Ultracold atoms dressed by light simulate gauge theories

Our modern understanding of the physical world is based on gauge theories: mathematical models from theoretical physics that describe the interactions between elementary particles (such as electrons or quarks) and explain ...

Scientists identify climate 'tipping points'

An international team of scientists have identified potential 'tipping points' where abrupt regional climate shifts could occur due to global warming,

Rising oceans - too late to turn the tide?

Melting ice sheets contributed much more to rising sea levels than thermal expansion of warming ocean waters during the Last Interglacial Period, a UA-led team of researchers has found. The results further suggest that ocean ...

Feet may be the key to hand evolution

(PhysOrg.com) -- Scientists in Canada have used a mathematical model to simulate the evolution from an ape-like hand to the modern-day human hand, and discovered that changes in our fingers and hands developed in parallel ...

Trucks lose, ships win in warmer Arctic

Global warming will have a devastating effect on roads in the Arctic but open up tantalising routes for shipping, according to a study published on Sunday in the specialist journal Nature Climate Change.

Climate cycles create California precipitation uncertainty

Over the past 40 years, winters in California have become drier. This is a problem for the region's agricultural operations, as farmers rely on winter precipitation to irrigate their crops. Determining if California will ...

New research sheds light on freak wave hot spots

Stories of ships mysteriously sent to watery graves by sudden, giant waves have long puzzled scientists and sailors. New research by San Francisco State professor Tim Janssen suggests that changes in water depth and currents, ...

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