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How many nuclear weapons the U.S. has might surprise you

Published Tue, 04 Mar 2025 13:04:52 GMT

The film “Oppenheimer” is in theaters. It’s the story of American scientist J. Robert Oppenheimer, who is credited as the father of the atomic bomb. Here’s a look at the history and current U.S. nuclear arsenal.The U.S. nuclear warhead arsenalEach point represents a nuclear weapon. According to the Union of Concerned Scientists, the U.S. nuclear arsenal includes over 3,800 weapons. About 1,740 deployed nuclear weapons are available for use.The circles below show the blast radius of the Hiroshima atomic bomb compared with a modern hydrogen bomb.The Hiroshima bomb, nicknamed Little Boy, was air burst 1,900 feet above the city to maximize destruction; it was later estimated to yield 15 kilotons. Two-thirds of the city area was destroyed. The population present at the time was estimated at 350,000, and 140,000 died by the explosion and its radiation.In the current U.S. nuclear arsenal, the W88 warheads deployed on Trident II submarine-launched missiles have an estimated yield of 475 kil...

What are the best seeds to save to grow my own fruits and vegetables

Published Tue, 04 Mar 2025 13:04:52 GMT

Q. Has anyone ever developed a list of vegetables and fruits that can or can’t be grown from seeds from the seeds of what you buy from the stores to eat? If so, what kinds of things do you have to do to have a better chance of getting them to grow? What about seeds and pits from store-bought fruit? Many gardeners like to save seeds for several reasons. As the quality and availability of commercially available seeds continue to decline while prices steadily increase, seed saving can be a worthwhile activity.With a bit of effort and a sense of adventure (a little more about that later), one can certainly save seeds for next year’s garden. As you’ve noticed, you can harvest viable seeds from store-bought sweet peppers and get quite a lot of them from a single pepper. Tomatoes, too, can yield plenty of viable seeds. We did this with a variety pack of “heirloom” tomatoes and the resulting plants produced fruit that was similar to the source fruit.Some fruits and vegetables are usually ha...

AI can help fight climate change and injustice — if it doesn’t make them worse, first

Published Tue, 04 Mar 2025 13:04:52 GMT

There’s hope for even the most ardent of climate change observers in the notion that if human innovation and technology got us into this mess, they can get us out of it. And few potential tools on the table are triggering quite the same blend of optimism and concern, promise and confusion, as artificial intelligence.AI, which involves sophisticated computer systems that can mimic some aspects of human cognition, has vast potential to help humans combat climate change and be better prepared to deal with its effects. Experts are working on ways to use machine learning to help us use resources more efficiently, for example, and to more accurately predict increasingly common extreme weather events.But before AI can be put to use in those ways, technology companies need to put the programs through intense training sessions and build or expand warehouse-scale data centers to support these systems. It takes lots of water and energy to keep densely packed computer servers for these systems ...

Popp’s first-half double powers Germany to a 6-0 rout of Morocco at the Women’s World Cup

Published Tue, 04 Mar 2025 13:04:52 GMT

Melbourne, Australia (AP) — Alexandra Popp scored twice in the first half and Germany added four more in the second in a 6-0 rout of a Morocco team on its debut at the Women’s World Cup on Monday.The margin of victory is the largest of the tournament so far as the two-time champions dominated throughout against Morocco, the first Arab and North African country to qualify for the tournamentPopp scored her 63rd and 64th international goals, moving to third on Germany’s all-time list. The Wolfsburg forward quickly made her mark on the tournament after missing out on the final of the 2022 European Championship against England because of injury. The second half featured two Morocco own-goals sandwiched between goals from Klara Bühl and Lea Schüller. KEY MOMENTSIn the 11th minute, Popp scored with a header off a cross from Kathrin Hendrich. She doubled her tally with another header in the 39th off Klara Bühl’s corner kick.Bühl scored the third goal with a right-foot strike just 23 s...

How to avoid online scams at career and dating sites

Published Tue, 04 Mar 2025 13:04:52 GMT

Far from the (relatively) innocent times of “Nigerian Prince” emails in the 1990s, online scams have grown both in volume and in prowess with technology. Do you know what to look out for?With the rise of artificial intelligence, cryptocurrency, and the use of social media for virtually every part of our life, law enforcement is overwhelmed with tracking the latest scams and warning the public on what to look out for.Historically, one of the biggest scams is the old get-rich-quick scheme, which begins with a promise of making a lot of money quickly, with little or no risk. While many people have grown savvy to offers like this showing up in their email spam box, many of the new schemes have been targeting people through social media and dating sites.To steal your loveChristine Todaro, an attorney at the Federal Trade Commission, said more people have been dropping their guard when encountering these threats in places like online dating sites where they may be more vulnera...

El Mando de las Naciones Unidas afirma que “se inició la conversación” con Corea del Norte sobre el soldado estadounidense

Published Tue, 04 Mar 2025 13:04:52 GMT

Seúl, Corea del Sur (CNN) — El subcomandante del Mando de las Naciones Unidas (UNC, por sus siglas en inglés) afirmó este lunes que se ha “iniciado una conversación” con Corea del Norte sobre el soldado del ejército estadounidense Travis King, que cruzó la frontera entre Corea del Norte y Corea del Sur la semana pasada en la zona desmilitarizada que separa ambas naciones.King, que se cree que es el primer soldado estadounidense que cruza a Corea del Norte desde 1982, tenía antecedentes por agresión, se enfrentaba a medidas disciplinarias por su conducta y tenía previsto regresar a EE.UU. el día antes del incidente.El general Andrew Harrison dijo que el caso de King sigue bajo investigación y no pudo dar más detalles sobre el soldado, que según el ejército estadounidense cruzó “voluntariamente y sin autorización” a Corea del Norte mientras realizaba una visita civil a la Zona de Seguridad Conjunta, un pequeño conjunto de edificios dentro de la zona desmi...

Gene therapy eyedrops restored a boy’s sight. Similar treatments could help millions

Published Tue, 04 Mar 2025 13:04:52 GMT

MIAMI (AP) — Dr. Alfonso Sabater pulled up two photos of Antonio Vento Carvajal’s eyes. One showed cloudy scars covering both eyeballs. The other, taken after months of gene therapy given through eyedrops, revealed no scarring on either eye.Antonio, who’s been legally blind for much of his 14 years, can see again.The teen was born with dystrophic epidermolysis bullosa, a rare genetic condition that causes blisters all over his body and in his eyes. But his skin improved when he joined a clinical trial to test the world’s first topical gene therapy. That gave Sabater an idea: What if it could be adapted for Antonio’s eyes? This insight not only helped Antonio, it also opened the door to similar therapies that could potentially treat millions of people with other eye diseases, including common ones.Antonio’s mom, Yunielkys “Yuni” Carvajal, teared up thinking about what Sabater did for her son.“He’s been there through everything,” she said in Spanish during a visit to the U...

ANÁLISIS | China y EE.UU. finalmente están dialogando de nuevo, pero ¿realmente pueden trabajar juntos?

Published Tue, 04 Mar 2025 13:04:52 GMT

(CNN) — Los tres altos funcionarios estadounidenses que viajaron a Beijing en las últimas semanas tenían una misión desafiante: estabilizar la relación bilateral más importante y polémica del mundo, con China.Ya sacudidas por la pandemia de covid-19, la guerra en Ucrania y las tensiones por el comercio, la tecnología y los derechos humanos, las relaciones entre Estados Unidos y China habían llegado a un mínimo histórico durante el año pasado, cuando Beijing cortó múltiples líneas de comunicación con Washington después de que la entonces presidenta de la Cámara de Representantes de Estados Unidos, Nancy Pelosi, visitara Taiwán en agosto pasado.Los esfuerzos para restablecer el diálogo después de una cumbre en noviembre entre el líder chino Xi Jinping y el presidente de EE.UU. Joe Biden en Bali luego se hundieron junto con un globo de vigilancia chino que fue derribado sobre EE.UU. a principios de este año, lo que provocó que las relaciones entraran en una espiral adicional.Las ...

Denver mayor activates emergency operations to combat homelessness

Published Tue, 04 Mar 2025 13:04:52 GMT

DENVER (KDVR) — Monday, Denver could take several steps to combat homelessness in the city.New Mayor Mike Johnston will activate the city's emergency operations center, following his emergency declaration over the homeless crisis. His team said all agencies will be involved at the operations center. Denver school board releases tapes in never-before-seen executive session In an effort to end homelessness, Johnston said city council members will tour 78 Denver neighborhoods and listen to feedback from residents. Johnston has a goal of getting 1,000 unhoused people in homes by the end of the year. The new emergency declaration could also help secure state-end federal resources, Johnston said.Monday night, Denver City Council could approve a $2.9 million contract with the Colorado Coalition for Homeless to operate a shelter at 3500 Park Ave. through 2025.

Colorado Parks and Wildlife ranger saves 3 in midnight rescue on Arkansas River

Published Tue, 04 Mar 2025 13:04:52 GMT

BUENA VISTA, Colo. (KXRM) — A Colorado Parks and Wildlife ranger is being recognized for his bravery when he rescued three people who flipped their raft on the Arkansas River. After 10 p.m. on July 6, CPW River Ranger Jeff Hammond received a call for help from the Chaffee County Sheriff’s Office. Hammond was told an off-duty commercial raft guide took two people on a private trip around 7:30 p.m. The three individuals never made it to the take-out spot at Hecla Junction. 4 juveniles in custody following armed robbery, police chase Authorities believed the raft had flipped in Zoom Flume in Browns Canyon. The guide was able to send a 911 text for help. Two others were unaccounted for. As midnight approached on July 6, 2023, Colorado Parks and Wildlife's Jeff Hammond, a river ranger with the Arkansas Headwaters Recreation Area, hung on the back of Chaffee County Search and Rescue all-terrain vehicle as part of a search for three people who were trapped in Browns Canyon after their r...