At any given time, there are roughly 100,000 missing people in the U.S. These hackers are using their skills in computer forensics to follow digital footprints.
Category: computing – Page 232
Graphene micro supercapacitors enhance flexibility and performance in wearable technology
The proliferation of wearable devices—from smart watches to AR glasses—necessitates ever-smaller on-board energy solutions that can deliver bursts of power while remaining unobtrusive.
Scientists leverage additive-free 3D printing process to construct exceptionally customizable and high-performing graphene-based micro-supercapacitors tailored for on-chip energy storage.
The quantum world: Dreams and delusions | Roger Penrose, Sabine Hossenfelder, Michio Kaku, and more!
Watch some of the biggest names in physics debate the mysteries of the quantum and its future, including Roger Penrose, Sabine Hossenfelder, Avshalom Elitzur, Michio Kaku, Suchitra Sebastian, Priya Natarajan, Joscha Bach, Erik Verlinde, Hilary Lawson and Bjørn Ekeberg.
From string theory to quantum gravity and quantum computers, the quantum discourse is all the buzz in physics and beyond. But what is possible and what mere fantasy? Can we bring together relativity and quantum mechanics? Will we ever find a unified theory to explain our universe?
00:00 Introduction.
00:45 Why is modern physics in crisis | Roger Penrose, Sabine Hossenfelder, Priya Natarajan, Erik Verlinde.
15:44 Are we at the cusp of a revolution? | Avshalom Elitzur, Michio Kaku, Joscha Bach, Bjørn Ekerberg.
28:06 What is quantum emergence? | Suchitra Sebastian.
#quantumemergence #relativity #quantumphysics.
Debates and talks featured:
The trouble with time (London, 2023)
https://iai.tv/video/the-trouble-with…
Mystery of emergence (London, 2023)
https://iai.tv/video/the-mystery-of-e…
Gravity and the universe (London, 2023)
https://iai.tv/video/gravity-and-the–…
Imagining the universe (Hay, 2023)
https://iai.tv/video/imagining-the-un…
The secrets of quantum emergence (Hay, 2023)
https://iai.tv/video/the-secrets-of-q…
The quantum hoax (Hay, 2023)
https://iai.tv/video/the-quantum-hoax…
Reality models and mayhem (Hay, 2023)
https://iai.tv/video/reality-models-a…
The quantum age (IAI Live, 2023)
https://iai.tv/video/the-quantum-age–…
The Institute of Art and Ideas features videos and articles from cutting edge thinkers discussing the ideas that are shaping the world, from metaphysics to string theory, technology to democracy, aesthetics to genetics. Subscribe today! https://iai.tv/subscribe?utm_source=Y…
For debates and talks: https://iai.tv.
Former AMD Radeon boss says NVIDIA is the GPU cartel
“They are the GPU cartel and they control all supply” Scott Herkelman, former AMD Radeon chief, has something to say about NVIDIA practices. Scott Herkelman & Jensen Huang, Source: AMD/NVIDIA According to the article on Wall Street Journal (via Tom’s Hardware), NVIDIA might be delaying data center GPU orders if customers start eyeing other options. […].
Light stimulates a new twist for synthetic chemistry
Molecules that are induced by light to rotate bulky groups around central bonds could be developed into photo-activated bioactive systems, molecular switches, and more.
Researchers at Hokkaido University, led by Assistant Professor Akira Katsuyama and Professor Satoshi Ichikawa at the Faculty of Pharmaceutical Sciences, have extended the toolkit of synthetic chemistry by making a new category of molecules that can be induced to undergo an internal rotation on interaction with light. Similar processes are believed to be important in some natural biological systems.
Synthetic versions might be exploited to perform photochemical switching functions in molecular computing and sensing technologies or in bioactive molecules, including drugs. Their report is pending in Nature Chemistry.
Beyond Moore’s Law: New Strategy for Developing Highly Versatile Electronics With Outstanding Performance Discovered
The miniaturization of electronic components, including transistors, has hit a plateau, presenting obstacles in the production of semiconductors. Nonetheless, a group of researchers, led by experts in materials science from the City University of Hong Kong (CityUHK), has unveiled a novel approach for creating highly versatile and high-performing electronics using transistors made of mixed-dimensional nanowires and nanoflakes. This breakthrough facilitates easier chip circuitry design and promotes the development of future electronic devices that are both flexible and energy-efficient.
In recent decades, as the continuous scaling of transistors and integrated circuits has started to reach physical and economic limits, fabricating semiconductor devices in a controllable and cost-effective manner has become challenging. Further scaling of transistor size increases current leakage and thus power dissipation. Complex wiring networks also have an adverse impact on power consumption.
Multivalued logic (MVL) has emerged as a promising technology for overcoming increasing power consumption. It transcends the limitations of conventional binary logic systems by greatly reducing the number of transistor components and their interconnections, enabling higher information density and lower power dissipation. Significant efforts have been devoted to constructing various multivalued logic devices, including anti-ambipolar transistors (AAT).
Beyond Binary: The Light-Driven Computing Revolution
Researchers develop a computer from an array of VCSELs with optical feedback.
In our data-driven era, solving complex problems efficiently is crucial. However, traditional computers often struggle with this task when dealing with a large number of interacting variables, leading to inefficiencies such as the von Neumann bottleneck. A new type of collective state computing has emerged to address this issue by mapping these optimization problems onto something called the Ising problem in magnetism.
Understanding the Ising Problem.