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Contents contributed and discussions participated by Nina Nadine Ridder

Nina Nadine Ridder

Methanotrophs: Could bacteria help protect our environment? - 0 views

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    New method for geoengineering?

    New insight into methanotrophs, bacteria that can oxidise methane, may help us develop an array of biotechnological applications that exploit methane and protect our environment from this potent greenhouse gas. Publishing in Nature, scientists led by Newcastle University have provided new understanding of how methanotrophs are able to use large quantities of copper for methane oxidation.
Nina Nadine Ridder

Microscopic fish are 3-D-printed to do more than swim: Researchers demonstrate a novel ... - 0 views

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    Useful for space exploration, e.g. subsurface water reservoirs such as Europa or Enceladus?

    Nanoengineers at the University of California, San Diego used an innovative 3-D printing technology they developed to manufacture multipurpose fish-shaped microrobots -- called microfish -- that swim around efficiently in liquids, are chemically powered by hydrogen peroxide and magnetically controlled.
Nina Nadine Ridder

Earth's extremes point the way to extraterrestrial life - 0 views

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    Seems a little speculative but pretty interesting thoughts. In regards to terraforming Mars this might be of interest:
    "During the daytime, plant-like microorganisms on a Martian-like surface could photosynthesize hydrogen peroxide. At night, when the atmosphere is relatively humid, they could use their stored hydrogen peroxide to scavenge water from the atmosphere, similar to how microbial communities in the Atacama use the moisture that salt brine extracts from the air to stay alive."
Nina Nadine Ridder

Going solid-state could make batteries safer and longer-lasting - 3 views

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    If you pry open one of today's ubiquitous high-tech devices-whether a cellphone, a laptop, or an electric car-you'll find that batteries take up most of the space inside. Indeed, the recent evolution of batteries has made it possible to pack ample power in small places.
Nina Nadine Ridder

Robots collaborate to deliver meds, supplies, and even drinks - 2 views

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    At the recent Robotics Science and Systems (RSS) conference, a CSAIL team presented a new system of three robots that can work together to deliver items quickly, accurately and, perhaps most importantly, in unpredictable environments. The team says its models could extend to a variety of other applications, including hospitals, disaster situations, and even restaurants and bars.
Nina Nadine Ridder

Surprising similarity in fly and mouse motion vision - 1 views

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    Loosely related to an old ACT project on optical flow (if I remember correctly but even if not still an interesting read I think):

    "At first glance, the eyes of mammals and those of insects do not seem to have much in common. However, a comparison of the neural circuits for detecting motion shows surprising parallels between flies and mice. Scientists have learned a lot about the visual perception of both animals in recent years."
Nina Nadine Ridder

NASA discovers Earth-like planet orbiting 'cousin' of Sun - 1 views

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    Astronomers hunting for another Earth have found what may be the closest match yet, a potentially rocky planet circling its star at the same distance as the Earth orbits the Sun, NASA said Thursday.
Nina Nadine Ridder

Testing shows using microwaves to propel a craft into space might work - 3 views

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    A team of researchers at Colorado based Escape Dynamics is reporting that initial tests indicate that it might really be possible to launch space-planes into space using microwaves sent from the ground, to allow for a single stage spacecraft. If the idea pans out, the cost savings for sending satellites (or perhaps humans) into orbit could be considerable.
Nina Nadine Ridder

Why is life left-handed? The answer is in the stars - 2 views

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    While most humans are right-handed, our proteins are made up of lefty molecules. In the same way your left and right hands mirror one another, molecules can assemble in two reflected structures. Life prefers the left-handed version, which is puzzling since both mirrored types form equally in the laboratory.
Nina Nadine Ridder

New Satellite Maps Reveal Global Ocean Alkalinity - 3 views

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    Innovative techniques that use satellites to monitor ocean acidification are set to revolutionize the way that scientists study the Earth's oceans. This new approach offers remote monitoring of large swathes of inaccessible ocean from satellites, including ESA's Soil Moisture and Ocean Salinity (SMOS) mission.
Nina Nadine Ridder

Failed strut caused SpaceX rocket blast: CEO Elon Musk - 3 views

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    The SpaceX Falcon 9 explosion was caused by a failed strut that allowed a helium bottle to burst free inside the rocket's liquid oxygen tank, CEO Elon Musk said Monday. "One of those struts broke free during flight," Musk told reporters on a conference call to discuss the June 28 blast on what was supposed to be a routine cargo mission to the International Space Station.
Nina Nadine Ridder

Study suggests the Red Planet was icy rather than watery billions of years ago - 1 views

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    The high seas of Mars may never have existed. According to a new study that looks at two opposite climate scenarios of early Mars, a cold and icy planet billions of years ago better explains the water drainage and erosion features seen today.
Nina Nadine Ridder

Carbon dioxide pools discovered in Aegean Sea - 1 views

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    The location of the second largest volcanic eruption in human history, the waters off Greece's Santorini are the site of newly discovered opalescent pools forming at 250 meters depth. The interconnected series of meandering, iridescent white pools contain high concentrations of carbon dioxide (CO 2) and may hold answers to questions related to deepsea carbon storage as well as provide a means of monitoring the volcano for future eruptions.
Nina Nadine Ridder

Air travel and climate: A potential new feedback? - 0 views

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    Global air travel contributes around 3.5 percent of the greenhouse gas emissions behind/driving anthropogenic climate change, according to the International Panel on Climate Change (IPCC). But what impact does a warming planet have on air travel and how might that, in turn, affect the rate of warming itself?
Nina Nadine Ridder

Smart grids - The IET - 0 views

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    talk about European Technology Platform SmartGrids in Paris on the 7th Sep, 19h
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    in case somebody is in Paris on the 7th Sep. - sounds quite interesting
Nina Nadine Ridder

New carbon dioxide emissions model - 1 views

  • In order to achieve the long-term stabilisation of the atmospheric carbon dioxide concentration, the emissions will then have to be reduced by 56 percent by the year 2050 and approach zero towards the end of this century
Nina Nadine Ridder

Arguments from Global Warming Skeptics and what the science really says - 1 views

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    I think I posted this before (I think it was abt the iPod app) but regarding our discussion this afternoon it s a nice summary of the most frequent sceptic arguments...
Nina Nadine Ridder

Why Explore Mars? : Discovery News - 5 views

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    "NASA's proposed budget for 2011 is $19 billion," Brown says. "That's about three weeks of the war in Iraq."
    + interesting video on new rover design ("tumbleweed" rover)
Nina Nadine Ridder

Stephen Wolfram: Computing a theory of everything | Video on TED.com - 2 views

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    very interesting talk by the inventor of Mathematica;  if you have 20min on you hand I recommend watching it
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