Scientists Hopfield and Hinton Win 2024 Nobel Prize in Physics

A screen shows the laureates of the 2024 Nobel Prize in Physics, US physicist John J Hopfield and Canadian-British computer scientist and cognitive psychologist Geoffrey E Hinton during the announcement by the Royal Swedish Academy of Sciences in Stockholm, Sweden on October 8, 2024. (AFP)
A screen shows the laureates of the 2024 Nobel Prize in Physics, US physicist John J Hopfield and Canadian-British computer scientist and cognitive psychologist Geoffrey E Hinton during the announcement by the Royal Swedish Academy of Sciences in Stockholm, Sweden on October 8, 2024. (AFP)
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Scientists Hopfield and Hinton Win 2024 Nobel Prize in Physics

A screen shows the laureates of the 2024 Nobel Prize in Physics, US physicist John J Hopfield and Canadian-British computer scientist and cognitive psychologist Geoffrey E Hinton during the announcement by the Royal Swedish Academy of Sciences in Stockholm, Sweden on October 8, 2024. (AFP)
A screen shows the laureates of the 2024 Nobel Prize in Physics, US physicist John J Hopfield and Canadian-British computer scientist and cognitive psychologist Geoffrey E Hinton during the announcement by the Royal Swedish Academy of Sciences in Stockholm, Sweden on October 8, 2024. (AFP)

US scientist John Hopfield and British-Canadian colleague Geoffrey Hinton won the 2024 Nobel Prize in Physics for discoveries and inventions that laid the foundation for machine learning, the award-giving body said on Tuesday.

The award comes with a prize sum of 11 million Swedish crowns ($1.1 million), which is shared between the winners if there are several. The physics prize is awarded by the Royal Swedish Academy of Sciences.

"This year's two Nobel Laureates in physics have used tools from physics to develop methods that are the foundation of today's powerful machine learning," the award-giving body said in a statement.

"Machine learning based on artificial neural networks is currently revolutionizing science, engineering and daily life." Widely considered the most prestigious prize for physicists across the world, it was created, along with awards for achievements in science, literature and peace, in the will of Alfred Nobel.

The prizes have been awarded with a few interruptions since 1901, though the Nobel economics honor is a later addition in memory of the Swedish businessman and philanthropist, who had made a fortune from his invention of dynamite.

Outside the sometimes controversial choices for peace and literature, physics often makes the biggest splash among the prizes, with the list of past winners featuring scientific superstars such as Albert Einstein, Niels Bohr and Enrico Fermi.

Last year's physics prize was awarded to Pierre Agostini, Ferenc Krausz and Anne L'Huillier for their work in creating ultra-short pulses of light that can give a snapshot of changes within atoms, potentially improving the detection of diseases.

Physics is the second Nobel to be awarded this week, after US scientists Victor Ambros and Gary Ruvkun won the medicine prize for their discovery of microRNA and its role in gene regulation, shedding light on how cells specialize.



The World's Rivers Faced the Driest Year in Three Decades in 2023

People visit Silver Sands Beach at the Great Salt Lake in Salt Lake City, Utah, on September 10, 2024. (Photo by Frederic J. BROWN / AFP)
People visit Silver Sands Beach at the Great Salt Lake in Salt Lake City, Utah, on September 10, 2024. (Photo by Frederic J. BROWN / AFP)
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The World's Rivers Faced the Driest Year in Three Decades in 2023

People visit Silver Sands Beach at the Great Salt Lake in Salt Lake City, Utah, on September 10, 2024. (Photo by Frederic J. BROWN / AFP)
People visit Silver Sands Beach at the Great Salt Lake in Salt Lake City, Utah, on September 10, 2024. (Photo by Frederic J. BROWN / AFP)

The UN weather agency is reporting that 2023 was the driest year in more than three decades for the world's rivers, as the record-hot year underpinned a drying up of water flows and contributed to prolonged droughts in some places.
The World Meteorological Organization also says glaciers that feed rivers in many countries suffered the largest loss of mass in the last five decades, warning that ice melt can threaten long-term water security for millions of people globally.
“Water is the canary in the coalmine of climate change. We receive distress signals in the form of increasingly extreme rainfall, floods and droughts which wreak a heavy toll on lives, ecosystems and economies," said WMO Secretary-General Celeste Saulo, releasing the report on Monday.
She said rising temperatures had in part led the hydrological cycle to become “more erratic and unpredictable” in ways that can produce “either too much or too little water” through both droughts and floods.
The weather agency, citing figures from UN Water, says some 3.6 billion people face inadequate access to water for at least one month a year — and that figure is expected to rise to 5 billion by 2050.
The world faced the hottest year on record in 2023, and the summer of this year was also the hottest summer ever — raising warning signs for a possible new annual record in 2024.
“In the (last) 33 years of data, we had never such a large area around the world which was under such dry conditions,” said Stefan Uhlenbrook, director of hydrology, water and cryosphere at WMO.
WMO called for improvements in data collection and sharing to help clear up the real picture for water resources and help countries and communities take action in response.
The report said the southern United States, Central America and South American countries Argentina, Brazil, Peru and Uruguay faced widespread drought conditions and “the lowest water levels ever observed in Amazon and in Lake Titicaca,” on the border between Peru and Bolivia.