From HBO life is worth losing.
Get the latest international news and world events from around the world.
ChatGPT won’t take over from humans for now, says Infosys founder
Murthy said he will use ChatGPT as an instrument, an assistant in producing better quality of work and output — but not as a human replacement.
“At the end of the day, I am a great believer in the theory that the human mind is the most powerful imagination, machine. There is nothing that can beat the human mind.”
Infosys is the world’s third most valuable IT services brand with a brand value of $13 billion, trailing behind Accenture and Tata Consultancy Services, according to brand valuation firm Brand Finance’s Global 500 2023 report.
Comment les activités spatiales peuvent-elles évoluer vers plus de durabilité ?
Remark: This article is from The Conversation France written by Victor DOS SANTOS PAULINO & Nonthapat PULSIRI (V&N) — Experts from Toulouse Business School and The SIRIUS Chair (France)
Lorsque nous parlons d’espace, nous pensons aux étoiles que nous voyons la nuit ou à de bons films de science-fiction. Or, l’espace comprend également tous les satellites et engins qui sont lancés depuis la Terre. Dans certains engins spatiaux, il y a des astronautes, comme l’Américaine Christina Koch ou le Français Thomas Pesquet, qui voyagent pendant plusieurs jours ou mois pour de nombreuses missions.
Pendant ce temps, plus de 8 000 satellites non habités opèrent sur les orbites terrestres pour améliorer la vie quotidienne. Par exemple, les satellites de communication contribuent à améliorer l’accès à Internet dans les zones blanches, les satellites d’observation sont essentiels pour les prévisions météorologiques et les satellites de navigation (GPS) sont indispensables pour les besoins de transport actuels et futurs tels que les véhicules autonomes.
Les progrès dans le secteur spatial offrent aujourd’hui de nouvelles opportunités dans la mise en orbite de constellations de milliers de satellites (par exemple, la flotte Starlink lancée par SpaceX, la société de l’homme d’affaires américain Elon Musk) ou encore dans l’exploitation minière spatiale et le tourisme spatial. Certains pays (dont la France et les États-Unis) ont par ailleurs annoncé que soutenir leur écosystème spatial constituait une priorité pour dynamiser l’économie.
Researchers in Japan develop a new ultra-high-density sulfonic acid polymer electrolyte membrane for fuel cells
In a project commissioned by the New Energy and Industrial Technology Development Organization (NEDO), researchers at Nagoya University in Japan have developed poly(styrenesulfonic acid)-based PEMs with a high density of sulfonic acid groups.
One of the key components of environmentally friendly polymer electrolyte fuel cells is a polymer electrolyte membrane (PEM). It generates electrical energy through a reaction between hydrogen and oxygen gases. Examples of practical fuel cells include fuel cell vehicles (FCVs) and fuel cell combined heat and power (CHP) systems.
The best-known PEM is a membrane based on a perfluorosulfonic acid polymer, such as Nafion, which was developed by DuPont in the 1960s. It has a good proton conductivity of 0.1 S/cm at 70–90 °C under humidified conditions. Under these conditions, protons can be released from sulfonic acid groups.
Simulations with a machine learning model predict a new phase of solid hydrogen
Hydrogen, the most abundant element in the universe, is found everywhere from the dust filling most of outer space to the cores of stars to many substances here on Earth. This would be reason enough to study hydrogen, but its individual atoms are also the simplest of any element with just one proton and one electron. For David Ceperley, a professor of physics at the University of Illinois Urbana-Champaign, this makes hydrogen the natural starting point for formulating and testing theories of matter.
Ceperley, also a member of the Illinois Quantum Information Science and Technology Center, uses computer simulations to study how hydrogen atoms interact and combine to form different phases of matter like solids, liquids, and gases. However, a true understanding of these phenomena requires quantum mechanics, and quantum mechanical simulations are costly. To simplify the task, Ceperley and his collaborators developed a machine learning technique that allows quantum mechanical simulations to be performed with an unprecedented number of atoms. They reported in Physical Review Letters that their method found a new kind of high-pressure solid hydrogen that past theory and experiments missed.
“Machine learning turned out to teach us a great deal,” Ceperley said. “We had been seeing signs of new behavior in our previous simulations, but we didn’t trust them because we could only accommodate small numbers of atoms. With our machine learning model, we could take full advantage of the most accurate methods and see what’s really going on.”
Astronomers Discover Heaviest Element Ever Found in ‘Ultra-Hot Jupiter’ Exoplanet
The gas giant, which orbits a bright A-type star 556 light-years away from Earth, has an equilibrium temperature of 2,250 K and a size of about 1.51 Jupiter radii. The researchers found rubidium and samarium in the planet’s atmosphere for the first time, alongside ions of titanium and barium.
The discovery of rubidium and samarium is particularly notable. With an atomic number of 62, samarium is the heaviest element ever detected in an exoplanet’s atmosphere.
How deep brain stimulation is helping people with severe depression
Deep brain stimulation (DBS) is an experimental treatment strategy which uses an implanted device to help patients with severe depression who have reached a point where no other treatment works.
But despite her involvement in the DBS collaboration, which involves neuroscientists, neurosurgeons, electrophysiologists, engineers and computer scientists, neurologist Helen Mayberg does not see it as a long-term solution.
“I hope I live long enough to see that people won’t require a hole in their brain and a device implanted in this way,” she says. “I often have a nightmare with my tombstone that kind of reads like, what did she think she was doing?”
