All posts tagged: waves

Gravitational waves may be responsible for dark matter in the universe

Gravitational waves may be responsible for dark matter in the universe

Published by Jenni Sidey

Dark matter is thought to exist everywhere, wrapping around galaxies and helping to shape the largest things in the universe. But nobody knows what it is made of. Now, a new theoretical study presents a surprisingly unique situation that could provide some of the missing puzzle pieces. Some of the dark matter may have originated from ancient gravitational waves. These waves travelled through the early universe before stars or galaxies had formed. This hypothesis is the product of collaboration between Professor Joachim Kopp from Johannes Gutenberg University Mainz and the PRISMA++ Cluster of Excellence. The work was also in collaboration with Dr. Azadeh Maleknejad from Swansea University. Furthermore, this work was published in Physical Review Letters. Visible matter makes up approximately 4% of our universe. It contains all the planets, stars, and living organisms which we can actually observe. Dark matter is estimated to represent around 23% of the universe. Although astronomers are aware of its existence due to its influence on the formation of galaxies and the structure of the universe as a whole, …

Ask Ethan: Do gravitational waves redshift like light does?

Ask Ethan: Do gravitational waves redshift like light does?

Published by Jenni Sidey

Here in our Universe, the light that gets emitted from objects isn’t necessarily the same as the light that arrives in either our eyes or our instruments. Not only are there many intervening effects that can alter a signal on the way — by interacting with fields, by passing through neutral and ionized matter, and by having to compete with sources of noise — but there are kinetic (motion-based) and gravitational (spacetime-based) effects that alter those signals while in transit as well. In particular, three main effects all can systematically shift light of any wavelength toward either redder or bluer wavelengths: the relative motion of the emitting source and the receiving observer, the changes in the gravitational field that the traveling signal experiences during its journey, and the effects of either expansion or contraction of the spacetime through which the signal travels. These three effects can lead to redshifts or blueshifts, depending on which direction they occur in, and it was long expected that they’d affect all waves, not just light waves, in a similar …

Large-scale waves are forming deep inside our Sun

Large-scale waves are forming deep inside our Sun

Published by Jenni Sidey

They move through the Sun like slow, immense swells, far below anything telescopes can see. For years, those depths have remained out of reach. Light cannot escape them, and direct measurements are impossible. Yet a new analysis suggests that the Sun’s interior is not silent. It carries large-scale waves shaped by magnetic forces, and those waves can be tracked from afar. Listening Instead of Looking The Sun does not sit still. Its surface and interior constantly tremble with subtle oscillations. Scientists have long used these vibrations to study its structure, a method often compared to seismology on Earth. Theoretical dispersion relations of magneto-Rossby modes and the associated magnetic fields. (CREDIT: Nature) This time, the focus shifted deeper. By carefully analyzing long-term data, the team identified a pattern that had gone unnoticed. The signals suggested the presence of global-scale waves moving through the Sun’s interior, influenced not just by rotation or heat, but by magnetism. “These waves give us a unique look at the Sun’s hidden magnetic system,” said Shravan Hanasoge, co-principal investigator at the center …

Candela’s new P-12 Business electric ferry is luxury soaring just above the waves

Candela’s new P-12 Business electric ferry is luxury soaring just above the waves

Published by skeptic

Swedish electric boat maker Candela has just unveiled its latest vessel, the P-12 Business, and it’s aiming to do something that’s long felt overdue: make getting to your destination on the water just as enjoyable as the destination itself. The new ferry builds on Candela’s already impressive P-12 platform, but adds a premium, business-class interior designed for high-end transport routes like resort transfers and urban commuter links. And if you’ve ever stepped off a smooth flight only to be tossed into a loud, wave-slamming speedboat to reach the last leg of your coastal adventure, you’ll immediately understand the problem Candela is trying to solve.  Flying above the water, not crashing through it What sets Candela apart from nearly every other electric boat company isn’t just that it uses batteries instead of fuel – it’s how it fundamentally rethinks how boats move through water. Instead of plowing through waves, the P-12 uses a computer-controlled hydrofoil system with underwater wings that lift the hull above the surface. Once up on foil, the boat essentially “flies” over the …

No-bake dessert recipes for heat waves

No-bake dessert recipes for heat waves

Published by Sam Flores

On cold or rainy days, baking beckons. But when you have a sweet tooth and it’s 90-something degrees outside, it’s time to dive into the cooling waters of no-bake desserts. During the recent heat wave I found myself unprepared, vigorously frothing ice, coffee and milk in a cocktail shaker to make a shakerato like I’ve enjoyed on sweltering days under the Umbrian sun, and whirling yogurt with crunchy sugar and ice for a plain lassi (like the more popular mango lassi, but without the mango), which I learned to love during my travels in India. As refreshing as those are, we can do better! The world of no-bake desserts is really as wide as you want it to be. There are mousses and puddings; milkshakes and malteds; sundaes and semifreddos; ice creams and sherbets; layered desserts, such as tiramisu and Nilla Wafer Banana Pudding; icebox cakes; and, with this clever no-bake cookie crumb pie crust, we even have access to the heavenly, homey indulgence that is icebox pie. Necessity being the mother of invention, no-bake …

The Suction Sex Toys Making Waves in 2026

The Suction Sex Toys Making Waves in 2026

Published by Sam Flores

We hope you love the products we recommend! All of them were independently selected by our editors. Just so you know, HuffPost UK may collect a share of sales or other compensation from the links on this page if you decide to shop from them. Oh, and FYI — prices are accurate and items in stock as of time of publication. Every now and then, something comes along that changes your life forever. It’s the start of any love story for the ages: girl meets sex toy, falls in love, and lives happily ever after. It could happen to anyone. Since the suction category took off, this has been more true than ever. These oral sex stimulators, which pulsate air waves against the clitoris, have taken the world by storm. Remember the hype for the Rose in 2020? The world shut down, and at the same time attitudes towards this petalled pulser blossomed, with people raving about their love for it on social media. But we’ve moved on to better things since then. At least, …

What brain waves reveal about people who can solve a Rubik’s Cube in seconds

What brain waves reveal about people who can solve a Rubik’s Cube in seconds

Published by José Betancourt

A recent study published in Experimental Brain Research provides evidence that elite Rubik’s Cube solvers use the exact same brain patterns to mentally plan their moves as they do to physically execute them. This research suggests that highly trained experts mentally solve the entire puzzle before even touching it. These findings help explain how the human brain adapts to handle complex tasks that require intense thinking and fast physical movement at the same time. Humans generally struggle to perform difficult mental calculations while executing precise physical movements. For example, a person texting on a smartphone tends to walk much slower because the brain cannot easily dedicate its full capacity to both thinking and moving at the exact same time. Solving a Rubik’s Cube is an incredibly demanding activity. It requires a person to analyze color patterns, memorize those patterns, and predict how the puzzle will look multiple steps into the future. But professional speed-cubers can complete this puzzle in a matter of seconds. “We humans can use our brains to perform difficult actions. We control …

Iran unleashes intense waves of strikes across Gulf as Hormuz crisis deepens

Iran unleashes intense waves of strikes across Gulf as Hormuz crisis deepens

Published by Sam Flores

Iran unleashed an intense wave of strikes across the Gulf region on Wednesday morning, while continuing its stranglehold of the Strait of Hormuz, in an intense attacking upsurge signalling that the war continues unabated, despite US President Donald Trump’s statements on Tuesday night that the intervention was “pretty much” completed. Euronews journalists in Doha and Dubai reported intensive waves of Iranian attacks on Tuesday night and Wednesday morning in the two capitals and across the region. Two Iranian drones fell in the vicinity of Dubai International Airport on Wednesday morning, the second time after a similar strike on Saturday, injuring four foreign nationals, Euronews correspondents in Dubai reported. The Dubai Media Office, which issues statements on behalf of the city-state’s government, said in a post on X that air traffic “is operating as normal” for the time being. The attack was followed by a new wave of Iranian strikes being intercepted by air defence systems, after another night of UAE figher jets patrolling the city to seek Iranian missiles and drones and residents received two …

‘Waves of displaced’ arriving in Lebanon’s Sidon as Israel warns of new strikes

‘Waves of displaced’ arriving in Lebanon’s Sidon as Israel warns of new strikes

Published by Sam Flores

France 24’s Catherine Norris Trent reports from Lebanon’s Sidon, where she says waves of displaced people have been arriving as they head further north in an effort to escape Israeli strikes. Israel’s military said earlier Tuesday it would soon strike Hezbollah infrastructure in Sidon and other locations in Lebanon’s south, warning residents to move away from targeted buildings. Source link

Gravitational waves finally reveal what’s inside neutron stars

Gravitational waves finally reveal what’s inside neutron stars

Published by Jenni Sidey

Some of the universe’s densest objects can twist, stretch, and resonate in ways that challenge even the most seasoned physicists. Neutron stars, the remnants of massive stars that have exploded as supernovae, cram more mass than the Sun into a sphere barely 20 kilometers wide. Their gravity is billions of times stronger than Earth’s, and their internal matter behaves unlike anything we can directly observe on our planet. For decades, astronomers have speculated about the interiors of these cosmic heavyweights. Protons and electrons may fuse into neutrons under crushing pressure, but theories also suggest layers of heavy elements, free protons, and even exotic phases like quantum superfluids and superconductors. Understanding this dense matter is crucial, because it could mirror the quark-gluon plasma that existed in the first microseconds after the Big Bang—conditions unreachable in terrestrial laboratories. Cartoon (not to scale) of the near zone (full figure) in a tidally interacting system, consisting of a star (pink disk) of finite radius (dashed white circle), and a tidal source (green disk) located at a characteristic distance. (CREDIT: …