2025-03-23
Fine-Tuning Acoustic and Optical Waves in Metamaterials
This section refines dispersion curve fitting in micromorphic models by leveraging asymptotes and cut-offs. It reconciles Bloch-Floquet and continuum model limits, ensuring accurate wave propagation analysis. Despite precision challenges at...
How Unit Cell Size Affects Dispersion in Metamaterials
Table of Links Abstract and 1. Introduction 1.1 A Polyethylene-based metamaterial for acoustic control 2 Relaxed micromorphic modelling of finite-size metamaterials 2.1 Tetragonal Symmetry / Shape of elastic tensors (in...
Modeling Finite-Size Metamaterials with Relaxed Micromorphic Theory
This section explores relaxed micromorphic modeling for finite-size metamaterials, detailing tetragonal symmetry, elastic tensors in Voigt notation, and boundary conditions. It contrasts the classical Cauchy model with micromorphic approaches for...
New Material Design Approach Could Change How Sound Travels Through Space
This paper introduces an inertia-augmented micromorphic model that enhances wave propagation in metamaterials, enabling negative group velocity and improved acoustic control. It optimizes labyrinthine structures using polyethylene for effective low-frequency...
Wild Video Shows Humanoid Robot Preparing Elaborate Breakfast
Chinese robotics company Dobot has shown off its humanoid robot, dubbed Atom, preparing a lush Western breakfast. The video, titled "Rise and Shine with Atom, Your New Breakfast Buddy!" shows...
The Talk Show: ‘Podcasting Technology Cadence’
MG Siegler returns to the show to talk about the drama surrounding Siri and Apple Intelligence. Sponsored by: WorkOS: The modern identity platform for B2B SaaS — free up to...
Startup Working on Spacecraft Designed to Eat Dead Satellites for Fuel
British startup Magdrive claims to have developed a satellite that uses solid metal as a source of fuel. Its founder says it could one day be used to clean up...
Decentralized: Bob Wazneh’s Vision for AI, Blockchain, and Web3
Bob Wazneh, a Lebanese tech visionary, leverages AI, blockchain, and Web3 to build successful ventures like IBC Ventures and CJN. A resilient leader and philanthropist, he empowers startups, champions decentralized...
The HackerNoon Newsletter: Can AI Really Code? I Put DeepSeek to the Test (3/23/2025)
How are you, hacker? 🪐 What’s happening in tech today, March 23, 2025? The HackerNoon Newsletter brings the HackerNoon homepage straight to your inbox. On this day, Mir Falls From...
Scientists Create Sound That Can Curve Through a Crowd and Reach Just One Person
Readers, consider, for your listening pleasure, the next frontier in sonic miracles: so-called "audible enclaves," where only you can hear a sound without disturbing anyone else in open space —...
How Fraction AI is Democratizing AI Ownership for the Masses
Fraction AI’s Shashank Yadav shares insights into how his platform is decentralizing AI model training and ownership, making specialized AI accessible to all.
James Webb Space Telescope Captures Images of Individual Planets in Distant Star System
Astronomers using the mighty James Webb Space Telescope have captured direct images of four planets in a star system 130 light years from Earth — an astonishingly eagle-eyed feat of...
An Important Force of the Universe Appears to Be Changing, Scientists Find
Dark energy, the mysterious force that makes up 70 percent of everything in the universe, was hypothesized to explain why the expansion of the universe was accelerating. It has long...
Ripple in Time: Is XRP About to Go Parabolic in 2025?
While the wider cryptocurrency market is having to contend with high volatility and widespread uncertainty, XRP appears to be thriving.
Woman Gets Elective Full-Body MRI Scan, Finds Something Disturbing
A woman made a shocking discovery after getting a largely unprompted full-body MRI scan through the company Prenuvo. As People reports, Sarah Blackburn decided to get her spleen surgically removed...
Is Vibe Coding Agile or Merely a Hype?
TL; DR: Vibe Coding Vibe coding — using natural language to generate code through AI — represents a significant evolution in software development. It accelerates feedback cycles and democratizes programming...
Man Annoyed When ChatGPT Tells Users He Murdered His Children in Cold Blood
When it comes to the life of tech, generative AI is still just an infant. Though we've seen tons of AI hype, generative models are prone to wild hallucinations, like...
Trump Says Boeing Will Build a New Fighter Jet to Celebrate His Presidency: the "F-47"
Despite all the problems Boeing has had with its planes and spacecraft, president Donald Trump is now boasting about the manufacturer building the military a new fighter jet — and...
What Kids Are Actually Using Phones for in School Is So Pathetic That We May Need to Take a Quick Walk for Mental Health Purposes
Amid an increasing push around the country to ban cell phones and smart watches in schools, the main opponents to such measures are parents who are seemingly addicted to talking...
Finding Dropbox’s purpose
#startup #founder #ceo #findingpurpose #dropbox
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