The growing presence of Russian submarines off the coast of the United States has sparked Cold War comparisons from military observers and a retired NATO admiral.
Russian President Vladimir Putin has been set on expanding Russia’s underwater capabilities. Over the past several years, Moscow has been producing a series of submarines that have the capability to reach the most critical targets in the U.S. or continental Europe.
China kicked off three days of military drills and ‘combat readiness patrols’ around the island on Saturday, just days after the Taiwanese president met the U.S. House speaker.
This could be some sorta civilization moving itself in space.
The Hubble Space Telescope has spotted a runaway supermassive black hole racing through space followed by a tail of infant stars 200,000 light-years long.
Tom is a writer in London with a Master’s degree in Journalism whose editorial work covers anything from health and the environment to technology and archaeology.
Unique object appeared to be scratches on Hubble images A “runaway” black hole shooting through the universe is like nothing ever seen, scientists have said. The object first appeared as “scratches” on images from NASA’s Hubble Space Telescope. But scientists now believe that it is a black hole, thrown out of its home galaxy and tearing through the cosmos, leaving a trail of stars in its wake.
That’s interesting. Some will be scared and this will cause contention. I’m interested in if it will be available in the Google Play store.
Just a few weeks ago, OpenAI announced and launched GPT 4, the latest version of its Large Language Model (LLM). Now, there’s a possibility that the next major iteration, GPT 5, might be released by the end of 2023. This information comes from a BGR report, based on tweets by developer Siqi Chen.
However, OpenAI has not yet talked about GPT 5 in public. As a result, we don’t know what changes and improvements to expect. Chen’s initial tweet suggested that OpenAI expects GPT 5 to achieve Artificial General Intelligence (AGI). If this is true, it means that the chatbot would reach human-like understanding and intelligence.
Year 2020 face_with_colon_three
Australian company has developed a one megawatt electric motor and it’s used for of them to power this all-electric dragster.
Posted in robotics/AI
The alignment problem from a deep learning perspective.
Dropbox is a free service that lets you bring your photos, docs, and videos anywhere and share them easily. Never email yourself a file again!
Erasing data perfectly and attaining the lowest possible temperature may appear unrelated, but they share a strong connection. Researchers at TU Wien have discovered a quantum formulation for the third law of thermodynamics.
The temperature of absolute zero.
Absolute zero is the theoretical lowest temperature on the thermodynamic temperature scale. At this temperature, all atoms of an object are at rest and the object does not emit or absorb energy. The internationally agreed-upon value for this temperature is −273.15 °C (−459.67 °F; 0.00 K).
The ability to store and retrieve learned information over prolonged periods of time is an essential and intriguing property of the brain. Insight into the neurobiological mechanisms that underlie memory consolidation is of utmost importance for our understanding of memory persistence and how this is affected in memory disorders. Recent evidence indicates that a given memory is encoded by sparsely distributed neurons that become highly activated during learning, so-called engram cells. Research by us and others confirms the persistent nature of cortical engram cells by showing that these neurons are required for memory expression up to at least 1 month after they were activated during learning. Strengthened synaptic connectivity between engram cells is thought to ensure reactivation of the engram cell network during retrieval. However, given the continuous integration of new information into existing neuronal circuits and the relatively rapid turnover rate of synaptic proteins, it is unclear whether a lasting learning-induced increase in synaptic connectivity is mediated by stable synapses or by continuous dynamic turnover of synapses of the engram cell network. Here, we first discuss evidence for the persistence of engram cells and memory-relevant adaptations in synaptic plasticity, and then propose models of synaptic adaptations and molecular mechanisms that may support memory persistence through the maintenance of enhanced synaptic connectivity within an engram cell network.
Our memories define who we are, help us make decisions and guide our behavior. The ability to effectively encode, store and retrieve information is therefore an essential feature of life. Although the recollection of most experiences fades with time, certain memories are retained for many years or even a lifetime. How the brain is able to process and persistently store learned information has been a topic of intense research for a long time and great progress has been made in recent years toward a better understanding of the mechanisms underlying memory persistence.
Memory formation is initiated by the integration of external and interoceptive sensory stimuli in neuronal circuits, forming a cohesive representation of a specific event. Subsequently, the neurons involved are thought to undergo physical changes that enable retrieval of the learned information. The physical representation of experience-driven changes in the brain is collectively referred to as a memory engram (Box 1), a term that gained popularity in recent years (Josselyn et al., 2015), but that was first introduced by the German scientist Richard Semon in the early 20th century (Semon, 1911). Learning-induced changes do not occur globally or randomly within memory-relevant brain regions. Instead, accumulating evidence indicates that sparse ensembles of neurons become highly activated during learning and act as a substrate for the storage of a memory engram (Whitaker and Hope, 2018; Josselyn and Tonegawa, 2020).
