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Por sus avanzados estudios sobre los electrones, tres científicos ganan el Nobel de Física

Published Fri, 21 Feb 2025 10:28:34 GMT

Tres científicos ganaron el martes el premio Nobel de Física por estudiar los electrones de los átomos durante las fracciones de segundo más diminutas, un campo que algún día podría contribuir a mejorar los dispositivos electrónicos y los diagnósticos de enfermedades.El premio fue para Pierre Agostini, Ferenc Krausz y Anne L’Huillier por sus estudios sobre las partes diminutas de cada átomo que giran en torno a su núcleo, y que son fundamentales prácticamente para todo: la química, la física, nuestros cuerpos y nuestros aparatos.Los electrones se mueven tan deprisa que aislarlos se escapa de la capacidad humana, pero al observarlos en la fracción de tiempo más pequeña posible —un attosegundo, que corresponde a 0,000000000000000001 segundos—, los científicos ahora tienen una imagen “borrosa” de ellos que abre toda una nueva dimensión de la ciencia, según los expertos. El Nobel de Medicina reconoce a investigadores que abrieron camino a las vacunas contra el COVID-19 ...

Plan now for a dahlia garden next year, and don’t be intimidated

Published Fri, 21 Feb 2025 10:28:34 GMT

I’ve always adored dahlias – in other people’s gardens. As much as their cheerful appearance intrigued me, there was something about the planting, staking, digging up and storing-over-winter routine that intimidated me.But the longer I garden, the more I grow to appreciate their beauty and amenability.For one, they’re available in so many different sizes, colors and even flower shapes that it’s fair to say no two dahlia cultivars are alike. And the choices! There are anemone, cactus, peony, orchid and waterlily types; singles, doubles and even dinner plate dahlias as large as, well, dinner plates. With 42 recognized species and hundreds of hybrids, it’s impossible not to find at least one that will complement your garden.Dahlias bloom in cut-and-come-again fashion, which is to say you can pick bouquets to fill as many vases as you can, and the plants will continue to produce flowers from summer straight through fall.“Dahlias are actually simple to grow,” Lauren Sikorski, co-owner of...

Jornada 2 de la fase de grupos de la Champions League 2023/2024: partidos, fechas y horarios

Published Fri, 21 Feb 2025 10:28:34 GMT

(CNN Español) — La Champions League 2023-2024 sigue su curso esta semana con la jornada 2 de la competencia.En la primera fecha del torneo, 11 de los 32 equipos lograron la victoria: Bayern Munich, Arsenal, Napoli, Real Madrid, Salzburg, Feyenoord, PSG, Leipzig, Manchester City, Barcelona y Porto.Ahora, en la jornada 2, hay partidos de alto calibre, incluidos tres donde se enfrentarán equipos que buscarán seguir en la senda del triunfo para asegurarse el liderato de su grupo.Entre estos encuentros, destaca el Real Madrid vs. Napoli, que buscarán tomar la ventaja en el Grupo C del torneo. Este partido se vuelve más especial para el mediocampista alemán Toni Kroos, ya que, de ver minutos, sería su aparición número 100 como merengue en la Champions League.Los otros dos partidos que verán enfrentarse a ganadores de la jornada 1 son Leipzig vs. Manchester City y Porto vs. Barcelona.A continuación, toda la información sobre la jornada 2 de la Champions League.Julián Álvarez del Manc...

Lionel Messi’s status is still a mystery as Inter Miami prepares for an MLS match at Chicago

Published Fri, 21 Feb 2025 10:28:34 GMT

FORT LAUDERDALE, Fla. (AP) — Lionel Messi was on the practice field with Inter Miami on Tuesday, though it remains unclear when or if the seven-time Ballon d’Or winner will play with the team again this season.Inter Miami coach Gerardo “Tata” Martino declined to provide any timetable regarding Messi when he spoke with reporters before the practice session.The team — which is still trying to make Major League Soccer’s playoffs — plays at Chicago on Wednesday. Messi has been listed as day to day for much of the past month and barely has played in that span.The 36-year-old Messi has missed four of Inter Miami’s last five matches, plus another for Argentina in that span because of what was first called fatigue — by both his club and country — and has evolved from there. The only game he didn’t miss during that stretch was a 37-minute appearance against Toronto on Sept. 20, and he had to leave that match before halftime because of a hamstring issue.Messi made an appearance Mo...

Suella Braverman warns of ‘hurricane of mass migration’

Published Fri, 21 Feb 2025 10:28:34 GMT

LONDON — A migration “hurricane” is set to hit the U.K., Home Secretary Suella Braverman warned Tuesday, in a hardline speech warmly received by the Conservative Party faithful.In a wide-ranging speech at the governing Tories’ annual conference in Manchester, Braverman — seen as a standard-bearer of the right of the party and a likely future leadership contender — railed against immigration, identity politics and what she called the “luxury beliefs” of progressives.“The wind of change that carried my own parents across the globe in the 20th century was a mere gust compared to the hurricane that is coming,” Braverman — whose parents came to the U.K. from Kenya and Mauritius in the 1960s — said. In an eyebrow-raising trip to Washington last week, Braverman argued that “multiculturalism has failed,” and called for a new international approach to asylum claims. She has previously championed Britain’s plan to deport asylum seeke...

Ukraine accuses Chinese oil and gas firms of sponsoring Russia’s war

Published Fri, 21 Feb 2025 10:28:34 GMT

Three Chinese energy giants have been added to Ukraine’s list of businesses that are helping bankroll Russia’s full-scale invasion, in a move Kyiv says will have repercussions for their work in the West.In a statement Tuesday, Ukraine’s National Agency on Corruption Prevention confirmed that China National Offshore Oil Corporation (CNOOC Group), China Petrochemical Corporation (Sinopec Group) and China National Petroleum Corporation (CNPC) had all been listed as “international sponsors of war.”According to officials, the three state-run companies — China’s largest oil and gas businesses — are actively implementing joint projects alongside their Russian counterparts and help fund Moscow’s military and arms industries “by paying significant taxes” to the state.According to the agency, inclusion on the register will be flagged through compliance systems and discourage firms abroad from working with listed firms.While China has refus...

EU readies payout to Hungary to avoid Ukraine aid blockade

Published Fri, 21 Feb 2025 10:28:34 GMT

The European Commission is preparing to unfreeze around €13 billion in funds for Hungary to try to avoid Prime Minister Viktor Orbán vetoing EU aid for Ukraine, in a move likely to draw criticism from the European Parliament.The Commission needs the unanimous backing of the bloc’s 27 countries for an update to the EU’s long-term budget, which includes a €50 billion funding pot for Ukraine. Current EU aid for Kyiv runs out in December, and agreement by the 27 is all the more urgent given U.S. lawmakers’ decision to temporarily remove continued military funding and because of the election of Robert Fico in Slovakia, a pro-Russian critic of Europe’s Ukraine policy.Orbán has already said that Hungary won’t support further funding to Ukraine, citing concerns with Hungarian minorities in the country, demanding that a 2017 law on linguistic minorities be changed. The Commission hopes that releasing a large part of Hungary’s EU funds, which have been frozen since late ...

A ransom note, fingerprints and cell phone pings. How New York police tracked down a missing 9-year-old girl and the suspect in her disappearance

Published Fri, 21 Feb 2025 10:28:34 GMT

(CNN) — A ransom note dropped in the mailbox at the home of missing 9-year-old Charlotte Sena before dawn on Monday provided investigators an invaluable break in the case that ultimately led New York authorities to arrest a suspect and reunite the girl with her family after a frantic two-day search, state officials announced.Fingerprints left behind on the note were instrumental in identifying suspect Craig Nelson Ross, Jr., 47, and tracking him to a residence where law enforcement arrested him Monday evening and immediately found Charlotte hidden in a cabinet, Gov. Kathy Hochul announced in a news conference.The girl appeared “outwardly physically unharmed” and was taken to a hospital to be examined, the governor said.Ross was arraigned on a first-degree kidnapping charge and is being held and the Saratoga County Correctional Facility without bail, according to the New York State Police. Additional charges are expected, state police said in a news release.“...

Trio wins Nobel Prize in physics for split-second glimpse of superfast spinning world of electrons

Published Fri, 21 Feb 2025 10:28:34 GMT

By DAVID KEYTON, SETH BORENSTEIN and JOHN LEICESTER (Associated Press)STOCKHOLM (AP) — Three scientists won the Nobel Prize in physics on Tuesday for giving us the first split-second glimpse into the superfast world of spinning electrons, a field that could one day lead to better electronics or disease diagnoses.The award went to French-Swedish physicist Anne L’Huillier, French scientist Pierre Agostini and Hungarian-born Ferenc Krausz for their work with the tiny part of each atom that races around the center and that is fundamental to virtually everything: chemistry, physics, our bodies and our gadgets. Electrons move so fast that they have been out of reach of human efforts to isolate them, but by looking at the tiniest fraction of a second possible, scientists now have a “blurry” glimpse of them and that opens up whole new sciences, experts said.“The electrons are very fast, and the electrons are really the workforce in everywhere,” Nobe...

Foo Fighters coming to Petco Park

Published Fri, 21 Feb 2025 10:28:34 GMT

SAN DIEGO -- The Foo Fighters will be making a stop in San Diego next year.The 15-time Grammy Award winners will perform at Petco Park on Wednesday, Aug. 7, 2024. They'll be joined by special guests The Hives and Alex G.Tickets will go on sale to the general public on Friday at 10 a.m. Presales will start as early as Tuesday at 10 a.m.The band will then head north to play two shows at BMO Stadium in Los Angeles on Aug. 9 and 11. Check out all of the tour dates on the Foo Fighters' website. Foo Fighters confirms band will be ‘different’ after Taylor Hawkins death, but vows to see fans ‘soon’ In May, the band named Josh Freese as their new drummer after longtime drummer Taylor Hawkins died in Colombia in March of 2022. Hawkins was 50 years old.