mapping – Lifeboat News: The Blog https://lifeboat.com/blog Safeguarding Humanity Mon, 22 Jan 2024 04:22:44 +0000 en-US hourly 1 https://wordpress.org/?v=6.4.2 Dark energy is one of the biggest puzzles in science and we’re now a step closer to understanding it https://lifeboat.com/blog/2024/01/dark-energy-is-one-of-the-biggest-puzzles-in-science-and-were-now-a-step-closer-to-understanding-it https://lifeboat.com/blog/2024/01/dark-energy-is-one-of-the-biggest-puzzles-in-science-and-were-now-a-step-closer-to-understanding-it#respond Mon, 22 Jan 2024 04:22:44 +0000 https://lifeboat.com/blog/2024/01/dark-energy-is-one-of-the-biggest-puzzles-in-science-and-were-now-a-step-closer-to-understanding-it

Over ten years ago, the Dark Energy Survey (DES) began mapping the universe to find evidence that could help us understand the nature of the mysterious phenomenon known as dark energy. I’m one of more than 100 contributing scientists that have helped produce the final DES measurement, which has just been released at the 243rd American Astronomical Society meeting in New Orleans.

Dark energy is estimated to make up nearly 70% of the , yet we still don’t understand what it is. While its nature remains mysterious, the impact of dark energy is felt on grand scales. Its primary effect is to drive the accelerating expansion of the universe.

The announcement in New Orleans may take us closer to a better understanding of this form of energy. Among other things, it gives us the opportunity to test our observations against an idea called the cosmological constant that was introduced by Albert Einstein in 1917 as a way of counteracting the effects of gravity in his equations to achieve a universe that was neither expanding nor contracting. Einstein later removed it from his calculations.

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The New Story of the Milky Way’s Surprisingly Turbulent Past https://lifeboat.com/blog/2024/01/the-new-story-of-the-milky-ways-surprisingly-turbulent-past https://lifeboat.com/blog/2024/01/the-new-story-of-the-milky-ways-surprisingly-turbulent-past#respond Sat, 20 Jan 2024 10:38:08 +0000 https://lifeboat.com/blog/2024/01/the-new-story-of-the-milky-ways-surprisingly-turbulent-past

The latest star maps are rewriting the story of our Milky Way, revealing a much more tumultuous history than astronomers suspected.

By Ann Finkbeiner

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How satellite images and AI could help fight spatial apartheid in South Africa https://lifeboat.com/blog/2024/01/how-satellite-images-and-ai-could-help-fight-spatial-apartheid-in-south-africa https://lifeboat.com/blog/2024/01/how-satellite-images-and-ai-could-help-fight-spatial-apartheid-in-south-africa#respond Fri, 19 Jan 2024 22:46:03 +0000 https://lifeboat.com/blog/2024/01/how-satellite-images-and-ai-could-help-fight-spatial-apartheid-in-south-africa

Townships get little by way of public resources compared with rich suburbs. By mapping the problem, researchers like Raesetje Sefala hope to reverse it.

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Cerebellar_atlases/Nettekoven_2023 at develop · DiedrichsenLab/cerebellar_atlases https://lifeboat.com/blog/2024/01/cerebellar_atlases-nettekoven_2023-at-develop-%c2%b7-diedrichsenlab-cerebellar_atlases https://lifeboat.com/blog/2024/01/cerebellar_atlases-nettekoven_2023-at-develop-%c2%b7-diedrichsenlab-cerebellar_atlases#respond Fri, 19 Jan 2024 00:23:30 +0000 https://lifeboat.com/blog/2024/01/cerebellar_atlases-nettekoven_2023-at-develop-%c2%b7-diedrichsenlab-cerebellar_atlases

A hierarchical #Atlas of the human #cerebellum for functional precision #mapping


Contribute to DiedrichsenLab/cerebellar_atlases development by creating an account on GitHub.

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Astronomers Have Mapped the Milky Way’s Magnetic Fields in 3D https://lifeboat.com/blog/2024/01/astronomers-have-mapped-the-milky-ways-magnetic-fields-in-3d https://lifeboat.com/blog/2024/01/astronomers-have-mapped-the-milky-ways-magnetic-fields-in-3d#respond Thu, 18 Jan 2024 16:25:00 +0000 https://lifeboat.com/blog/2024/01/astronomers-have-mapped-the-milky-ways-magnetic-fields-in-3d

Researchers have developed the first 3D maps of magnetic field structures within a spiral arm of the Milky Way. While we’ve seen smaller-scale magnetic fields before, this is much larger, showing the overall magnetic pattern in our galaxy. These fields are incredibly weak, about 100,000 times weaker than the Earth’s magnetic field, but they impact the galaxy, strongly influencing star-forming regions.

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Architecture All Access: Neuromorphic Computing Part 2 https://lifeboat.com/blog/2024/01/architecture-all-access-neuromorphic-computing-part-2 https://lifeboat.com/blog/2024/01/architecture-all-access-neuromorphic-computing-part-2#respond Tue, 16 Jan 2024 21:32:26 +0000 https://lifeboat.com/blog/2024/01/architecture-all-access-neuromorphic-computing-part-2

In Neuromorphic Computing Part 2, we dive deeper into mapping neuromorphic concepts into chips built from silicon. With the state of modern neuroscience and chip design, the tools the industry is working with we’re working with are simply too different from biology. Mike Davies, Senior Principal Engineer and Director of Intel’s Neuromorphic Computing Lab, explains the process and challenge of creating a chip that can replicate some of the form and functions in biological neural networks.

Mike’s leadership in this specialized field allows him to share the latest insights from the promising future in neuromorphic computing here at Intel. Let’s explore nature’s circuit design of over a billion years of evolution and today’s CMOS semiconductor manufacturing technology supporting incredible computing efficiency, speed and intelligence.

Architecture All Access Season 2 is a master class technology series, featuring Senior Intel Technical Leaders taking an educational approach in explaining the historical impact and future innovations in their technical domains. Here at Intel, our mission is to create world-changing technology that improves the life of every person on earth. If you would like to learn more about AI, Wi-Fi, Ethernet and Neuromorphic Computing, subscribe and hit the bell to get instant notifications of new episodes.

Jump to Chapters:
0:00 Welcome to Neuromorphic Computing.
0:30 How to architect a chip that behaves like a brain.
1:29 Advantages of CMOS semiconductor manufacturing technology.
2:18 Objectives in our design toolbox.
2:36 Sparse distributed asynchronous communication.
4:51 Reaching the level of efficiency and density of the brain.
6:34 Loihi 2 a fully digital chip implemented in a standard CMOS process.
6:57 Asynchronous vs Synchronous.
7:54 Function of the core’s memory.
8:13 Spikes and Table Lookups.
9:24 Loihi learning process.
9:45 Learning rules, input and the network.
10:12 The challenge of architecture and programming today.
10:45 Recent publications to read.

Architecture all access season 2 playlist — • architecture all access season 2

Intel Wireless Technology — https://intel.com/wireless.

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Attention, intention, and retention in frontoparietal cortex https://lifeboat.com/blog/2024/01/attention-intention-and-retention-in-frontoparietal-cortex https://lifeboat.com/blog/2024/01/attention-intention-and-retention-in-frontoparietal-cortex#respond Tue, 16 Jan 2024 01:23:04 +0000 https://lifeboat.com/blog/2024/01/attention-intention-and-retention-in-frontoparietal-cortex

Cognitive neuroscientist Clayton Curtis describes an elegant experiment that leads us to ask: Does the brain honor the distinction implied in most textbooks between spatial attention, motor control, and spatial working memory?

For more info/content, please visit: https://postlab.psych.wisc.edu/cog-ne

Relevant paper:
Jerde, T. A., Merriam, E. P., Riggall, A. C., Hedges, J. H., \& Curtis, C. E. (2012). Prioritized maps of space in human frontoparietal cortex. Journal of Neuroscience, 32(48), 17382–17390.

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Laser Mapping Technology Reveals 2,500-Year–Old Cities Hidden in the Amazon https://lifeboat.com/blog/2024/01/laser-mapping-technology-reveals-2500-year-old-cities-hidden-in-the-amazon https://lifeboat.com/blog/2024/01/laser-mapping-technology-reveals-2500-year-old-cities-hidden-in-the-amazon#respond Sat, 13 Jan 2024 20:23:40 +0000 https://lifeboat.com/blog/2024/01/laser-mapping-technology-reveals-2500-year-old-cities-hidden-in-the-amazon

THe cities are over 1,000 years older than any other known Amazonian society.

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Most Precise Measure of Dark Energy Confirms Universe Won’t Tear Apart https://lifeboat.com/blog/2024/01/most-precise-measure-of-dark-energy-confirms-universe-wont-tear-apart https://lifeboat.com/blog/2024/01/most-precise-measure-of-dark-energy-confirms-universe-wont-tear-apart#respond Thu, 11 Jan 2024 01:49:00 +0000 https://lifeboat.com/blog/2024/01/most-precise-measure-of-dark-energy-confirms-universe-wont-tear-apart

Over ten years ago, the Dark Energy Survey (DES) began mapping the Universe to find evidence that could help us understand the nature of the mysterious phenomenon known as dark energy.

I’m one of more than 100 contributing scientists that have helped produce the final DES measurement, which has just been released at the 243rd American Astronomical Society meeting in New Orleans.

Dark energy is estimated to make up nearly 70 percent of the observable Universe, yet we still don’t understand what it is. While its nature remains mysterious, the impact of dark energy is felt on grand scales. Its primary effect is to drive the accelerating expansion of the Universe.

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Angle-Preserving Transformations Give Rigidity Transitions a New Twist https://lifeboat.com/blog/2024/01/angle-preserving-transformations-give-rigidity-transitions-a-new-twist https://lifeboat.com/blog/2024/01/angle-preserving-transformations-give-rigidity-transitions-a-new-twist#respond Fri, 05 Jan 2024 07:27:08 +0000 https://lifeboat.com/blog/2024/01/angle-preserving-transformations-give-rigidity-transitions-a-new-twist

New theoretical work explores the onset of rigidity in granular materials and other disordered systems by mapping out the edges of rigid regions.

Phase transitions are a common part of our daily lives. Many of them are intuitive: water transforms into steam or ice, birds spontaneously form a flock, and random piles of marbles suddenly jam together into a solid. Possibly the most basic phase transition, however, is a more abstract version called connectivity percolation (CP). In systems displaying CP, individual units such as persons or polymers are mapped by their contacts—or connectors—to a graph consisting of nodes and edges. As the number of connectors increases, the system switches from being disconnected (filled with small, separate clusters) to being connected (spanned by one large cluster). This connectivity phase transition is commonly seen in polymer solutions and pandemic spreading, but researchers have also used the percolation perspective to describe the onset of mechanical rigidity in disordered systems, otherwise known as rigidity percolation (RP).

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