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.
American billionaire Bill Gates has claimed Covid-19 deaths and infections may drop below seasonal flu levels next year as more people get vaccinated and treatment improves, unless we encounter a new, more deadly variant.
Speaking on Thursday in a virtual interview at the Bloomberg New Economy Forum in Singapore, founder of Microsoft stated that vaccines, natural immunity and emerging oral treatments mean that “the death rate and the disease rate ought to be coming down pretty dramatically.”
The tech mogul, who has been particularly vocal during the pandemic, said issues around vaccine-production capacity are likely to be replaced by distribution challenges and even waning demand.
“The vaccines are very good news, and the supply constraints will be largely solved as we get out in the middle of next year, and so we’ll be limited by the logistics and the demand,” he noted.
He also told his audience that it remains to be seen how much demand there is for Covid-19 shots in places like Sub-Saharan Africa.
Calling for more work to eradicate flu, Gates claimed Covid-19 rates and deaths would possibly fall below those of flu by the middle of next year, unless more deadly coronavirus variants emerge.
The Bill and Melinda Gates Foundation has involved itself in the development of vaccines and virus surveillance, calling for a global response to the Covid-19 pandemic. The foundation has invested hundreds of millions dollars in the development and distribution of potentially lifesaving shots.
According to the World Health Organization, influenza kills up to 650,000 people each year. At least five million people have died from Covid-19 since the pandemic began in late 2019.
Germany has been plunged into a “nationwide state of emergency” because of its current high level of Covid infections, acting health minister Jens Spahn has said. He also refused to rule out further lockdowns.
“The situation is serious, the dynamic is unbroken,” Spahn told a press conference Friday.
“The incidence has increased fivefold in four weeks. We see sadly high values in the death rate. We are in a national emergency.”
Spahn refused to rule out the possibility of another lockdown, saying that, in such a drastic health situation, “we can’t rule anything out.”
The head of the Robert Koch Institute (RKI), Lothar Wieler, added to the gloomy picture by saying that “all of Germany is one big outbreak,” with an estimated half a million active Covid cases in the country – and numbers rising. For the third day in a row, more than 50,000 cases have been registered in the country, while the death toll in Germany since the start of the pandemic is above 98,700, according to figures compiled by the RKI.
Wieler added that, with many hospitals already overwhelmed, more should be done to tackle the spread of the virus. Besides obvious measures such as vaccination and wearing masks, he also suggested closing poorly ventilated bars.
On Thursday, lawmakers in the Bundestag approved new measures in the fight against coronavirus, including requirements to prove vaccination status, a negative test, or proof of recovery from infection before employees can access communal workspaces or use public transport. The measures will have to be passed by the upper house before they can take effect.
Neighboring Austria announced on Friday that it would enter full lockdown as of Monday, November 22.
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People around the world will need to get a jab against Covid-19 once a year, at least when it comes to the Pfizer vaccine, BioNTech’s CEO Ugur Sahin said in an interview on Sunday, as he praised the quality of its booster shot.
In an interview with Germany’s Bild newspaper on Sunday, Sahin said he considers the vaccine, co-developed by his company, to be “very effective.”
When asked whether people should be worried about the “breakthrough infections” – in which those vaccinated with the Pfizer-BioNTech vaccine still developed Covid-19 symptoms – he dismissed such concerns, saying that the jab offers a “90 percent protection” against cases that require intensive care in those aged over 60.
A “very high” level of protection against severe illness lasts for up to nine months, the BioNTech CEO maintained. He said this level starts decreasing “from the fourth month,” however. To maintain the protection, Sahin strongly pushed for booster shots, arguing that they would not just restore levels of antibodies but would potentially help “to break … chains of infection.”
He also encouraged doctors to be “as pragmatic as possible” when it comes to greenlighting vaccination and “not to send people home unvaccinated even though they could be vaccinated without any problems.”
In the future, people might need to get booster shots once a year, the BioNTech CEO believes. He said that he expects protection from a booster shot to “last longer” than the initial immunity one acquires after getting two doses of the vaccine.
“Subsequent … vaccinations may only be needed every year – just like [with] influenza,” he said. Currently, the German Federal Center for Health Education – an agency subordinated to the Health Ministry – recommends a booster shot six months after one gets the second dose of a vaccine. It also says that “booster vaccination makes sense after a minimum interval of about four months.”
Sahin’s interview comes days after it was revealed that Pfizer, BioNTech and Moderna are making a combined profit of $65,000 every minute – all thanks to their Covid-19 jabs. That is according to estimates made by the People’s Vaccine Alliance (PVA) – a coalition demanding wider access to vaccines.
The PVA estimated that the three companies are to earn a total of $34 billion in combined pre-tax profits this year alone, which roughly translates into more than $1,000 a second and $93.5 million a day.
PVA has slammed the three companies over their refusal to allow vaccine technology transfer despite receiving a combined $8 billion in public funding. Such a move could increase global supply and save millions of lives as well as drive down prices, the coalition said.
“Pfizer, BioNTech and Moderna have used their monopolies to prioritize the most profitable contracts with the richest governments, leaving low-income countries out in the cold,” said Maaza Seyoum of the African Alliance and People’s Vaccine Alliance Africa.
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The longest lunar eclipse in over 500 years will occur in the early hours of November 19, lasting several hours.
The peak of the partial eclipse will take place in the predawn hours on Friday when 97% of the moon will be eclipsed by the Earth’s shadow. The previous longest partial eclipse took place in 2018 and lasted less than two hours, while this will last for several hours.
LONGEST PARTIAL ECLIPSE of the CENTURY to occur in the Pre-dawn hours of November 19th. Maximum eclipse is at 4:03 AM EST when 97% of the Moon will be eclipsed. At that time it will be high in our western sky. This will also be the longest partial lunar eclipse in 580 years! pic.twitter.com/Xa9ciXLp3V
The eclipse will be visible from all 50 US states, Canada, and Mexico, as well as parts of South America, Polynesia, Australia, and China, according to NASA.
The moon will be at its farthest point from Earth during the eclipse, slowing its orbit and extending the time it takes to move out of the darkest part of the planet’s shadow, known as the umbra, as the moon, Earth, and sun will all be aligned. The Holcomb Observatory has released a video detailing what the eclipse will look like.
Movie of the “NEAR TOTAL ECLIPSE.” LONGEST PARTIAL LUNAR ECLIPSE in 580 years occurs on morning of November 19th. 1st parts of the eclipse begin at 1:02AM EST. Max eclipse occurs at 4:02 AM when 97% of MOON in darkest part of Earth’s shadow. pic.twitter.com/2HwPpqPbbd
The event will begin shortly after midnight and unlike a solar eclipse, no one will need special eyewear to view the phenomenon.
When the eclipse occurs, the moon will take on a reddish hue, with only a sliver of the actual moon visible. The event will last for several hours, making it the longest of its kind in 580 years, with the next lunar eclipse not occurring until May of 2022.
A pack of wild boars were rounded up and euthanized after one of the animals attacked a police officer in the streets of Hong Kong – the opening shot in a pitched battle between the feral hogs and the city’s law enforcement.
A group of veterinarians took seven wild boars into custody, euthanizing the beasts after knocking them out with dart guns in an area near the financial center of the city, according to a statement from Hong Kong’s Agriculture, Fisheries, and Conservation Department on Thursday.
The pigs were captured after one attacked a police officer last week, an act which reflects the city’s new policy toward the animals: stop them before they attack again.
The aggressive boar knocked down a police officer by biting his leg last week as the two faced off in a residential car park, the pig only losing the battle after falling off the building to its death. The wild boars are apparently “accustomed” to wandering back and forth along the roadway, begging for food from pedestrians and vehicles alike. Previously, the city had handled the population by capturing and sedating the animals, then relocating them to “remote areas,” according to the the department.
Hong Kong CEO Carrie Lam vowed to increase penalties for those citizens found feeding the boars, which have reportedly been responsible for some 30 attacks in recent years. While residents are warned not to feed the boars so as not to encourage population growth or disease outbreaks, the animals are a favorite among some visitors. Still, Lam insisted “we can’t simply sit on our hands while things deteriorate.”
Animal rights groups have responded with a protest letter against a policy of euthanasia, pointing out that most visitors do not feed the boars and arguing resources should be directed toward stopping the human activity rather than blaming all the boars. Allowing the boars to be captured and killed “ignores their right to live and considers their existence in urban areas as a capital offense,” the letter read.
An exoplanet some 70% the mass of Jupiter and about 1.4 times its size has been discovered by astronomers at India’s Physical Research Laboratory (PRL). The behemoth is 752 light years away from Earth, and has an incredible orbit.
The new discovery was revealed by the Indian Space Research Organization on Tuesday in a statement saying the country’s PRL Advanced Radial-velocity Abu-sky Search (PARAS) had measured the movements of the newly-discovered exoplanet between December 2020 and March 2021.
The planet, named either HD 82139 or TOI 1789 depending on which cataloguing method is used, is ultra-hot – with a surface temperature up to 2,000 degrees Kelvin.
India’s PRL Advanced Radial-velocity Abu-sky Search (PARAS), an optical fiber-fed spectrograph, observed t he exoplanet and its movements from the Mt. Abu Observatory, according to the space agency. Not only is the planet ultra-hot, but it is also one of the closest to an orbiting star yet discovered.
The measurements obtained via PARAS were confirmed by Germany’s TCES spectrograph in April, and further verified by independent photometric observations from the PRL’s 43cm telescope, also located at Mt. Abu.
The exoplanet has an unusually quick orbit – a mere 3.2 days. The pace indicates that its distance from its host star is one-tenth the distance between Mercury and the Sun. This makes the exoplanet one of fewer than 10 such solar systems discovered thus far. Given the closeness to its host star – an aging orb 1.5 times the mass of the Sun – the new planet is also one of the lowest density planets yet discovered.
Planets so close to their host stars, with a distance less than 0.1 AU and masses between 0.25 to several times the mass of Jupiter, are known as “hot-Jupiters.”
The Indian space agency hailed the detection of the new planet as an opportunity to “enhance our understanding of various mechanisms responsible for inflation in hot-Jupiters and the formation and evolution of planetary systems around evolving and aging stars.” It is the second planet to be discovered by PARAS, with a previous discovery taking place in 2018.
France has imposed a curfew on its overseas territory of Guadeloupe and is sending extra police to the island, citing days of “violence,” unrest and vandalism in response to harsh pandemic restrictions.
“Given the ongoing social unrest and acts of vandalism, the prefect of Guadeloupe has decided to establish a curfew starting today from 6pm to 5am,” Alexandre Rochatte, who represents the archipelago as prefect, said on Friday.
Earlier on Friday, the French Interior Ministry noted that 200 French police officers and gendarmes would be shipped into Guadeloupe in the coming days to crack down on the “violence” and “restore republican order.”
The move comes after nearly a week of heated protests over local Covid-19 policies – which include mandatory vaccinations for healthcare staff and other ‘essential’ workers, among other things. Demonstrators have torched cars and erected burning barricades in the streets, while doctors, firefighters and other professionals have walked off their jobs in protest, according to Reuters.
Barrages incendiées et affront*ments cette nuit en #Guadeloupe où la grève générale illimitée, enclenchée contre le pass sanitaire et l’obligation vaccinale exprime désormais une colère plus large contre les problématiques sociales, économiques et environnementales de l’île. pic.twitter.com/gXToww1gXZ
In footage circulating online earlier this week, men purported to be protesting firefighters were seen soaking police with a water hose hooked up to a nearby fire hydrant. Officers quickly shut off the spigot.
A firefighter sprinkles the gendarmes during the evacuation of a dam in #Guadeloupe where an unlimited general strike began today against the health pass and compulsory vaccination under penalty of suspension but also to denounce other problems of the territory . pic.twitter.com/lDtDkMx4YZ
As in mainland France, residents are also required to present proof of vaccination, a negative PCR test or show they recently recovered from the virus in order to enter a number of public establishments, including restaurants and museums.
Those policies have proven unpopular for many locals, with trade unions launching indefinite strikes in protest over the past week, joined by other residents in street demonstrations.
Controversial agriculture laws that saw farmers across India protesting for over a year are going to be rolled back, Prime Minister Narendra Modi has unexpectedly announced.
“I want to tell the country that we have decided to repeal the three farm laws,” Modi said in a televised address on Friday, which local media described as “stunning.”
The Indian parliament will complete the constitutional process of repealing the agricultural legislation in late November, he added.
However, the PM again defended the divisive legislation, saying that the reform of the sector, which accounts for some 15% of India’s $2.7 trillion economy, was actually aimed at supporting the country’s small farmers.
Whatever I did was for farmers. What I am doing is for the country.
“Maybe something was lacking in our efforts, which is why we couldn’t convince some farmers about the laws,” Modi acknowledged.
The laws, which were introduced last September, allowed farmers to sell their crops outside of the government-regulated wholesale markets, in which they were guaranteed a minimum price.
The government argued that it would see them earning more, but growers feared that that move would, on the contrary, cause a drop in prices and make them hostages to large corporations.
Thousands of farmers joined the protests against what they called “black laws,” and some rallies turned violent. A year later, many demonstrators remain camped along roads outside the capital New Delhi.
And the farmers aren’t planning on going home just yet, with one of their leaders saying on Twitter: “We will wait for parliament to repeal the laws.”
Modi’s concession to the protesters may have been unexpected, but it comes several months ahead of elections in India’s most populous state of Uttar Pradesh, as well as two other northern states with large rural populations.
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Truckers and other motorists have been trapped in a four-mile-long traffic jam on the outskirts of the Dutch city of Rotterdam amid a protest against the government’s Covid measures.
According to local media, as many as 200 activists blocked the gates of a major port in the city’s harbor on Thursday. For several hours, they prevented any vehicles from driving in and out of the cargo hub, which, in turn, led to massive traffic congestion on the highway leading to the port. Police engaged in negotiations with the protesters, who eventually relented and left the site later in the evening.
The group behind the protest action is reportedly Dockers United, who are staunchly opposed to government Covid policies. The organization’s biggest concern is that authorities could soon make it mandatory for employees to have a vaccination or recovery certificate to enter the workplace, which, as the group argues, would be tantamount to excluding people from society on an “unconstitutional basis.” They are also generally unhappy with the curbs introduced by the Dutch government, with ‘Don’t normalize what’s not normal’ being a translation of one of their slogans.
In fact, the Dutch government did announce earlier this month that it was working on introducing a ‘corona pass’ for the workplace, though it isn’t clear yet when this measure will be rolled out and how strict it will be.
Meanwhile, on Friday the EU country logged its highest-ever number of new Covid cases within 24 hours, with that figure reaching 23,591. Medics say they are working at capacity.
Amid the spike, the Dutch prime minister imposed a partial lockdown last Saturday, which requires bars, restaurants, cafes and supermarkets to close at 8pm, while shops selling non-essential goods are to shut by 6pm. Public gatherings are banned altogether.
