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Mapping Subtle Changes in Gravity

Mapping Subtle Changes in Gravity

Posted Mon, 25 Apr 2011 21:30:01 GMT by Mike Campbell

Any schoolchild should know that gravity is the force that keeps us on the ground and that the force of gravity is 9.8 ms-2. However, the force of gravity is not exactly the same at all points on the planet. This is because the density of the earth is not uniform; the earth is not a perfect sphere and therefore the height of the surface above the core varies from ocean deeps to high mountains. The gravitational pull of the earth is inversely proportional to the height one is above it - if you are far enough from the surface you experience weightlessness, after all.

Mapping Subtle Changes in Gravity

Much of ancient Martian atmosphere frozen at poles

Much of ancient Martian atmosphere frozen at poles

Posted Thu, 21 Apr 2011 23:00:00 GMT by Martin Leggett

Mars may well have had a much denser CO2-rich atmosphere hundreds of thousands of years ago - one with wilder dust storms and that was more likely to support running water. That's the claim coming from a new analysis of satellite radar data over the Martian southern ice cap - published in Science today - which hints at a thick wedge of frozen CO2 there that contains 30 times the 'dry ice' of previous estimates.

Much of ancient Martian atmosphere frozen at poles

Carbon counting in the USA - with a ground-breaking new biomass map

Carbon counting in the USA - with a ground-breaking new biomass map

Posted Wed, 20 Apr 2011 16:00:00 GMT by Martin Leggett

An incredibly detailed three dimensional map of the 'green architecture' of the US, including forest canopy heights and vegetation levels down to each hectare, has been released today by the Woods Hole Research Center. The fruit of five years labor, which is freely downloadable, paints a detailed snapshot of the carbon stocks above the soil, one that will aid forest managers, ecologists and climate scientists for years to come.

Carbon counting in the USA - with a ground-breaking new biomass map

Microblog post saves truckload of dogs in China

Microblog post saves truckload of dogs in China

Posted Wed, 20 Apr 2011 07:03:01 GMT by Gracie Valena

An animal rights activist in China stopped a truckload of dogs from being transported to Beijing restaurants, then microblogged for help to successfully prevent the delivery of the dogs. Online news report different numbers for the dog count, but there were more than 400 of them cramped togther in cages stacked in the truck.

Microblog post saves truckload of dogs in China

UK soil bacteria DNA mapped in world first

UK soil bacteria DNA mapped in world first

Posted Wed, 20 Apr 2011 00:01:00 GMT by Louise Murray

The bacterial ecosystems in Britain's soil have been mapped in a worldwide first. The soil microbe map gives us a unique baseline to measure environmental change. The research took four years to complete between 2007 and 2011. Far from being randomly distributed in soil these bacterial communities or biomes are organised according to their associated plant communities above

UK soil bacteria DNA mapped in world first

Zero Emission Taxis to be Tested for Olympics 2012

Zero Emission Taxis to be Tested for Olympics 2012

Posted Fri, 15 Apr 2011 17:49:00 GMT by Julian Jackson

Fuel Cell vehicles will be on London streets for Olympic Games and carrying passengers afterwards. A consortium of innovative companies have created a pair of prototype zero emission fuel cell London taxis - the famous ''Black Cabs'' that carry passengers around London. Though looking exactly like the familiar taxis - they are conversions, underneath the hood they have an electric motor powered by a hydrogen fuel cell and batteries

Zero Emission Taxis to be Tested for Olympics 2012

Scientist protects seeds for future generations

Scientist protects seeds for future generations

Posted Fri, 15 Apr 2011 17:19:00 GMT by John Dean

A scientist based at an American university has deposited a series of desert plant seeds in a collection designed to protect species should they die out due to environmental events. The University of Arizona (UA) has confirmed that Margaret Norem, a researcher from its Department of Arboretum Affairs, took the seeds to the Svalbard Global Seed Vault on a remote island off the coast of Norway, a few hundred miles from the North Pole.

Scientist protects seeds for future generations

Bright beaks equals delight for ducks

Bright beaks equals delight for ducks

Posted Thu, 14 Apr 2011 07:58:01 GMT by Ruth Hendry

Is brighter better? It is for ducks! How do you know how to pick a mate? Best body? Big car? Lots of money? Female mallards have their own unique way of determining which mate they should choose. Females of all species want to pick the best father for their offspring. This is the male with the best genes, who will produce successful, healthy children.

Bright beaks equals delight for ducks

Hear No Problems and See the Solutions

Hear No Problems and See the Solutions

Posted Tue, 12 Apr 2011 15:11:00 GMT by Tara Lynne Groth

What if you could change the color and tint of your windows and re-circulate the solar energy as electricity? Utilizing natural light by installing more windows allows you to rely less on artificial light sources; however the extra window space can negatively influence interior climate control and stress HVAC systems. A new technology in the glass manufacturing industry allows windows to collect solar energy and be reused. The color and tint of the windows can be controlled as well.

Hear No Problems and See the Solutions

Massive ocean studies raise grim possibilities for European climate

Massive ocean studies raise grim possibilities for European climate

Posted Thu, 07 Apr 2011 18:02:00 GMT by Colin Ricketts

Major studies of the oceans around Europe have led scientists to warn of possible changes in temperatures and sea conditions which will have a major impact on human and marine life. Scientists have raised alarming prospects for the future of the climate of north western Europe as meltwater pours south from the Arctic possibly slowing the warming ocean currents.

Massive ocean studies raise grim possibilities for European climate

Earth started out as 'candy floss'

Earth started out as 'candy floss'

Posted Mon, 28 Mar 2011 11:51:00 GMT by Martin Leggett

When the Earth was being built, the materials first to hand were fragile candy floss-like matter, says a new study in Nature Geoscience. The research also confirms that it was the chaos of the early solar nebula that whipped this matter into the more solid rocks, that formed the planets we have today.

Earth started out as 'candy floss'

New evidence of the first Americans

New evidence of the first Americans

Posted Sat, 26 Mar 2011 17:18:01 GMT by Colin Ricketts

A new archaeological find in Texas pushes further back the date when humans arrived in American, spelling the end of the Clovis First theory. The evidence has been found in Texas, where thousands of artefacts were discovered beneath a previous find of Clovis relics. Archaeologists believe the new evidence is between 13,200 and 15,500 years old and shows signs that the Clovis people adapted and improved on previous technologies.

New evidence of the first Americans

''Feathered Helmet'' opens door on earliest vertebrates

''Feathered Helmet'' opens door on earliest vertebrates

Posted Sat, 26 Mar 2011 16:33:00 GMT by Colin Ricketts

A new fossil find in China shows in unprecedented detail an ancient sea creature which scientists hope will help them find how the earliest vertebrates evolved. Researchers from China, Leicester and Oxford found the fossil, which for the first time shows the soft tentacles of primitive creatures called pterobranch hemichordates, which sheds new light on an important group of primitive sea creatures.

''Feathered Helmet'' opens door on earliest vertebrates

SuperHomes are Open to Visitors

SuperHomes are Open to Visitors

Posted Fri, 25 Mar 2011 12:21:00 GMT by Julian Jackson

Spring Opening for old houses that have been transformed into super low emissions properties. What is a SuperHome and does it wear a cape?  The answer to that is fairly clear: no it doesn't; in fact a SuperHome looks pretty much like an ordinary home, except it may have solar panels on the roof. It is inside that it is different. SuperHomes are homes that have reduced their their carbon emissions by at least 60%.

SuperHomes are Open to Visitors

Skinny worms provide new approach for obesity drugs

Skinny worms provide new approach for obesity drugs

Posted Thu, 24 Mar 2011 14:31:00 GMT by Colin Ricketts

Chemicals tested on worms may be of use in human medicines say a team of American researchers, and it's a major breakthrogh in designing new drugs. Scientists at the University of California, San Francisco have found a new way to understand human obesity in the unlikeliest of animals - the traditionally long and thin worm.

Skinny worms provide new approach for obesity drugs

Neutron probe reveals bacteria's light-gathering secrets

Neutron probe reveals bacteria's light-gathering secrets

Posted Thu, 24 Mar 2011 11:50:00 GMT by Martin Leggett

The power of neutrons have been bought to bear on the delicate structures of light-gathering bacteria, in new research published in the latest issue of biophysical Langmuir. It shows that chlorosomes in the bacteria are stable under conditions that could be employed in biohybrid solar cells - so opening the door to more efficient solar power, inspired by nature.

Neutron probe reveals bacteria's light-gathering secrets

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Whales, their babble, and clan dialects.

Posted Wed, 20 Jan 2016 01:00:00 GMT by JW Dowey

Birds and mammals conserve tropical forests and their carbon!

Posted Mon, 21 Dec 2015 11:30:18 GMT by Dave Armstrong

Choose shrew-like creatures as more sociable ancestors!

Posted Mon, 23 Nov 2015 09:22:01 GMT by Dave Armstrong

Bees' immunity as they evolved.

Posted Fri, 24 Apr 2015 09:29:11 GMT by Dave Armstrong

The wolf and the---domesticated wolf.

Posted Wed, 22 Apr 2015 12:20:33 GMT by Dave Armstrong

Weapons important for stag beetle evolution.

Posted Thu, 16 Apr 2015 08:56:28 GMT by JW Dowey

How do we face up to ice loss?

Posted Sat, 21 Mar 2015 10:31:00 GMT by Dave Armstrong

Britons prove their ancestry is diverse

Posted Thu, 19 Mar 2015 10:11:06 GMT by JW Dowey

Endemic Giant Salamander Threat-from its Neighbour.

Posted Wed, 18 Mar 2015 07:33:00 GMT by Dave Armstrong

Bees = humans, in false memory at least.

Posted Sun, 01 Mar 2015 19:00:00 GMT by Dave Armstrong

Mono Lake bacteria: Challenging life adaptability

Posted Tue, 07 Dec 2010 09:59:00 GMT by Paromita Pain

Flip-flopping alloy that turns heat into electricity

Posted Thu, 23 Jun 2011 17:19:01 GMT by Martin Leggett

Best habitats for life on Mars were underground, new study suggests

Posted Thu, 03 Nov 2011 14:14:00 GMT by Adrian Bishop

Earthquakes are always big news - or are they?

Posted Sat, 26 May 2012 11:02:39 GMT by Michael Evans

They're after Iceman Oetzi's 5300-year-old blood!

Posted Wed, 02 May 2012 21:18:15 GMT by Dave Armstrong

How fish evolved their migratory habits

Posted Wed, 15 Jan 2014 00:01:00 GMT by JW Dowey

Low Flying Objects

Posted Fri, 21 Oct 2011 11:04:00 GMT by Dave Armstrong

The survival and symbiosis of corals

Posted Wed, 29 Aug 2012 14:42:01 GMT by Dave Armstrong

Climate change killed off Viking settlement on Greenland

Posted Tue, 31 May 2011 14:50:00 GMT by Colin Ricketts

Bright beaks equals delight for ducks

Posted Thu, 14 Apr 2011 07:58:01 GMT by Ruth Hendry