* . *
  • About
  • Advertise
  • Privacy & Policy
  • Contact
Monday, June 23, 2025
Earth-News
  • Home
  • Business
  • Entertainment
    Netflix unveils Dallas immersive venue for fans of hit shows like ‘Squid Game,’ ‘Stranger Things’ – Houston Chronicle

    Step Inside Netflix’s New Dallas Immersive Experience Featuring Hits Like ‘Squid Game’ and ‘Stranger Things

    ‘Puttin’ on the Ritz’: Civic Players bring ‘Young Frankenstein’ to life – Yahoo

    Civic Players Deliver a Hilarious and Unforgettable Performance of ‘Young Frankenstein

    ‘Wheel of Fortune’: Amputee Wins $60,000 After Breaking Incredible ‘Curse’ – Hastings Tribune

    Wheel of Fortune’ Amputee Breaks Incredible ‘Curse’ to Win $60,000!

    North Star Sports & Entertainment Network: Coming soon – KTTC News

    North Star Sports & Entertainment Network: Coming soon – KTTC News

    Safety concerns in Deep Ellum create apprehension as the entertainment district gains visitors – CBS News

    Safety Concerns Surge Amid Deep Ellum’s Booming Popularity and Growing Crowds

    Elisabeth Moss’ ‘Handmaid’s Tale’ Emmy chances, by the numbers – Yahoo

    Elisabeth Moss’ ‘Handmaid’s Tale’ Emmy chances, by the numbers – Yahoo

  • General
  • Health
  • News

    Cracking the Code: Why China’s Economic Challenges Aren’t Shaking Markets, Unlike America’s” – Bloomberg

    Trump’s Narrow Window to Spread the Truth About Harris

    Trump’s Narrow Window to Spread the Truth About Harris

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Trending Tags

    • Trump Inauguration
    • United Stated
    • White House
    • Market Stories
    • Election Results
  • Science
  • Sports
  • Technology
    Technology Convergence Report 2025 – The World Economic Forum

    Technology Convergence Report 2025 – The World Economic Forum

    How AI can help make cities work better for residents – MIT Technology Review

    How AI can help make cities work better for residents – MIT Technology Review

    Tech Champions with Leo Bletnitsky of Healthy Technology Solutions – Buzz Media Group

    Meet Tech Champion Leo Bletnitsky of Healthy Technology Solutions

    Crypto’s true revolution is about humanity, not technology – Cointelegraph

    Crypto’s Real Revolution: Transforming Humanity Beyond Technology

    $1 Billion Problem: New Technology Could Save Your Daily Cup of Coffee – SciTechDaily

    The $1 Billion Challenge: How New Technology Could Rescue Your Daily Cup of Coffee

    Canada’s construction industry gets serious about investing in technology as pressure mounts to do more with less – Yahoo Finance

    Canada’s Construction Industry Accelerates Tech Investments to Overcome Growing Challenges and Boost Efficiency

    Trending Tags

    • Nintendo Switch
    • CES 2017
    • Playstation 4 Pro
    • Mark Zuckerberg
No Result
View All Result
  • Home
  • Business
  • Entertainment
    Netflix unveils Dallas immersive venue for fans of hit shows like ‘Squid Game,’ ‘Stranger Things’ – Houston Chronicle

    Step Inside Netflix’s New Dallas Immersive Experience Featuring Hits Like ‘Squid Game’ and ‘Stranger Things

    ‘Puttin’ on the Ritz’: Civic Players bring ‘Young Frankenstein’ to life – Yahoo

    Civic Players Deliver a Hilarious and Unforgettable Performance of ‘Young Frankenstein

    ‘Wheel of Fortune’: Amputee Wins $60,000 After Breaking Incredible ‘Curse’ – Hastings Tribune

    Wheel of Fortune’ Amputee Breaks Incredible ‘Curse’ to Win $60,000!

    North Star Sports & Entertainment Network: Coming soon – KTTC News

    North Star Sports & Entertainment Network: Coming soon – KTTC News

    Safety concerns in Deep Ellum create apprehension as the entertainment district gains visitors – CBS News

    Safety Concerns Surge Amid Deep Ellum’s Booming Popularity and Growing Crowds

    Elisabeth Moss’ ‘Handmaid’s Tale’ Emmy chances, by the numbers – Yahoo

    Elisabeth Moss’ ‘Handmaid’s Tale’ Emmy chances, by the numbers – Yahoo

  • General
  • Health
  • News

    Cracking the Code: Why China’s Economic Challenges Aren’t Shaking Markets, Unlike America’s” – Bloomberg

    Trump’s Narrow Window to Spread the Truth About Harris

    Trump’s Narrow Window to Spread the Truth About Harris

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Trending Tags

    • Trump Inauguration
    • United Stated
    • White House
    • Market Stories
    • Election Results
  • Science
  • Sports
  • Technology
    Technology Convergence Report 2025 – The World Economic Forum

    Technology Convergence Report 2025 – The World Economic Forum

    How AI can help make cities work better for residents – MIT Technology Review

    How AI can help make cities work better for residents – MIT Technology Review

    Tech Champions with Leo Bletnitsky of Healthy Technology Solutions – Buzz Media Group

    Meet Tech Champion Leo Bletnitsky of Healthy Technology Solutions

    Crypto’s true revolution is about humanity, not technology – Cointelegraph

    Crypto’s Real Revolution: Transforming Humanity Beyond Technology

    $1 Billion Problem: New Technology Could Save Your Daily Cup of Coffee – SciTechDaily

    The $1 Billion Challenge: How New Technology Could Rescue Your Daily Cup of Coffee

    Canada’s construction industry gets serious about investing in technology as pressure mounts to do more with less – Yahoo Finance

    Canada’s Construction Industry Accelerates Tech Investments to Overcome Growing Challenges and Boost Efficiency

    Trending Tags

    • Nintendo Switch
    • CES 2017
    • Playstation 4 Pro
    • Mark Zuckerberg
No Result
View All Result
Earth-News
No Result
View All Result
Home Science

An Everyday Scientific Mystery: New Study Reveals Universal Secrets of Granular Matter

April 25, 2024
in Science
An Everyday Scientific Mystery: New Study Reveals Universal Secrets of Granular Matter
Share on FacebookShare on Twitter

Granular Matter

Examples of granular matter: multicolored plastic balls in a playground, gravel, sesame seeds and lentils (clockwise from top left). Credit: Images by Julia Kertesz, Martin Olsson, Jitender Kumar and Zyance respectively (source: Wikipedia).

Coffee beans in a jar and piles of rice or sand are examples of granular matter: materials composed of large numbers of macroscopic—rather than atomic scale—particles. Although granular matter is extremely familiar in everyday life, it represents an unexpected frontier in fundamental physics: Very little is understood about it.

In a new study published recently in the European Physical Journal E, Onuttom Narayan and Harsh Mathur, theoretical physicists at the University of California at Santa Cruz and Case Western Reserve University, respectively, shed some light on the propagation of sound through granular materials particularly close to what is called “the jamming transition.”

Practical Significance and Cultural Relevance

Understanding the properties of granular matter is important for many practical industrial applications. Remarkably, the problem of acoustic vibrations in granular matter has recently been a subject of discussion in pop culture: The newly released movie Dune has engendered a debate about whether sound can propagate through sand. (The answer: it can).

The strangeness of granular matter can be seen by contemplating a pile of rice. If you push a pile of rice gently, it appears to be solid. But if you pick up some rice and let it slip through your hand, it pours like a liquid. Thus, a pile of rice is neither solid nor liquid. It is a granular material that has to be understood on its own terms.

Understanding Jamming Transition

To understand the jamming transition, imagine pouring coffee beans through a funnel with a narrow nozzle. If the beans are poured slowly, they will flow through the nozzle, but if a lot of beans are poured into the funnel rapidly, the flow will jam. The jamming transition occurs as the flow rate is increased: The material passes abruptly from a flowing state to a jammed one.

In the laboratory, researchers typically study packs of polystyrene beads which are more amenable to experimentation than coffee beans. It is found that such bead packs undergo acoustic vibrations at a set of characteristic frequencies. This set of characteristic frequencies is called the spectrum of the bead pack. The spectrum varies from bead pack to bead pack, so the problem is to develop a statistical understanding of the kinds of spectra that might arise.

Theoretical Developments

Building on important prior work by many researchers, especially Yaroslav Beltukov (Ioffe Institute in Russia) and Giorgio Parisi (Sapienza University of Rome), Narayan and Mathur show there are certain statistical features of the spectra that are universal, while other features are non-universal. In this context, universal refers to features that would be shared by the vibrational frequencies of any sufficiently complex system; non-universal to features specific to jammed granular matter.

Narayan and Mathur show that the universal features of the spectra are described by random matrix theory, a branch of mathematics developed by nuclear physicists in the 1950s. The possibility that random matrix theory might be applicable to the vibrations of granular matter has important precursors. But in the new work, it is convincingly demonstrated for the first time that the spectra are described by a particular flavor of random matrix theory called the Laguerre ensemble.

Narayan and Mathur have also developed a model of the vibrations of jammed granular matter that is able to explain some of the non-universal features of the spectra. This model closely resembles a model developed by Narayan many years ago that was intended to solve a different important puzzle about granular matter: how stress is distributed in bead packs that are compressed.

Finding a unified description of different phenomena is a major goal of fundamental physics. An important goal for future work is to merge the two related models into a unified description of both stress distributions and vibrational spectra.

Granular matter is a reminder, Mathur and Narayan said, that one does not only have to look to the subatomic world or the universe on a cosmological scale to find important unsolved fundamental problems: Equally challenging and significant problems may be found in the everyday world around us.

Reference: “Vibrational spectrum of Granular packings with random matrices” by Onuttom Narayan, and Harsh Mathur, 12 March 2024, The European Physical Journal E.
DOI: 10.1140/epje/s10189-024-00414-x

>>> Read full article>>>
Copyright for syndicated content belongs to the linked Source : SciTechDaily – https://scitechdaily.com/an-everyday-scientific-mystery-new-study-reveals-universal-secrets-of-granular-matter/

Tags: EverydayscienceScientific
Previous Post

More Than 80 Feet Long – Newly Discovered Ichthyosaur May Be the Largest Marine Reptile Ever

Next Post

Unlocking Cosmic Mysteries: The Hunt for Water on Other Worlds

Universal Health Services, Inc.’s (NYSE:UHS) Intrinsic Value Is Potentially 34% Above Its Share Price – Yahoo Finance

Universal Health Services’ True Value Could Be 34% Higher Than Its Current Share Price

June 22, 2025
Millennials taking control in Prince George’s County politics – WTOP

Millennials taking control in Prince George’s County politics – WTOP

June 22, 2025
Technology Convergence Report 2025 – The World Economic Forum

Technology Convergence Report 2025 – The World Economic Forum

June 22, 2025
Kingsley Coman reveals desire to stay at Bayern Munich – Yahoo Sports

Kingsley Coman reveals desire to stay at Bayern Munich – Yahoo Sports

June 22, 2025
What role will Pope Leo XIV play in the future of Laudato Si’ ecological action? – National Catholic Reporter

What role will Pope Leo XIV play in the future of Laudato Si’ ecological action? – National Catholic Reporter

June 22, 2025
Opinion: What if MAGA Has a Point About Science? – Undark Magazine

What If MAGA Is Right About Science?

June 22, 2025
Are We Ready To Redefine the Second? Scientists Just Took a Major Step – SciTechDaily

Are We Ready to Redefine the Second? Scientists Achieve a Groundbreaking Breakthrough

June 22, 2025
What’s your ‘biological age’? And here’s how to lower it… – BreakingNews.ie

What’s your ‘biological age’? And here’s how to lower it… – BreakingNews.ie

June 22, 2025
Club World Cup trophy won’t make up for last season – Guardiola – BBC

Guardiola: Club World Cup Trophy Can’t Erase Last Season’s Disappointment

June 22, 2025
Russia’s Economy Minister Warns of Looming Recession – The Moscow Times

Russia’s Economy Minister Warns of an Imminent Recession

June 22, 2025

Categories

Archives

June 2025
MTWTFSS
 1
2345678
9101112131415
16171819202122
23242526272829
30 
« May    
Earth-News.info

The Earth News is an independent English-language daily published Website from all around the World News

Browse by Category

  • Business (20,132)
  • Ecology (697)
  • Economy (711)
  • Entertainment (21,611)
  • General (15,513)
  • Health (9,753)
  • Lifestyle (716)
  • News (22,149)
  • People (714)
  • Politics (719)
  • Science (15,930)
  • Sports (21,208)
  • Technology (15,697)
  • World (691)

Recent News

Universal Health Services, Inc.’s (NYSE:UHS) Intrinsic Value Is Potentially 34% Above Its Share Price – Yahoo Finance

Universal Health Services’ True Value Could Be 34% Higher Than Its Current Share Price

June 22, 2025
Millennials taking control in Prince George’s County politics – WTOP

Millennials taking control in Prince George’s County politics – WTOP

June 22, 2025
  • About
  • Advertise
  • Privacy & Policy
  • Contact

© 2023 earth-news.info

No Result
View All Result

© 2023 earth-news.info

No Result
View All Result

© 2023 earth-news.info

Go to mobile version