Here is the daily technology #threadcast for 4/21/24. The goal is to make this a technology "reddit".
Drop all question, comments, and articles relating to #technology and the future. The goal is make it a technology center.
Here is the daily technology #threadcast for 4/21/24. The goal is to make this a technology "reddit".
Drop all question, comments, and articles relating to #technology and the future. The goal is make it a technology center.
!summarize #technology
!summarize #technology #space
!summarize #technology #rgdigital
!summarize #technology
3D cooling method uses boiling water to supercharge electronics with 7x performance boost
While effective, this method is limited by water’s sensible heat.
The Japanese researchers combined microchannel geometry with capillary structures to set a performance record, paving the way for advances in electronics and sustainable tech.
Moore’s Law has fueled decades of progress in electronics, with chips becoming ever smaller and more powerful. But this miniaturization comes at a cost—more heat in less space, pushing current cooling methods to their limits. To tackle this growing issue, researchers from the Institute of Industrial Science at The University of Tokyo have developed a new cooling technique for microchips, a breakthrough published in Cell Reports Physical Science.
As chips shrink, Tokyo researchers rethink cooling
One of the most effective cooling methods today uses microchannels embedded in the chip to circulate water and remove heat. But this approach is limited by water’s sensible heat—the energy it can absorb before boiling. In comparison, the latent heat released during boiling is roughly seven times higher, offering far greater cooling potential.
While effective, this method is limited by water’s sensible heat—the energy it takes to raise the temperature without a phase change. By comparison, the latent heat absorbed during boiling or evaporation is about seven times higher, enabling much greater cooling potential.
According to the researchers, exploiting the latent heat of water enables two-phase cooling, leading to a significant improvement in heat dissipation efficiency.
!summarize #savannah #bananas #milb #baseball #stadiums #promotions
!summarize #spacex #ev #charing #technology #tesla
!summarize #google #deepmind #ai
!summarize #ai #openai #google #agi
!summarize #ai #60minutes #deepmind #google
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The use and range of traditional lightning rods are limited, especially in difficult-to-equip places like wind turbines and outdoor event spaces. NTT has been investigating drone-based lightning induction, a cutting-edge technique that uses drones to monitor thunderclouds, intentionally trigger lightning, and safely reroute it, in order to remedy this issue.
In a recent field demonstration under natural thundercloud conditions, NTT, in collaboration with Fujitsu, successfully tested this concept. The experiment featured two key technologies: lightning induction using electric field fluctuations to attract lightning to a drone, and a specially designed lightning-resistant cage that prevents drone failure even under direct strikes.
In the hilly area of Hamada City, Shimane Prefecture, Japan, a first successful drone-based lightning-triggering experiment was carried out between December 2024 and January 2025. To safeguard vital infrastructure, the test sought to create technologies that can safely control and actively trigger lightning.
The researchers employed a ground-based field mill to track the strength of the electric field during the experiment. A drone with a lightning-resistant cage was flown to 984 feet (300 meters) on December 13, 2024, when an oncoming thundercloud increased the electric field. The drone was wired to a ground switch, and when the switch was turned on, an abrupt shift in the electric field caused a lightning strike.
It was the first documented instance of a drone actively causing lightning, according to NTT. A lightning-resistant cage and a technique for initiating electric field fluctuations were two significant advancements that the experiment showcased. Even after a strike, the drone remained stable in mid-air thanks to the metal cage’s ability to distribute magnetic fields and redirect lightning current away from delicate drone components.
!summarize #tesla #earnings #stock
The aim is to create novel materials that are lightweight, electrically conductive, and remarkably stable in extremely high-temperature conditions.
“The materials can be made into almost any shape or size, making them valuable for many industrial applications such as energy storage, electric systems, and nanodevices,” the press release noted.
Another experiment on ISS will explore cellular life. In collaboration with NASA JPL, and Teledyne Brown Engineering, Portland State University will test the ELVIS holographic microscope on the ISS.
This advanced system will provide detailed 3D views of cells, allowing scientists to study how life adapts to extreme conditions. The research could significantly contribute to the search for life beyond Earth.
Pentagon chief leaked US war plans in 2nd Signal chat to family members: Reports
The Pentagon faces mounting criticism over Hegseth’s handling of sensitive military operations.
In the days leading up to the U.S. military strikes on Yemen in March, Defense Secretary Pete Hegseth reportedly shared sensitive attack details in a private Signal group chat. According to The New York Times, this group was created by Hegseth himself and included his wife, brother, and around a dozen others.
These developments have raised serious national security questions and cast doubt on Hegseth’s leadership. His decision to bypass secure communication protocols and involve family members in sensitive discussions is now under intense scrutiny.
Hegseth has yet to make a public statement addressing the reports. As pressure mounts in Washington, the incident may have far-reaching consequences for how future defense communications are handled—especially during high-stakes international operations.
Pope Francis, the second oldest Pope in Vatican history, has died, the Vatican confirmed. He was 88.
Born Jorge Mario Bergoglio in Buenos Aires, Argentina, on Dec. 17, 1936, Pope Francis had long had lung issues, the most recent being double pneumonia that required his hospitalization on Feb. 14 for about five weeks, starting Feb. 14.
His death was announced from the Vatican early Monday by Cardinal Kevin Farrell, an American, who is now the Vatican's de facto administrator.
This makes them particularly attractive for the emerging for the autonomous energy supply of microsensors and other tiny electronic components.
In order to make the materials more efficient, at the same time heat transport via the lattice vibrations must be suppressed and the mobility of the electrons increased – a hurdle that has often hindered research until now.
Powder of an alloy of iron, vanadium, tantalum and aluminum used
Published in the journal Nature Communications, the study demonstrates that by incorporating chemically and structurally distinct archetypal topological insulator Bi1−xSbx at the grain boundaries, charge, and heat transport can be decoupled, “resulting in a reduction of κL, and simultaneously, in an unexpected increase of μW.”
Previous research has shown the promise of two-phase cooling but also pointed out challenges, mainly in managing vapor bubble flow after heating. Therefore, to maximize heat transfer efficiency, factors like microchannel design, two-phase flow control, and flow resistance must be optimized.
Using 3D microfluidic channels for improved efficiency
This research presents an innovative water-cooling system that incorporates 3D microfluidic channels, capillary structures, and a manifold distribution layer. The team designed and tested various capillary geometries to evaluate their performance under different conditions.
Results showed that both the microchannel geometry, which directs coolant flow, and the manifold channels, which regulate coolant distribution, impact the system’s thermal and hydraulic performance.
Pope Francis, born Jorge Mario Bergoglio, has faced accusations of communist sympathies due to his critiques of capitalism and emphasis on social justice, but there is no evidence he has ever been a communist or formally tied to communist organizations. His views stem from Catholic social teaching and his experiences in Argentina, shaped by Peronism and liberation theology, not Marxism. Below is a detailed examination of the claims and context surrounding his alleged ties to communism
Nio’s founder, chairman, and CEO, William Li, expressed the company’s long-term aspirations for its new Firefly brand.
“In the long run, we would like Firefly to reach about 10 percent of Nio Inc’s total sales, as Mini accounts for about 10 percent of BMW’s sales,” Li was quoted by CnEV Post.
Battery swap to reduce range anxiety
The Nio Firefly is equipped with a 42.1 kWh Lithium-Iron-Phosphate (LFP) battery pack, which provides a claimed range of 420 kilometers (260 miles). This range is sufficient for zipping around the city and even longer day trips.
The Firefly can handle DC fast charging up to 100 kW, which is decent for a battery of this size.
However, Nio has a real advantage, especially in China: its battery swap technology.
#askleo
Who were the leaders of Argentina from 1960 through today?
#askleo
Give me a list of the presidents or heads of state for the country of Argentina since 1960.
World-first: Japan developing drone system to make power from lightning strikes
Tests showed the cage had 98 percent coverage and withstood 150kA—five times stronger than typical natural lightning.
Japanese firms have developed the world’s first lightning-triggering and guidance system using flying drones, according to reports translated from Japanese sources.
Developed by The Nippon Telegraph and Telephone Corporation (NTT), these drones have successfully induced and guided lightning using electric field fluctuations. Engineers designed a lightning-resistant cage to protect the drones during strikes.
Following successful trials earlier this year, there are plans to deploy networks of these drones across cities and around critical infrastructure to help prevent lightning-related damage and improve public safety.
“In the future, this result is expected to contribute to research into the generation of lightning, which has yet to be fully understood, and to the reduction of lightning damage to cities and people,” said the firm in a statement.
Guided lightning defense
A significant natural danger, lightning is thought to cause between $702 million to $1.4 billion (¥100 and ¥200 billion) in damage in Japan each year. The risk still exists despite current defenses, such as lightning protection for vital infrastructure like the communications facilities of NTT Group.
NTT is responding by developing its lightning protection technology with the goal of completely preventing lightning strikes on important infrastructure and metropolitan areas.
ISS to test lifelike robot materials, nanomaterials for cancer in microgravity
These investigations hold the potential to improve life on Earth and contribute to a thriving economy in space.
The International Space Station (ISS) astronauts are all set to conduct more exciting research in microgravity.
The uncrewed SpaceX Dragon spacecraft is on way to deliver 6,700 pounds of supplies, including scientific investigations, to ISS.
The launch aboard Falcon 9 rocket took place from Launch Complex 39A at NASA’s Kennedy Space Center in Florida at 4:15 a.m. EDT on Monday. This marks SpaceX’s 32nd Commercial Resupply Services mission to the orbital laboratory.
Onboard this mission are investigations into nanomaterials with the potential to treat osteoarthritis, the development of novel materials for lifelike robotics, and more.
These investigations hold the potential to improve life on Earth and contribute to a thriving economy in space.
Research on nanomaterial for cancer
One of the scientific investigations comes from the University of Connecticut and Eascra Biotech, supported by Axiom Space.
They aim to leverage the microgravity conditions to improve the production of injectable nanomaterials.
On Earth, factors like gravity can negatively impact the quality and delivery of these nanomaterials. Microgravity allows for the creation of larger, more uniform structures with better integrity. This research aims to determine optimal formulations and methods for cost-efficient production in space.
Low-cost material conducts electricity with higher stability, 100% efficiency increase
Good thermoelectric materials are those that conduct electricity well on the one hand, but transport heat as poorly as possible.
A team scientists have succeeded in producing new and efficient thermoelectric materials that could compete with state-of-the-art materials, offering greater stability and lower cost.
Thermoelectric materials enable the direct conversion of heat into electrical energy. The latest innovation offers new properties through a new combination of materials.
Researchers have highlighted that good thermoelectric materials are those that conduct electricity well on the one hand, but transport heat as poorly as possible on the other – an apparent contradiction, as good electrical conductors are generally also good conductors of heat.
Scientists try to suppress heat transport through lattice vibrations
“In solid matter, heat is transferred both by mobile charge carriers and by vibrations of the atoms in the crystal lattice. In thermoelectric materials, we mainly try to suppress heat transport through the lattice vibrations, as they do not contribute to energy conversion,” said first author Fabian Garmroudi, who obtained his doctorate at TU Wien.