Displaying 18246-18250 of 153324 results.
07:27 Apr 30 2025
Name:
BenMes
Description:
Galatasaray Futbol Kulubu antrenman yap?yor <a href=https://galatasarayfutbol.com/>https://galatasarayfutbol.com</a> Burhan Felek Spor Kompleksi'nde bulunan kapal? spor salonu /spor salonu salon /kulup, Ergun Gursoy ise Galatasaray Olimpiyat Yuzme Havuzu'nda antrenman yap?yor.
07:26 Apr 30 2025
Name:
FrankNup
Description:
‘Dyson spheres’ were theorized as a way to detect alien life. Scientists say they’ve found potential evidence
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What would be the ultimate solution to the energy problems of an advanced civilization? Renowned British American physicist Freeman Dyson theorized it would be a shell made up of mirrors or solar panels that completely surrounds a star — harnessing all the energy it produces.
“One should expect that, within a few thousand years of its entering the stage of industrial development, any intelligent species should be found occupying an artificial biosphere which completely surrounds its parent star,” wrote Dyson in a 1960 paper in which he first explained the concept
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If it sounds like science fiction, that’s because it is: Dyson took the idea from Olaf Stapledon’s 1937 novel “Star Maker,” and he was always open about that. The late scientist was a professor emeritus at the Institute of Advanced Study in Princeton, New Jersey.
Still, coming from a thinker who some in the scientific community say might have been worthy of a Nobel Prize early in his career, the concept took hold and the hypothetical megastructures became known as Dyson spheres, even though the physicist later clarified that they would actually consist of “a loose collection or swarm of objects traveling on independent orbits around the star.”
In his paper, Dyson also noted that Dyson spheres would give off waste heat detectable as infrared radiation, and suggested that looking for that byproduct would be a viable method for searching for extraterrestrial life. However, he added that infrared radiation by itself would not necessarily mean extraterrestrial intelligence, and that one of the strongest reasons for searching for such sources was that new types of natural astronomical objects might be discovered.
“Scientists (at the time) were largely receptive, not to the likelihood that alien civilisations would be found to exist, but that a search for waste heat would be a good place to look,” said George Dyson, a technology writer and author and the second of Dyson’s six children, via email. “Science fiction, from ‘Footfall’ to ‘Star Trek,’ took the idea and ran with it, while social critics adopted the Dyson sphere as a vehicle for questioning the wisdom of unlimited technological growth.”
07:15 Apr 30 2025
Name:
Michaelarrah
Description:
How Trump changed his mind on tariffs
+2
Peter Nicholas, Garrett Haake and Carol E. Lee
Reporting from Washington
<a href=https://http-mgmarket5.ru>mgmarket2.at</a>
“Liberation Day” gave way to Capitulation Day last night.
President Donald Trump pulled back yesterday on a series of harsh tariffs targeting friends and foes alike in an audacious bid to remake the global economic order.
Image: President Donald Trump
Saul Loeb / AFP - Getty Images
Trump’s early afternoon announcement followed a harrowing week in which Republican lawmakers and confidants privately warned him that the tariffs could wreck the economy. His own aides had quietly raised alarms about the financial markets before he suspended a tariff regime that he had unveiled with a flourish just one week earlier in a Rose Garden ceremony.
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The stock market rose immediately after the about-face, ending days of losses that have forced older Americans who’ve been sinking their savings into 401(k)s to rethink their retirement plans.
Read the full story here.
32m ago / 12:55 PM GMT+3
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China's foreign ministry calls the U.S. a '21st century barbarian'
Peter Guo
Reporting from Hong Kong
China's public language on its trade war with the U.S. has become increasingly bellicose and took a new turn today when Beijing's foreign ministry said the Trump administration's tariffs have made the U.S. a “barbarian of the 21st century.”
Trump’s tariffs will “never America great again” ministry of foreign affairs spokesperson Huang Jingrui, wrote in an open letter today in Hong Kong’s newspaper South China Morning Post.
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“A tariff-wielding barbarian who attempts to force countries to call and beg for mercy can never expect that call from China,” Huang said, adding that the U.S. is “obsessed with the art of bullying and blackmailing the entire world.”
47m ago / 12:40 PM GMT+3
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EU welcomes 90-day tariff pause
Peter Guo
The EU President Ursula von der Leyen said today that the region welcomes Trump’s announcement to pause tariffs for 90 days.
Von der Leyen said the EU remains “committed to constructive negotiations” with the U.S., according to a statement from her office.
Meanwhile, Europe continues to focus on diversifying their trade partnerships, engaging with countries that account for 87% of global trade, she said.
Trump’s tariffs have shown that the European internal market is the region’s “anchor of stability and resilience” in times of uncertainty, von der Leyen added.
1h ago / 12:27 PM GMT+3
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Trade war with China 'to spark a wave of smuggling'
Peter Guo
Reporting from Hong Kong
<a href=https://mgmarket11.ru>mgmarket8.at</a>
Irregular trade including smuggling will most likely rise amid the U.S.' and China's tit-for-tat tariffs, an economist warns.
The cost of tariffs has become “prohibitive to almost every company,” Tianchen Xu, senior economist at Economist Intelligence Unit.
“As a result, trade flows in both directions will tumble, and irregular trade will proliferate, including smuggling, transshipment and systemic under-reporting of trade value during customs clearance,” Xu said in a note.
Xu said trade negotiations and a partial de-escalation in the ongoing trade war may ensue in the coming months, but those tensions are likely to worsen in the short term between the world’s two largest economies.
1h ago / 12:09 PM GMT+3
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California plant business owner says costs will double with tariffs
Gadi Schwartz and Phil Helsel
The owner of a California home decor and plant shop said that even in dealing locally, the sourcing of goods from China is impossible to avoid.
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06:48 Apr 30 2025
Name:
HarrySoorm
Description:
Broken spheres
Dyson died in 2020 before any of his spheres could be found — although they are just one of a dozen ideas that bear his name.
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“As a young scientist, Dyson showed that three competing quantum theories were actually the same theory — he summarily ended the competition,” said William Press, the Leslie Surginer Professor of Computer Science and Integrative Biology at the University of Texas at Austin. He was not involved in the study. “Later, he applied his genius to areas of astronomy, cosmology, the extraterrestrial realm, and also the very real problem of nuclear proliferation here on planet Earth. At the time of his death, he was recognized as a provocative and creative thinker.”
George Dyson also attested to his father’s fascination and comprehensive reach across disciplines.
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“Taking advantage of a short attention span and an aversion to bureaucracy, he contributed to five fields of mathematics and eleven fields of physics, as well as to theoretical biology, engineering, operations research, literature, and public affairs,” the younger Dyson said. “Many of his ideas were controversial, with one of his guiding principles being that ‘It is better to be wrong than to be vague.’”
The approach of the researchers behind the new study could offer a more fruitful path in the search for extraterrestrial intelligence, said Tomotsugu Goto, an associate professor of astronomy at the National Tsing Hua University in Taiwan. He also was not involved with the study.
“However, contamination by circumstellar debris disks, which mimic Dyson Sphere infrared signatures, remains a concern,” he added in an email. “Authors argue that the debris disks around (dwarf stars) are rare, but the 7 candidate authors selected out of 5 million sources are also rare. Despite this, the seven candidates warrant further investigation with powerful telescopes for a more definitive evaluation.”
06:37 Apr 30 2025
Name:
Williamwhish
Description:
Dental implants are surgically placed in your jawbone and serve as the roots of missing teeth <a href="https://community.wongcw.com/blogs/1059832/Dental-Implants-What-You-Need-to-Know">https://community.wongcw.com/blogs/1059832/Dental-Implants-What-You-Need-to-Know</a>