs, with the stated goal of helping to improve their regulation. The AI generated formulas for nearly nine million potential new drugs.
Researchers with the University of British Columbia (UBC) used a deep neural net for the job, teaching it to make up chemical structures of potential new drugs. According to their study, released this week, the computer intelligence fared better at the task than the scientists had expected.
The research team used a database of known designer drugs – synthetic psychoactive substances – to train the AI on their structures. The market for designer drugs is ever-changing, since their manufacturers are constantly tweaking their formulas to circumvent restrictions and produce new “legal” substances, while cracking their structure takes months for law enforcement agencies, the researchers said.
“The vast majority of these designer drugs have never been tested in humans and are completely unregulated. They are a major public-health concern to emergency departments across the world,” one of the researchers, UBC medical student Dr. Michael Skinnider has said.
After its training, the AI was able to generate some 8.9 million potential designer drugs. Afterwards, researchers ran a data sheet of some 196 new drugs, which had emerged in real life after the model was trained, and found that more than 90% of these have been already predicted by the computer.
“The fact that we can predict what designer drugs are likely to emerge on the market before they actually appear is a bit like the 2002 sci-fi movie, Minority Report, where foreknowledge about criminal activities about to take place helped significantly reduce crime in a future world,” senior author Dr. David Wishart, a professor of computing science at the University of Alberta, has said.
Identifying completely unknown substances remains an issue for the AI, the research team has noted, but they hope it might potentially help with that task, since the computer was also able to predict which formulas of designer drugs were more likely to be created and hit the market. The model “ranked the correct chemical structure of an unidentified designer drug among the top 10 candidates 72 percent of the time,” while throwing in spectrometry analysis, which is an easily obtained measurement, bumped the accuracy to some 86%.
“It was shocking to us that the model performed this well, because elucidating entire chemical structures from just an accurate mass measurement is generally thought to be an unsolvable problem,” Skinnider stated.
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Despite COVID-19 lockdowns and restrictions, some 650,000 women and girls were provided with gender-based violence services through a joint UN and European Union (EU) programme working to stamp out what is arguably one of the most prevalent human rights violations.
France shouldn’t remain silent on Julian Assange, leftist leader Jean-Luc Melenchon has said, after the imprisoned WikiLeaks co-founder’s father suggested that Paris could offer asylum to his son.
The life of Assange – who is being held in solitary confinement at London’s Belmarsh maximum security prison while a British court considers an extradition request by the US – is under threat, Melenchon wrote on Twitter on Tuesday.
“For years, we’ve been calling for France to accept him,” the head of the leftist La France Insoumise (France Unbowed) party said, insisting that “France shouldn’t remain silent.”
The statement by Melenchon, who won 19.6% of the ballot in the first round of the French presidential election in 2017, follows a visit by Assange’s father, John Shipton, to the Whistleblower Meeting in Paris on Monday.
During the event, Shipton told Sputnik news agency that it would be “an honorable thing” for the French government to grant his son asylum.
“I feel that France hasn’t attacked Julian over the last 12 years and consequently France is free to act in return for the information that WikiLeaks and Julian brought to France,” he said, referring to the website’s revelations of the US intelligence agencies spying on French presidents and hacking into local banks.
🔴 John #Shipton : «La France n’a pas attaqué #Julian pendant les dernières années difficiles, donc la France est libre d’agir en échange des informations que #WikiLeaks et Julian ont apportées à la France. Ce serait honorable pour la #France d’offrir [l’asile] à Julian #Assange» pic.twitter.com/ceZ7qTARua
Several dozen French lawmakers have also recently called upon Paris to take Assange in, with the Australian-born publisher’s legal team saying last year that their client was hoping to find asylum on French soil.
Assange could face up to 175 years behind bars if he’s extradited to the US, where he’s wanted on espionage charges over the release by WikiLeaks of classified documents on Iraq, Afghanistan, Guantanamo Bay, and others.
He was placed in Belmarsh in April 2019 over breach of bail, after being holed up in the Ecuadorian Embassy in London for seven years.
The publisher had been fleeing an arrest warrant issued over sexual assault allegations which he has always denied, and which failed to result in any actual charges due to lack of evidence.
Assange’s supporters insist that he has actually been persecuted over his legitimate journalistic activities and revealing the truth to the public.
The UK High Court is expected to rule on the appeal by the US against a lower court decision to bar the WikiLeaks co-founder’s extradition to America due to the 50-year-old’s poor health condition and risk of suicide.
Assange’s team will then be able to challenge the ruling in the Supreme Court if it’s not favorable.
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As India is mulling new rules for digital money, Prime Minister Narendra Modi has called for regulations to ensure cryptocurrencies like bitcoin do not “end up in the wrong hands,” warning that this could “spoil” young people.
While he did not expand on those concerns, Modi spoke on Thursday about the need for “democratic nations” to band together and deal with challenges posed by emerging technologies. He was delivering a virtual address at the Sydney Dialogue, an annual cyber-tech summit.
Noting that technology and data could either become “new weapons” for conflict or “instruments of cooperation,” Modi brought up digital currencies as an example of how it was important that like-minded nations “work together on this” to “ensure it does not end up in the wrong hands, which can spoil our youth.”
We are at a historic moment of choice. Whether all the wonderful powers of technology of our age will be instruments of cooperation or conflict, coercion or choice, domination or development, oppression or opportunity.
He also urged the development of technical and governance standards and norms, singling out the use of data, and called for renewed efforts to prevent manipulation of public opinion. In recent weeks, Indian authorities have raised concerns over claims of huge returns from cryptocurrency investment as well as its potential connections to money laundering, organized crime and terror financing.
On Saturday, Modi chaired a meeting to formulate the country’s approach to digital currencies and examine their impact on the economy. According to The Economic Times, Indian officials are drafting regulations to propose a ban on all transactions and payments in cryptocurrencies, while allowing investors to hold them as assets, similar to gold, bonds and stock shares.
Citing unnamed sources familiar with the government’s discussions, the newspaper said there was a belief in policy circles that crypto markets needed to be regulated in order to tackle the problem of opaque advertising that exaggerates investment returns in order to attract young investors.
The sources informed the newspaper that draft legislation on the matter was expected to be forwarded to Modi’s cabinet for consideration in the next two to three weeks.
In September, China had banned all cryptocurrency transactions and crypto-mining.
Rotterdam Mayor Ahmed Aboutaleb has described an anti-lockdown protest in his city as an “orgy of violence.” The Dutch demonstration devolved into a violent riot that saw police open fire on protesters.
Aboutaleb described the events of Friday night as an “orgy of violence,” after protesters packed Rotterdam’s central Coolsingel shopping street to voice their opposition to an ongoing partial lockdown, a ban on New Year’s Eve fireworks displays, and the possibility of a two-tiered system of freedom in the Netherlands, one of liberty for the vaccinated and restrictions for those without the jab.
The protest soon got out of hand, and police said on Saturday that 57 people were arrested. Protesters were seen torching police vehicles and launching fireworks at police, who shot at them in response.
Aboutaleb said that the cops had been “forced” to use their weapons. “On a number of occasions the police felt it necessary to draw their weapons to defend themselves,” he told reporters. “They shot at protesters, people were injured.”
Police say at least seven people were injured. Two of these injuries were caused by police bullets, and the victims are still in hospital. One officer was hospitalized, while several others were treated at the scene for minor injuries.
KARACHI, Nov 19 (IPS) – Balance is the absolute key, if you ask Alia Chughtai, a journalist who started a catering service with filmmaker Akhlaque Mahesar, by the name of Aur Chaawal (And Rice), two years ago.
Brazil’s former President Luiz Inacio Lula da Silva has said he is willing to stand as a candidate in elections against incumbent leader Jair Bolsonaro, labelling his potential opponent “a poor copy of Trump.”
Speaking in Brussels at a media conference in the European Parliament on Monday, Lula announced that the Workers Party needs to put forward a presidential candidate to take over from right-wing Bolsonaro in 2022 and said he was willing to run in the elections again.
“I’m willing, I’m motivated, I’m in good health,” Lula stated, adding that said he would only make his decision early next year, some months before the election scheduled for October 2022. The popular leftist said his candidacy would depend on whether the party wanted him.
“We need to have someone who stands, we need to win the elections. And at the same time, we have to rebuild Brazil,” he said, speaking on behalf of his Workers Party.
Lula, 76, also took aim at the incumbent president. “He’s a poor copy of Trump. But Bolsonaro doesn’t think, he doesn’t have any ideas,” the former president said, claiming the incumbent leader was hellbent on ensuring the beneficial legacies of Lula’s administration were “torn down.”
A recent poll put him 27 points ahead of Bolsonaro, despite his candidacy not officially being announced.
In 2010, Lula made way for his protégé, Dilma Rousseff. Rousseff was ousted from power in what was described by her supporters as a parliamentary coup. Lula served nearly two years in prison after being convicted on money laundering and corruption, despite a nine-and-a-half-year sentence. He was also barred from running in the 2018 election.
A number of judges have subsequently ruled that the case against Lula was unlawful and the Supreme Court annulled his earlier convictions, meaning he can face off against Bolsonaro in 2022.
