Maher's Digital World


Offline scarface

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Re: Documentaries
« Reply #220 on: September 20, 2019, 11:38 AM »
Tonight, I'm going to talk about the black hole at the center of our galaxy, because according to scientists, this black hole seems to be more and more hungry.

Vasudev and Maher must be wondering what a black hole is. What does it look like?
Maybe some of you are thinking the photo below represents the black hole at the center of the universe.

Actually, the black hole of the universe looks like this:

This is a hearty meal that Sagittarius A, the black hole in the center of our Milky Way, has begun. UCLA researchers are struggling to find an explanation for this "appetite".
Their analysis is based on more than 13,000 observations of the black hole, made over 16 years. Some of the most recent ones would be "unprecedented".

A hole not so black.
Andrea Ghez, professor of physics and astronomy at UCLA (University of California - Los Angeles), recalls the results with amazement: "We have never seen anything like since we studied this hole. In general, it's a pretty quiet black hole. We do not know what induces such a feast.

The extent of this "feast" seems considerable indeed. Since 2003, astronomers have completed more than 13,000 observations of the 133-hole black hole using two Chilean and Hawaiian telescopes. On May 13, they realized that the area close to the point of no return (the area from which matter can not escape once entered) was twice as bright as the brightest event ever observed. However, this brightness corresponds in fact to the radiation of gases and matter swallowed by the black hole.

This year, more observations were made: big changes, described as "unprecedented" by Andrea Ghez, were also observed on these occasions. On one of the four nights of observation between April and May 2019, Tuan Do, one of the authors of the study, said: "In the first observations I made that night, Sagittarius A was so bright that I thought I confused it with the star S0-2. But it soon became clear that the source was to be the black hole.

Looking for explanations.
The star S0-2 is one of the hypotheses raised to explain the more intense activity of the black hole. Indeed, this star which was particularly close to Sagittarius A in the summer of 2018, could have released a large amount of gas, which would have reached the point of no return this year, creating a strong activity in the surrounding area. .

The high brightness, indicates, as we mentioned before, gas and dust falling into the black hole. It raises questions among researchers: is it an isolated event or a real increase in black hole activity? For Mark Morris, also professor of physics and astronomy at UCLA, and co-author of the study, "the big question is whether the black hole enters a new period - for example if the gas rate falling into the black hole increased for a prolonged period - or if we simply witnessed the fireworks from some unusual gas blocks. "

In any case, the black hole, which is some 26 000 light years from Earth, poses no danger to it. Nevertheless, the team continues its observations of the phenomenon, seeking to learn more: "We want to know why this supermassive black hole becomes brighter, and how brighter it becomes." A paradox for a black hole.

Offline scarface

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Re: Documentaries
« Reply #221 on: September 30, 2019, 05:26 AM »

Offline scarface

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Re: Documentaries
« Reply #222 on: October 01, 2019, 01:14 PM »
Tonight, I'm giving you a few good articles of the newspaper Le Figaro. You know that you can have a full access with this app, if you are willing to read articles in French:

An article about Saudi Arabia:

The policemen are taking to the streets:

Nicolas Sarkozy to face trial for campaign finance fraud in the Bygmalion scandal after Top French court rejected bid to avoid trial:

Offline scarface

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Re: Documentaries
« Reply #223 on: October 11, 2019, 06:30 PM »
Tonight, I'm going to hold a conference about the arrest of Dupont De Ligonnès.

Xavier Dupont de Ligonnès, a Frenchman who is suspected to have killed his entire family in 2011 and has been on the run since, was arrested in Glasgow on Friday, AFP reported, citing police sources.
His family was discovered buried in the garden of their family home in Nantes.
Dupont de Ligonnès had disembarked from a flight from Roissy-Charles de Gaulle airport, near Paris, AFP reported.
"On Friday, 11 October 2019, a man was arrested at Glasgow Airport and remains in police custody in connection with a European Arrest Warrant issued by the French Authorities", a Police Scotland spokeswoman told Euronews.

He was travelling under a false name, but his fingerprints betrayed him. He opposed 'no resistance' to his arrest, according to French newspaper Le Parisien, which broke the news.
Dupont de Ligonnès had disappeared before his family's bodies were found, and the murders had never been solved.
Police found a message he had sent in 2010 in which he had said he wanted to kill his family.

According to the AFP quoting a source close to the case, Dupont de Ligonnès travelled on a French passport that was stolen in 2014, and had "probably spent a part of his time on the run in the UK".
Before the murders, Dupont de Ligonnès had told neighbours and his children's schools that he was a secret agent and that the family was leaving to join a witness protection scheme.

He was last seen in April 2011, appearing on the 14th on a CCTV video as he withdrew money, and on the 15th as he left a hotel. His wife and children's bodies were discovered six days later.

His arrest followed an "anonymous denunciation", AFP reported. Le Parisien reported that he had been living in Scotland for some time.

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Re: Documentaries
« Reply #224 on: October 12, 2019, 06:48 AM »
It turned out that the man arrested at Glasgow Airport is not Xavier Dupont de Ligonnès.

French and Scottish investigators today ruled that fingerprints of the man detained in Glasgow yesterday do not match those of missing suspect Dupont.
It comes after sources in Paris claimed the businessman allegedly arrived at Glasgow International Airport from Charles de Gaulle Airport in Paris.

Dupont, a devout catholic, has been actively sought by police since his disappearance, was subject to an Interpol red notice and has been “sighted” many times over the years.

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Re: Documentaries
« Reply #225 on: October 12, 2019, 10:09 AM »
Today, in La Défense, anti-globalization activists wanted to put Total, Amazon and BNP Paribas out of service.

Forty activists covered the headquarters of several multinationals on Saturday to denounce their role in climate change.
On Saturday, October 12th, at 9:00, about 40 activists from Attac redecorated Total's headquarters in La Défense with banners, also covering the black gouache windows with fire extinguishers and affixing a large poster. on the glass facade, on which one could read: "Danger: Total, Out of service. Harmful for you and the planet. Dickens Kamugisha was also present, the executive director of the NGO Afiego who, with Friends of the Earth France, is preparing to sue Total for its "mega-petroleum" project in Uganda.

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Re: Documentaries
« Reply #226 on: November 18, 2019, 10:02 AM »
Tonight, I'm going to hold a conference about the onion shortage in Bangladesh.

A man works at an onion wholesale market in Dhaka, Bangladesh.

In a bid to mitigate an onion crisis in its local markets, Bangladesh has decided to import 300 tons of the vegetable from Pakistan after nearly 15 years, despite strained diplomatic relations between the two countries in recent years.

Relations between Islamabad and Dhaka have never recovered from the 1971 war, when Bangladeshi nationalists broke away from what was then West Pakistan. Most recently, relations have been marred by the trials of prisoners taken in Bangladesh during the war nearly five decades ago. Pakistan publicly condemned the trial process by Dhaka, which the latter considered an interference into its internal affairs.

The surprise decision to import from Pakistan was taken during a government-level discussion on Friday, when Bangladesh’s Tasho Enterprise finalized the deal with Karachi-based Roshan Enterprise, as reported by Pakistan’s The News International.

Last September, following a ban on onion exports in India, the price of onions in Bangladesh rose threefold.

Experts in Bangladesh said the rise of trade relations between Pakistan and Bangladesh, especially with the new “onion diplomacy” could prove to have some positive impact over diplomatic relations between Dhaka and Islamabad.

“With this onion diplomacy, there is the chance of expanding trade relations between the countries,” Dr. Delwar Hossain of Dhaka University told Arab News, adding: “It will definitely have a good impact on diplomatic relations but I would not say it will create a new era of their relationship overnight.

“As a whole, if Bangladesh reviews its foreign policy in a pragmatic context, the latest onion import trading may take a positive turn in terms of diplomatic relations,” Hossain said.

Last year, Dhaka did not approve the appointment of a new Pakistan high commissioner in Bangladesh.

Islamabad has been waiting for the appointment’s approval for over a year, though it is expected to come soon, sources inside Pakistan’s Dhaka mission said.

Former Bangladesh Ambassador to the US Humayun Kabir told Arab News that the onion trade could open up a window for better diplomatic relations if the political leadership of both countries wanted it to, but that it was still too early to consider it a diplomatic win.

“Bangladesh needs onions and so we are importing them from Pakistan. But at this moment, there is not enough scope to attach it with diplomacy,” Kabir said.

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Re: Documentaries
« Reply #227 on: November 18, 2019, 03:10 PM »
Tonight, I'm going to hold another conference about the Paris agreement which was adopted in December 2015.

Look at the maps below.

An environmental and economic disaster from human-induced climate change is on the horizon.

To achieve the Paris Agreement’s most ambitious goal of keeping global warming below 1.5°C (2.7°F)
above pre-industrial levels requires reducing global greenhouse gas (GHG) emissions by 50 percent by

An analysis of current commitments to reduce emissions between 2020 and 2030 shows that 75 percent of the climate pledges are partially or totally insufficient to contribute to reducing GHG emissions by 50 percent by 2030, and some of these pledges are unlikely to be achieved.
Of the 184 climate pledges, 36 were deemed sufficient (19 percent), 12 partially sufficient (6 percent), 8 partially insufficient (10 percent) and 128 insufficient (65 percent). Because the climate pledges are voluntary, technicalities, loopholes and conditions continue to postpone decisive global action to reduce emissions and address climate change.
All countries need to reduce emissions to meet the Paris Agreement targets, although not all countries have equal responsibility because of the principle of differentiated responsibility, historical emissions, current per person emissions and the need to develop. Emissions from the top four emitters combined account for 56 percent of global GHG emissions –China (26.8 percent), the United States (13.1 percent), the European Union and its 28 Member States (9 percent) and India (7 percent). The analysis of their pledges show that:
• China, the largest emitter, is expected to meet its pledge of “reducing its carbon intensity by 60-65
percent from 2005 levels by 2030” (or the amount of CO 2 emissions per unit of GDP).
However, China’s CO 2 emissions increased by 80 percent between 2005 and 2018 and are expected to continue to increase for the next decade given its projected rate of economic growth.
• In 2015 the United States committed to reducing “GHG emissions by 26-28 percent from 2005 levels by 2025”. However, the current administration announced the United States withdrawal from the Paris Agreement and has cut federal regulations meant to curb emissions. State and local efforts are being implemented to try and meet the United States pledge. These efforts are mainly focused on electricity generation and automobile emissions.
• The European Union and its 28 Member States committed to reduce GHG emissions “at least 40 percent from 1990 level” by 2030. The EU and its Member States are on track to cut GHG emissions by 58 percent by 2030.
• India’s emissions are growing rapidly. Its pledge to reduce “the emissions intensity (of all GHGs) of its GDP by 30-35 percent from 2005 level by 2030” is expected be met.
However, India’s GHG emissions increased by about 76 percent between 2005 and 2017 and, like China, are expected to continue to increase until 2030 due to economic growth.

The Russian Federation, the fifth largest GHG emitter, has not even submitted its plan to cut emissions yet.

From the remaining 152 pledges, 126 are partially or totally dependent on international finance, technology and capacity building for their implementation. A portion of these commitments may not be implemented because little international support has been materialized.
Thus, at least 130 nations, including 4 of the top 5 world’s largest emitters, are falling far short of contributing to meeting the 50 percent global emission reductions required by 2030 to limit the global temperature increase to 1.5°C above pre-industrial levels.
« Last Edit: November 18, 2019, 03:13 PM by scarface »