Earth

UC Santa Barbara scientist studies methane levels in cross-continent drive

UC Santa Barbara scientist studies methane levels in cross-continent drive

(Santa Barbara, Calif.) –– After taking a rented camper outfitted with special equipment to measure methane on a cross-continent drive, a UC Santa Barbara scientist has found that methane emissions across large parts of the U.S. are higher than currently known, confirming what other more local studies have found. Their research is published in the journal Atmospheric Environment.

Emotional response to climate change influences whether we seek or avoid further information

Emotional response to climate change influences whether we seek or avoid further information

BUFFALO, N.Y. – Sixty-two percent of Americans now say they believe that global warming is happening, but 46 percent say they are "very sure" or "extremely sure" that it is not. Only 49 percent know why it is occurring, and about as many say they're not worried about it, according to the April report of the Yale Project on Climate Change Communication.

Catching graphene butterflies

Catching graphene butterflies

Writing in Nature, a large international team led Dr Roman Gorbachev from The University of Manchester shows that, when graphene placed on top of insulating boron nitride, or 'white graphene', the electronic properties of graphene change dramatically revealing a pattern resembling a butterfly.

The pattern is referred to as the elusive Hofstadter butterfly that has been known in theory for many decades but never before observed in experiments.

First direct proof of Hofstadter butterfly fractal observed in moiré superlattices

First direct proof of Hofstadter butterfly fractal observed in moiré superlattices

Observation of second sound in a quantum gas

Observation of second sound in a quantum gas

Below a critical temperature, certain fluids become superfluid and lose internal friction. In addition, fluids in this state conduct heat extremely efficiently, with energy transport occurring in a distinct temperature wave. Because of the similarities to a sound wave, this temperature wave is also called second sound. To explain the nature of superfluids, the famous physicist Lev Landau developed the theory of two-fluid hydrodynamics in Moscow in 1941.

3-D modeling technology offers groundbreaking solution for engineers

Software developed at the University of Sheffield has the potential to enable engineers to make 'real world' safety assessments of structures and foundations with unprecedented ease.

Developed in the Department of Civil & Structural Engineering, the software can directly identify three-dimensional collapse mechanisms and provide information about margin of safety, vitally important to engineers.

Study reveals scientific consensus on anthropogenic climate change

A comprehensive analysis of peer-reviewed articles on the topic of global warming and climate change has revealed an overwhelming consensus among scientists that recent warming is human-caused.

The study is the most comprehensive yet and identified 4000 summaries, otherwise known as abstracts, from papers published in the past 21 years that stated a position on the cause of recent global warming – 97 per cent of these endorsed the consensus that we are seeing man-made, or anthropogenic, global warming (AGW)

Never-before-seen energy pattern observed at National High Magnetic Field Laboratory

TALLAHASSEE, Fla. Two research teams at the National High Magnetic Field Laboratory (MagLab) broke through a nearly 40-year barrier recently when they observed a never-before-seen energy pattern.

The butterfly-shaped pattern was first theorized by physicist Douglas Hofstadter in 1976, but it took the tools and technology now available at the MagLab to prove its existence.

RUB physicists let magnetic dipoles interact on the nanoscale for the first time

Fall warming on Antarctic Peninsula driven by tropically forced circulation

The eastern side of the Antarctic Peninsula, a finger of the southern polar continent that juts toward South America, has experienced summer warming of perhaps a half-degree per decade – a greater rate than possibly anywhere else on Earth – in the last 50 years, and that warming is largely attributed to human causes.