Search results for string theory

General Physics Mar 27, 2025

Dirac's Plate Trick, the Hairy Ball Theorem and more: Research probes physics of irregular objects on inclined planes

How gravity causes a perfectly spherical ball to roll down an inclined plane is part of the elementary school physics canon. But the world is messier than a textbook.

Quantum Physics Mar 10, 2025

Quantum entanglement sensors could test quantum gravity

Ask almost any physicist what the most frustrating problem is in modern-day physics, and they will likely say the discrepancy between general relativity and quantum mechanics. That discrepancy has been a thorn in the side ...

General Physics Mar 5, 2025

Distinguishing classical from quantum gravity through measurable stochastic fluctuations

In a new Physical Review Letters study, researchers propose an experimental approach that could finally determine whether gravity is fundamentally classical or quantum in nature.

Mathematics Feb 26, 2025

What's the shape of the universe? Mathematicians use topology to study its shape and everything in it

When you look at your surrounding environment, it might seem like you're living on a flat plane. After all, this is why you can navigate a new city using a map: a flat piece of paper that represents all the places around ...

Superconductivity Feb 5, 2025

Physicists measure a key aspect of superconductivity in 'magic-angle' graphene

Superconducting materials are similar to the carpool lane in a congested interstate. Like commuters who ride together, electrons that pair up can bypass the regular traffic, moving through the material with zero friction.

Earth Sciences Feb 3, 2025

Research identifies migration, housing quality as risk factors in earthquake deaths

The vast majority of earthquakes strike inside the Ring of Fire, a string of volcanoes and tectonic activity that wraps around the coastlines of the Pacific Ocean. But when an earthquake hits, the areas that experience the ...

Space Exploration Feb 3, 2025

Is there life out there? The existence of other technological species is highly likely

We live in a golden age for space exploration. Scientists are gathering massive amounts of new information and scientific evidence at a record pace. Yet the age-old question remains unanswered: Are we alone?

General Physics Jan 23, 2025

Clocking nature's heaviest elementary particle: CMS tests whether top quarks play by Einstein's rules

In the first study of its kind at the Large Hadron Collider (LHC), the CMS collaboration has tested whether top quarks adhere to Einstein's special theory of relativity. The research is published in the journal Physics Letters ...

Archaeology Jan 10, 2025

A 350-year-old optical illusion story is behind the viral selfie location of Saint Ignatius

The church of Saint Ignatius in Rome (or San Ignazio) has become a viral selfie location. Tourists have been queuing out the doors for a chance to take a selfie in a mirror that reflects the church's richly painted ceiling.

General Physics Dec 17, 2024

Explaining physical reality: Physicists 'bootstrap' validity of string theory

String theory, conceptualized more than 50 years ago as a framework to explain the formation of matter, remains elusive as a "provable" phenomenon. But a team of physicists has now taken a significant step forward in validating ...

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