The Halo Drive, using a laser to gain fuel free relativistic propulsion from a black hole. By shooting a laser close to the event horizon of a black hole, Dr. David Kipping’s conceptual star drive could lead to traveling across the milky way from one black hole to another as well as techno signatures from advanced civilizations that might already be using this intergalactic relay system.
The halo drive: • the halo drive.
Cool Worlds — YouTube: / @coolworldslab.
Cool Worlds:
Introducing the Qinglong humanoid robot with open-source AI, plus Tesla’s Optimus Gen 2 is shown for the first time ever in public. Meta HOT3D dataset is bringing robotic hands closer than ever before, plus China’s KLING is now available on a web app.
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Advanced Robotics, Drones, 3D Printers, \& AI Tech HERE: https://bit.ly/3wNxDyA
AI news timestamps:
0:00 Qinglong humanoid robot.
0:33 Specifications.
1:08 Performance.
1:33 AI development.
1:48 Future roadmap.
2:31 Tesla Optimus Gen 2
2:49 Key improvements.
3:23 Roadmap.
3:53 Meta HOT3D
5:10 KLING text to video web app.
5:44 Meta 3D Gen.
6:10 2 AI models.
7:10 EMU AI
#ai #robot #technology
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Update: My mistake in the video, Elsevier and the list of other orgs I mentioned are \.
The concept of traveling beyond the speed of light has been given theoretical grounding through the Alcubierre warp drive. Proposed by physicist Miguel Alcubierre in the 1990s, this warp drive involves creating a space-time bubble around a spacecraft. By contracting space in front of the spacecraft and expanding it behind, the ship can ride a wave of space-time, seemingly achieving faster-than-light travel without breaking the cosmic speed limit. In essence, it’s the space around the ship that moves, not the ship itself, allowing for rapid traversal of vast distances.
The theoretical feasibility of the Alcubierre warp drive hinges on generating an immense amount of energy, currently beyond our technological capabilities. The ship’s warp core, similar to a nuclear reactor, would utilize matter and antimatter collisions to produce the necessary energy for warping space. While this concept was initially fictional, Alcubierre proposed a solution to Einstein’s Field Equation that aligned with the principles of the Star Trek Warp Drive.
NASA has recently developed a model of Alcubierre Warp Drive. Ongoing developments and models inspired by the Alcubierre Drive suggest that interstellar travel might not be confined to science fiction in the distant future.
The Alcubierre Warp Drive presents an intriguing approach to faster-than-light travel by manipulating spacetime. Unlike traditional propulsion, this theoretical model involves compressing spacetime in front of a spacecraft and expanding it behind, creating a \.
With their ability to generate human-like language and complete a variety of tasks, generative AI has the potential to revolutionise the way we communicate, learn and work. But what other doors will this technology open for us, and how can we harness it to make great leaps in technology innovation? Have we finally done it? Have we cracked AI?
Join Professor Michael Wooldridge for a fascinating discussion on the possibilities and challenges of generative AI models, and their potential impact on societies of the future.
Michael Wooldridge is Director of Foundational AI Research and Turing AI World-Leading Researcher Fellow at The Alan Turing Institute. His work focuses on multi-agent systems and developing techniques for understanding the dynamics of multi-agent systems. His research draws on ideas from game theory, logic, computational complexity, and agent-based modelling. He has been an AI researcher for more than 30 years and has published over 400 scientific articles on the subject.
This lecture is part of a series of events — How AI broke the internet — that explores the various angles of large-language models and generative AI in the public eye.
Consciousness is comprised of arousal (i.e., wakefulness) and awareness. Substantial progress has been made in mapping the cortical networks that modulate awareness in the human brain, but knowledge about the subcortical networks that sustain arousal is lacking. We integrated data from ex vivo diffusion MRI, immunohistochemistry, and in vivo 7 Tesla functional MRI to map the connectivity of a subcortical arousal network that we postulate sustains wakefulness in the resting, conscious human brain, analogous to the cortical default mode network (DMN) that is believed to sustain self-awareness. We identified nodes of the proposed default ascending arousal network (dAAN) in the brainstem, hypothalamus, thalamus, and basal forebrain by correlating ex vivo diffusion MRI with immunohistochemistry in three human brain specimens from neurologically normal individuals scanned at 600–750 µm resolution. We performed deterministic and probabilistic tractography analyses of the diffusion MRI data to map dAAN intra-network connections and dAAN-DMN internetwork connections. Using a newly developed network-based autopsy of the human brain that integrates ex vivo MRI and histopathology, we identified projection, association, and commissural pathways linking dAAN nodes with one another and with cortical DMN nodes, providing a structural architecture for the integration of arousal and awareness in human consciousness. We release the ex vivo diffusion MRI data, corresponding immunohistochemistry data, network-based autopsy methods, and a new brainstem dAAN atlas to support efforts to map the connectivity of human consciousness.
One sentence summary We performed ex vivo diffusion MRI, immunohistochemistry, and in vivo 7 Tesla functional MRI to map brainstem connections that sustain wakefulness in human consciousness.
BF has a financial interest in CorticoMetrics, a company whose medical pursuits focus on brain imaging and measurement technologies. BF’s interests were reviewed and are managed by Massachusetts General Hospital and Mass General Brigham HealthCare in accordance with their conflict-of-interest policies.
Is consciousness a scientific problem to be solved? Or a philosophical problem that will remain a mystery? What do scientists who study the brain think? And why do they think the way they do? These leading brain scientists share their intimate ideas about how the brain generates consciousness.
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Arnold B. Scheibel was a Professor of Neurobiology and Psychiatry and former Director of the Brain Research Institute (BRI) at UCLA.
🧠 Dive into the fascinating world of the human brain with our latest video, ‘Unlocking the…
Learn more about the Cognitive Science Student Association and the California Cognitive Science Conference at https://cssa.berkeley.edu.
Amy Arnsten — Yale University.
Abstract.
The recently evolved prefrontal cortex (PFC) subserves many of our highest-order cognitive functions, generating and sustaining the mental representations that underlie working memory, abstract reasoning, and top-down control of thought, action, and emotion. Due to the pioneering research of Patricia Goldman-Rakic, we have learned much about the neural basis underlying the ability of the dorsolateral prefrontal cortex (dlPFC) to generate mental representations, where microcircuits in deep layer III have extensive recurrent excitatory connections to maintain neuronal firing in the absence of sensory stimulation, while GABAergic interneurons provide lateral inhibition to refine the contents of working memory. However, these dlPFC circuits are also tremendously dependent on arousal state, with a narrow inverted U response to levels of acetylcholine, dopamine and norepinephrine. Even quite mild uncontrollable stress increases the release of dopamine and norepinephrine in the PFC, which rapidly impairs PFC functioning by 1) stimulating D1 and alpha-1-receptors, respectively, 2) these, in turn, activate feedforward calcium-cAMP signaling within spines, which then 3) open nearby potassium channels to disconnect PFC networks and take the PFC “off-line”. With chronic stress exposure, there is actual atrophy of PFC dendrites and spines. Understanding the neural events that weaken vs. strengthen PFC connectivity and function has led to the development of treatments for patients with stress-related PFC dysfunction, e.g. guanfacine and prazosin. This knowledge is also helping to illuminate the etiology of cognitive disorders, as genetic insults in schizophrenia often increase the activity of these stress signaling pathways, and the molecules that regulate the stress signaling pathways are lost with advancing age, leading to tau pathology as seen in Alzheimer’s disease.
