NewsTrust - Most Recent Stories

'Stirling' power should propel spacecraft, experts say

Thu, 02 Feb 2012 00:00:00 -0800

New Scientist - Feb. 02 - 'Stirling' power should propel spacecraft, experts say

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Revealed - the capitalist network that runs the world

Wed, 19 Oct 2011 00:00:00 -0700

New Scientist - Oct. 19 (Special Report) - An analysis of the relationships between 43,000 transnational corporations has identified a relatively small group of companies, mainly banks, with disproportionate power over the global economy. The study's assumptions have attracted some criticism, but complex systems analysts contacted by New Scientist say it is a unique effort to untangle control in the global economy. Pushing the analysis further, they say, could help to identify ways of making global capitalism more stable.

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Voicemail hacking: How easy is it?

Wed, 06 Jul 2011 00:00:00 -0700

New Scientist - Jul. 06 - Voicemail hacking: How easy is it?

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How antidepressants boost growth of new brain cells

Sun, 17 Apr 2011 00:00:00 -0700

New Scientist - By Jessica Hamzelou - Apr. 17 (News Report) - The first clear evidence of how antidepressant drugs help to boost brain cell formation could lead to better treatments for depression. The hippocampus is one of just two brain regions known to grow new neurons throughout life - a process called neurogenesis. This process is disrupted in people with depression, although it is not known whether this is a cause or symptom of the condition. It is clear, however, that one of the ways that antidepressants work is by boosting neurogenesis in the hippocampus. Christoph Anacker and his colleagues at King's College London have now worked out how they do so. Previous research has shown a link between some antidepressants and stress hormones called glucocorticoids. So Anacker's team decided to test whether the antidepressant sertraline acts on the glucocorticoid receptors of brain cells. They grew human hippocampal progenitor cells in a dish and added sertraline. Ten days later, the cultures showed a 25 per cent greater than expected increase in the number of new neurons.

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Mixed response to climate change on Australia's coasts

Thu, 31 Mar 2011 00:00:00 -0700

New Scientist - Mar. 31 - Mixed response to climate change on Australia's coasts

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Sedimentary clues to an ancient megadrought

Sat, 26 Feb 2011 00:00:00 -0800

New Scientist - Feb. 26 (News) - Sedimentary clues to an ancient megadrought

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Goodbye grey skies, hello extra warming

Thu, 02 Dec 2010 00:00:00 -0800

New Scientist - Dec. 02 - Goodbye grey skies, hello extra warming

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Laser-powered helicopter hovers for hours

Thu, 02 Sep 2010 00:00:00 -0700

New Scientist - Sep. 02 (News) - Laser-powered helicopter hovers for hours

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Why Facebook friends are worth keeping

Thu, 15 Jul 2010 00:00:00 -0700

New Scientist - By Richard Fisher - Jul. 15 (Special Report) - NOTHING personal, but I don't really want to be your online friend. I'm sorry, I'm sure you are very nice. It's not you, it's me: I'm feeling grumpy and a tad antisocial, so perhaps we are all better off.

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Alpha, beta, gamma: The language of brainwaves

Mon, 12 Jul 2010 00:00:00 -0700

New Scientist - By Helen Thomson - Jul. 12 (Special Report) - So what exactly is a brainwave? Despite the way it is bandied about in everyday chit-chat, the term "brainwave" has a specific meaning in neuroscience, referring to rhythmic changes in the electrical activity of a group of neurons. Each neuron has a voltage, which can change when ions flow in or out of the cell. This is normally triggered by stimulation from another cell, and once a neuron's voltage has reached a certain point, it too will fire an electrical signal to other cells, repeating the process. When many neurons fire at the same time, we see these changes in the form of a wave, as groups of neurons are all excited, silent, then excited again, at the same time.

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What's wrong with the sun?

Mon, 14 Jun 2010 00:00:00 -0700

New Scientist - By Stuart Clark - Jun. 14 (Special Report) - ... for the past two years, the sunspots have mostly been missing. Their absence, the most prolonged for nearly a hundred years, has taken even seasoned sun watchers by surprise. "This is solar behaviour we haven't seen in living memory," says David Hathaway, a physicist at NASA's Marshall Space Flight Center in Huntsville, Alabama.

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Children of lesbian parents do better than their peers

Wed, 09 Jun 2010 00:00:00 -0700

New Scientist - By Jim Giles - Jun. 09 (News Report) - The children of lesbian parents outscore their peers on academic and social tests, according to results from the longest-running study of same-sex families.

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How religion made Jews genetically distinct

Fri, 04 Jun 2010 00:00:00 -0700

New Scientist - By Andy Coghlan - Jun. 04 (News Report) - How religion made Jews genetically distinct

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Shape-shifting islands defy sea-level rise

Wed, 02 Jun 2010 00:00:00 -0700

New Scientist - By Wendy Zukerman - Jun. 02 (News Analysis) - Shape-shifting islands defy sea-level rise

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Why acupuncture aids spinal recovery

Mon, 26 Apr 2010 00:00:00 -0700

New Scientist - Apr. 26 (News) - Why acupuncture aids spinal recovery

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'Rings of fire' erupt from sun in NASA probe's first videos

Thu, 22 Apr 2010 00:00:00 -0700

New Scientist - By Maggie McKee - Apr. 22 (News Report) - 'Rings of fire' erupt from sun in NASA probe's first videos

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Laser 'punch' could bump up fusion power

Thu, 01 Apr 2010 00:00:00 -0700

New Scientist - By Colin Barras - Apr. 01 (News) - Nuclear fusion – creating energy by fusing together light atomic nuclei, such as hydrogen – could begin at the National Ignition Facility (NIF) in California this year. To kick-start the reaction, the plan is to focus 192 high-power laser beams onto a tiny hollow metal cylinder that contains a small spherical fuel pellet of deuterium and tritium. The lasers would heat the cylinder to several million degrees, encouraging it to emit high-power X-rays into the pellet.

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Algae's solar electrons hijacked to steal power

Wed, 17 Mar 2010 00:00:00 -0700

New Scientist - By Colin Barras - Mar. 17 (News Report) - An international gang of biologists has carried out an audacious heist, stealing valuable electrons from photosynthesising algae.

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The US is lagging on nuclear reactor technology

Thu, 04 Mar 2010 00:00:00 -0800

New Scientist - By Phil McKenna - Mar. 04 (Special Report) - IT SEEMS obvious: if you're planning a new generation of nuclear power stations, you should invest in the most advanced and efficient designs available. Yet that's not what seems to be happening in the US. The first new nuclear power plants on American soil for 30 years could soon be under construction. President Barack Obama has promised tens of billions of dollars in loan guarantees for reactor builders, of which $8.3 billion was last month committed to back the construction of two Westinghouse AP1000 light water reactors.

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Genetic code 2.0: Life gets a new operating system

Tue, 16 Feb 2010 00:00:00 -0800

New Scientist - By Linda Geddes - Feb. 16 (News Report) - A new way of using the genetic code has been created, allowing proteins to be made with properties that have never been seen in the natural world. The breakthrough could eventually lead to the creation of new or "improved" life forms incorporating these new materials into their tissue.

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Lost leviathans: Hunting the world's missing whales

Tue, 09 Feb 2010 00:00:00 -0800

New Scientist - Feb. 09 (Special Report) - THEY are enigmatic sea monsters - rare, magnificent beasts patrolling the ocean depths. Yet old chronicles tell of populations of whales hundreds of times greater than today. Such tales have long been dismissed as exaggerations, but could they be true? Have humans killed such a staggering number of whales?

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Dirty babies get healthier hearts

Thu, 10 Dec 2009 00:00:00 -0800

New Scientist - By Debora MacKenzie - Dec. 10 (News Report) - AFFLUENT, modern babies live in a sanitised world. This has already been blamed for a high incidence of asthma and allergies, but might also up the risk of developing a host of other conditions common in rich countries, such as stroke and heart disease.

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Climate control for your desk

Wed, 09 Dec 2009 00:00:00 -0800

New Scientist - By Mason Inman - Dec. 09 (News Report) - WE'RE used to taking command of our personal climate in planes and cars by using simple controls. Why not in buildings too? A study of the effect of installing individual air-conditioning vents at office desks, and putting controls at each worker's fingertips, suggests it can cut a building's energy use in half.

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Darwin's masterpiece revisited - 11 November 2009

Tue, 24 Nov 2009 00:00:00 -0800

New Scientist - By Steve Jones - Nov. 24 (Special Report) - Unique among scientific theories, evolutionary biology finds its roots in a popular book by a single author.

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Mini ice age took hold of Europe in months

Tue, 24 Nov 2009 00:00:00 -0800

New Scientist - By Kate Ravillious - Nov. 24 (Special Report) - Just months - that's how long it took for Europe to be engulfed by and ice age

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