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Novel method for investigating pore geometry in rocks

In a fusion of mathematics and earth science, researchers have proposed a novel method for characterizing pore geometry in rock, based on persistence diagram analysis and a newly proposed parameter, the distance parameter H. The method represents heterogeneity and differences in rock type more effectively than the conventional method based on velocity distribution, without requiring costly numerical flow simulations, and the results are relatively stable with small changes in pore space. more...

Block play could improve your child's math skills, executive functioning

Semi-structured block play among preschool-age children has the potential to improve two skills - mathematics and executive functioning - critical to kindergarten readiness, according a new study. more...

Using mathematical approaches to optimally manage public debt

Large government debt negatively impacts long-term economic growth and the debt-to-gross domestic product (GDP) ratio is an important indicator of a country's financial leverage. Financial mathematicians propose a mathematical model that helps optimize and control the debt-to-GDP ratio. more...

Options to optimize profit in broadband satellite constellations

Several large telecommunications companies have proposed plans to provide global broadband services by launching hundreds and even thousands of satellites into orbit. Although broadband for everyone sounds like a great idea, it also carries great financial risk, resulting in bankruptcy for some who've tried it. Recent research suggests a more cost-effective strategy using regional coverage and staged deployment. more...

New tools reveal prelude to chaos

Engineers have developed tools that mathematically describe the kinetics in a system right before it dissolves into randomness. more...

Beyond superstition to general causality: AI nutcracker for real-world problems

Real-world problems in economics and public health can be notoriously hard nuts to find causes for. Often, multiple causes are suspected but large datasets with time-sequenced data are not available. Previous models could not reliably analyze these challenges. Now researchers have tested the first Artificial Intelligence model to identify and rank many causes in real-world problems without time-sequenced data, using a multi-nodal causal structure and Directed Acyclic Graphs. more...

New theory finds 'traffic jams' in jet stream cause abnormal weather patterns

A study offers an explanation for a mysterious and sometimes deadly weather pattern in which the jet stream, the global air currents that circle the Earth, stalls out over a region. Much like highways, the jet stream has a capacity, researchers said, and when it's exceeded, blockages form that are remarkably similar to traffic jams -- and climate forecasters can use the same math to model them both. more...

 

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Digital Darts

Digital Darts

An online darts game for one or two players requiring skill, strategy and mental arithmetic. It provides an enjoyable way to practise adding and subtracting two and three digit numbers.

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