Tag Archives: temperature

The universe is getting hot, hot, hot, a new study suggests

Temperature has increased about 10-fold over the last 10 billion years

The universe is getting hotter, a new study has found.

The study, published Oct. 13 in the Astrophysical Journal, probed the thermal history of the universe over the last 10 billion years. It found that the mean temperature of gas across the universe has increased more than 10 times over that time period and reached about 2 million degrees Kelvin today — approximately 4 million degrees Fahrenheit. (more…)

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How temperature guides where species live and where they’ll go

For decades, among the most enduring questions for ecologists have been: “Why do species live where they do? And what are the factors that keep them there?” A Princeton University-based study featured on the February cover of the journal Ecology could prove significant in answering that question, particularly for animals in the world’s temperate mountain areas. (more…)

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Martian salts must touch ice to make liquid water, study shows

ANN ARBOR — In chambers that mimic Mars’ conditions, University of Michigan researchers have shown how small amounts of liquid water could form on the planet despite its below-freezing temperatures.

Liquid water is an essential ingredient for life as we know it. Mars is one of the very few places in the solar system where scientists have seen promising signs of it – in gullies down crater rims, in instrument readings, and in Phoenix spacecraft self portraits that appeared to show wet beads on the lander’s leg several years ago. (more…)

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Rural researchers to take the temperature of public opinion on UK environmental change

Social scientists at the University of Exeter are working with environmental policy makers to explore public views on the future management of UK ecosystems.

The Centre for Rural Policy Research (CRPR) are leading a £325,000 project, funded by Sciencewise, the UK’s national centre for public dialogue in policy making involving science and technology issues.  (more…)

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NASA Orbiter Finds New Gully Channel on Mars

A comparison of images taken by the High Resolution Imaging Science Experiment (HiRISE) camera on NASA’s Mars Reconnaissance Orbiter in November 2010 and May 2013 reveal the formation of a new gully channel on a crater-wall slope in the southern highlands of Mars.

These before-and-after images are available online at https://www.jpl.nasa.gov/spaceimages/details.php?id=PIA17958 . (more…)

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First thin films of spin ice reveal cold secrets

Thin films of spin ice have been shown to demonstrate surprising properties which could help in the development of applications of magnetricity, the magnetic equivalent of electricity.

Published in Nature Communications, a team of researchers based at the London Centre for Nanotechnology (LCN), in collaboration with scientists from Oxford and Cambridge, found that, against expectations, the Third Law of Thermodynamics could be restored in thin films of the magnetic material spin ice. (more…)

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Temperature and ecology: In Chile, rival barnacles keep competition cool

A lot of research shows that temperature can strongly influence species interactions and sometimes shape the appearance and functioning of biological communities. That’s why a newly published finding that changes in temperature did not alter the competitive balance of power between two rival species of Chilean barnacles is an ecological surprise.

PROVIDENCE, R.I. [Brown University] — Here are two facts that make the lowly barnacle important: They are popular models for ecology research, and they are very sensitive to temperature. Given that, the authors of a new study about a bellwether community of two barnacle species in Chile figured they might see clear effects on competition between these two species if they experimentally changed temperature. In the context of climate change, such an experiment could yield profound new insights into the biological future of a major coastline that is prized for its ecological, aesthetic, and economic values. (more…)

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