All posts tagged: field

Scientists discover new planet-wide electric field that is fundamental to Earth’s atmosphere

Scientists discover new planet-wide electric field that is fundamental to Earth’s atmosphere

A groundbreaking discovery has revealed a new, planet-wide electric field that is as fundamental to Earth as gravity. Known as the ambipolar electric field, this invisible force begins 150 miles above the planet and plays a crucial role in lifting the sky and influencing polar winds, which in turn help drive weather patterns around the world. For years, scientists had only theorized about the existence of this field, but a team from NASA, including researchers from the University of Leicester, has finally measured it by sending a rocket directly into the field. This discovery adds a third energy field to Earth’s known forces, alongside gravity and the magnetic field, which protects the planet from cosmic radiation. Dr. Glyn Collinson, the principal investigator of the Endurance Mission at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, explains, “Whenever spacecraft have flown over the poles of the Earth, they have encountered this supersonic wind of particles called the polar wind. There had to be some invisible force driving this outflow, but until now, we lacked the technology …

The burgeoning field of brain mapping

The burgeoning field of brain mapping

The work I wrote about last year is part of the $3 billion federally funded Brain Research Through Advancing Innovative Neurotechnologies (BRAIN) Initiative, which launched in 2013. In this project, led by the Allen Institute for Brain Science, which has developed a number of brain atlases, researchers are working to develop a parts list detailing the vast array of cells in the human brain by sequencing single cells to look at gene expression. So far they’ve identified more than 3,000 types of brain cells, and they expect to find many more as they map more of the brain. The draft map was based on brain tissue from just two donors. In the coming years, the team will add samples from hundreds more. Mapping the cell types present in the brain seems like a straightforward task, but it’s not. The first stumbling block is deciding how to define a cell type. Seth Ament, a neuroscientist at the University of Maryland, likes to give his neuroscience graduate students a rundown of all the different ways brain cells …

Venezuela loses its last glacier as it shrinks down to an ice field | Glaciers

Venezuela loses its last glacier as it shrinks down to an ice field | Glaciers

Venezuela has lost its last remaining glacier after it shrunk so much that scientists reclassified it as an ice field. It is thought Venezuela is the first country to have lost all its glaciers in modern times. The country had been home to six glaciers in the Sierra Nevada de Mérida mountain range, which lies at about 5,000m above sea level. Five of the glaciers had disappeared by 2011, leaving just the Humboldt glacier, also known as La Corona, close to the country’s second highest mountain, Pico Humboldt. The Humboldt glacier was projected to last at least another decade, but scientists had been unable to monitor the site for a few years due to political turmoil in the country. Now assessments have found the glacier melted much faster than expected, and had shrunk to an area of less than 2 hectares. As a result, its classification was downgraded from glacier to ice field. “Other countries lost their glaciers several decades ago after the end of the little ice age but Venezuela is arguably the first …

Did Earth’s magnetic field trigger the emergence of complex life?

Did Earth’s magnetic field trigger the emergence of complex life?

The Ediacaran Period (635-541 million years ago) witnessed a pivotal transformation on Earth. (CREDIT: Creative Commons) The Ediacaran Period (635-541 million years ago) witnessed a pivotal transformation on Earth. Complex, multicellular organisms, some reaching impressive sizes, emerged during this era, paving the way for the Cambrian explosion of animal life. A new study by researchers at the University of Rochester sheds light on a potential environmental driver for this diversification – a dramatic weakening of Earth’s magnetic field. John Tarduno, lead author and Dean of Research at the University, highlights the Ediacaran fauna as a remarkable example. These early animals, some exceeding a meter in length, displayed mobility, suggesting a higher oxygen dependency compared to their predecessors. “Explanations for the Ediacaran fauna’s appearance have traditionally focused on genetic or ecological factors,” says Tarduno. “However, the temporal coincidence with the ultra-weak magnetic field compelled us to re-evaluate environmental influences, particularly atmospheric and oceanic oxygenation.” Earth’s Magnetic Shield: A Story from Below Deep within Earth’s core, roughly 1,800 miles down, lies a churning cauldron of liquid iron, …

An Old Abstract Field of Math Is Unlocking the Deep Complexity of Spacecraft Orbits

An Old Abstract Field of Math Is Unlocking the Deep Complexity of Spacecraft Orbits

The original version of this story appeared in Quanta Magazine. In October, a Falcon Heavy rocket is scheduled to launch from Cape Canaveral in Florida, carrying NASA’s Europa Clipper mission. The $5 billion mission is designed to find out if Europa, Jupiter’s fourth-largest moon, can support life. But because Europa is constantly bombarded by intense radiation created by Jupiter’s magnetic field, the Clipper spacecraft can’t orbit the moon itself. Instead, it will slide into an eccentric orbit around Jupiter and gather data by repeatedly swinging by Europa—53 times in total—before retreating from the worst of the radiation. Every time the spacecraft rounds Jupiter, its path will be slightly different, ensuring that it can take pictures and gather data from Europa’s poles to its equator. To plan convoluted tours like this one, trajectory planners use computer models that meticulously calculate the trajectory one step at a time. The planning takes hundreds of mission requirements into account, and it’s bolstered by decades of mathematical research into orbits and how to join them into complicated tours. Mathematicians are …

Panama voters to elect new president in crowded field of contenders | Elections News

Panama voters to elect new president in crowded field of contenders | Elections News

Eight contenders are vying for the position, with the protege of an ex-head of state convicted for corruption in the lead. Panamanians are heading to the polls for a general election to choose the nation’s next president and vote for hundreds of lawmakers and officials. Following weeks of campaign events, more than three million voters will decide who among eight candidates is best placed to fix Panama’s pressing economic problems, tackle corruption and restore the country’s reputation as an investment haven. No single party is forecast to win control of the legislature, where 885 seats are up for grabs. Polls are open for eight hours from 7am (12:00 GMT) for those eligible to vote. Jose Raul Mulino, a former minister who remained on the ticket after his running mate, popular ex-President Ricardo Martinelli (2009-14), was barred from running due to a money laundering conviction, is leading in opinion polls. Martinelli has dominated much of the race, campaigning for his former running mate from inside the Nicaraguan embassy, where he took refuge on February 8 after receiving …

Panama votes on crowded field of presidential contenders

Panama votes on crowded field of presidential contenders

Panamanians voted Sunday in presidential elections featuring a crowded field of eight candidates led by the protege of a former head of state convicted of corruption.  Issued on: 05/05/2024 – 07:58Modified: 05/05/2024 – 20:49 3 min The vote comes as Panama is grappling with deep-rooted corruption, a severe drought that has hobbled its economically critical Panama Canal, and a stream of US-bound migrants passing through its jungles. Lines formed outside polling stations early in the morning as eligible voters in the Central American country of 4.4 million people cast ballots for a new president, congress and local governments. Conservative lawyer Jose Raul Mulino, 64, is far ahead in opinion polls, with about 37 percent of voter support, according to the latest survey. But he was made to wait for a last-minute court decision Friday that finally validated his run. Of the seven other candidates, only three have approached 15 percent support. Trailing Mulino are social democrat ex-president Martin Torrijos and two center-right politicians: Romulo Roux, foreign minister under ex-president Ricardo Martinelli, and Ricardo Lombana, a …

Next SNP leader could be ‘crowned’, claim Tories – as John Swinney leads field | Politics News

Next SNP leader could be ‘crowned’, claim Tories – as John Swinney leads field | Politics News

The next leader of the SNP could be “crowned… with no contest”, the Scottish Conservatives have claimed, after Humza Yousaf stepped down from the role on Monday. Mr Yousaf – who has been leader and first minister of Scotland for just over a year – announced his resignation after his decision last week to cut power-sharing ties with the Scottish Green Party saw his leadership collapse. Now the focus is moving onto who will replace him with nominations now open until midday on Monday 6 June. Former deputy of the party John Swinney appears to be leading the pack. Politics live: Next Scottish FM tipped to be ‘crowned with no contest’ Mr Swinney – was was Nicola Sturgeon’s number two between 2014 and 2023 – has yet to confirm he is running for the leadership, telling Sky News he was “giving very careful consideration” to the decision. But senior figures have already given him their backing, with the SNP’s Westminster leader Stephen Flynn telling Sky News: “Serious times demand serious politics and serious people, and …

Death Toll From Drone Attack on Northern Iraq’s Khor Mor Gas Field Rises to 4, Advisor to Iraqi Kurdish PM Says

Death Toll From Drone Attack on Northern Iraq’s Khor Mor Gas Field Rises to 4, Advisor to Iraqi Kurdish PM Says

BAGHDAD (Reuters) – The death toll from a drone attack targeting the Khor Mor gas field in Iraq’s Kurdistan region on Friday rose to four expatriate workers, an advisor to the Iraqi Kurdish Prime Minister told Reuters. Production has also been suspended, the advisor to the Iraqi Kurdish Prime Minister and a senior Kurdish politician said. The four expatriate workers killed in the attack were from Yemen, a statement from the Kurdish Regional Government said. War in Israel and Gaza The drone attack on the Khor Mor gas field halted gas supplies to power plants resulting to a reduction of approximately 2,500 MW of electricity, a statement from Kurdistan’s electricity ministry said, indicating that operations at the field were suspended. The Pearl Consortium, United Arab Emirates energy firm Dana Gas (DANA.AD), and its affiliate, Crescent Petroleum, have the rights to exploit Khor Mor and Chemchemal, two of Iraq’s biggest gas fields. No group has claimed the responsibility for the attack. Photos You Should See – April 2024 (Reporting by Baghdad Newsroom; Editing by Toby Chopra) …

‘He made politics human’: Birkenhead mourns beloved MP Frank Field | Frank Field

‘He made politics human’: Birkenhead mourns beloved MP Frank Field | Frank Field

In a community cafe in Rock Ferry, one of the most deprived parts of Wirral, a landline phone connected directly to Frank Field’s Westminster office. It was an ever-present link to the area’s veteran MP – not that they needed it. Field, who represented Birkenhead for 40 years, could often be found mingling with residents in the Neo Community centre, where he would make himself at home, even down to washing the dishes. Volunteers knew they were in for a long chat if he said: “Shall we have a butty?” “He would just rock up all the time and sit in the middle of the cafe chatting to people,” said Ema Wilkes, the founder and chief executive of Neo Community, which distributes foods to thousands of local families each year thanks to the Feeding Birkenhead scheme set up by the former MP. “He made politics human. The most important thing he ever did was making politics be real and have a face.” Field, who died on Tuesday aged 81, is perhaps best known for his …