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Nina Nadine Ridder

Can physical exercise enhance long-term memory? - 1 views

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    Exercise can enhance the development of new brain cells in the adult brain, a process called adult neurogenesis. These newborn brain cells play an important role in learning and memory. A new study has determined that mice that spent time running on wheels not only developed twice the normal number of new neurons, but also showed an increased ability to distinguish new objects from familiar objects.
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    wow ... time to start running again ...
jcunha

Experimental evidence for new Flexo-electric nanomaterial - 1 views

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    A new experiment proved the existence of a new effect in nanomaterials: flexo-electric effect. The material has built-in mechanical tension that changes shape when you apply electrical voltage, or that generates electricity if you change its shape and was theorized some decades ago.
    Now, SrTiO3 allowed to observe this new effect, being comparable with piezoelectric effect.
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    My old twente university group! :)
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    Isn't muscle wire quite old technology though?
Paul N

New derivation of pi links quantum physics and pure math - 5 views

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    In 1655 the English mathematician John Wallis published a book in which he derived a formula for pi as the product of an infinite series of ratios. Now researchers from the University of Rochester, in a surprise discovery, have found the same formula in quantum mechanical calculations of the energy levels of a hydrogen atom.
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    This is insanity, Max.
    Or maybe it's genius.
joergmueller

In a new round of testing, NASA confirms yet again that the 'impossible' EMdrive thrust... - 4 views

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    Engineer Roger Shawyer's controversial EM Drive thruster jets back into relevancy this week, as a team of researchers at NASA's Eagleworks Laboratories recently completed yet another round of testing on the seemingly impossible tech.
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    I like this just because it will end up on Thijs' desk :D
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    Interesting that the new comes in... Yahoo Finance :). Another more complete article http://nextbigfuture.com/2015/11/nasa-eagleworks-has-tested-upgraded.html
jcunha

Kilogram conflict resolved at last - 3 views

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    Apparently it's time for retirement of the Le Grand K, if all goes well until the middle of next year...
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    "One method (...) involves counting the atoms in two silicon-28 spheres that each weigh the same as the reference kilogram."
    Sounds like a lengthy task, but someone must keep those physics PhD students busy, I guess...
Ma Ru

Dutch cyclists have longer lives say researchers - 0 views

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    It's official. But note the clause: *Dutch* cyclists...
aborgg

Watch Uranium Emit Radiation - 2 views

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    You've heard of the catastrophic effects of radiation on environments, animals and humans. A seemingly silent and invisible destroyer, radiation can make whole cities inhabitable for hundreds of years. But have you ever wondered what radiation actually looks like? There may be one image that jumps to mind.

    We saw the same detector setup in the room opposite to ours during the Open Day! Using uranium is just cooler. :)
Nina Nadine Ridder

Quantum computer around the corner after Australian scientists make key breakthrough - 1 views

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    Australian scientists have cleared one of the final hurdles for designing and building a quantum computer. The team of engineers from the University of New South Wales has successfully built a core component needed for the computer to operate and the work is published today in the journal Nature.
Luís F. Simões

Nature's special issue on Interdisciplinarity - 2 views

  • Nature’s special issue probes how scientists and social scientists are coming together to solve the grand challenges of energy, food, water, climate and health. This special scrutinizes the data on interdisciplinary work and looks at its history, meaning and funding. A case study and a reappraisal of the Victorian explorer Richard Francis Burton explore the rewards of breaking down boundaries. Meanwhile, a sustainability institute shares its principles for researchers who work across disciplines. Thus inspired, we invite readers to test their polymathy in our lighthearted quiz.
Juxi Leitner

Nasa scientists find evidence of flowing water on Mars | Science | The Guardian - 2 views

Nina Nadine Ridder

Watching an exoplanet in motion around a distant star - 5 views

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    Imaging of gas giant orbiting its central star (related to Jai's YGT proposal):

    With GPI, astronomers image the actual planet--a remarkable feat given that an orbiting world typically appears a million times fainter than its parent star. This is possible because GPI's adaptive optics sharpen the image of the target star by cancelling out the distortion caused by the Earth's atmosphere; it then blocks the bright image of the star with a device called a coronagraph, revealing the exoplanet.
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    such a simple image, such an awesome feat of science and engineering!
aborgg

Electron waves refract negatively - 1 views

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    Waves of electrons have been bent backward in a sheet of graphene, allowing physicists to focus electrons the way a lens focuses light.

    Electrons coursing through a sheet of carbon atoms exhibited negative refraction, bending at angles not seen in nature. By exploiting this unusual bending, the researchers created a lenslike device to focus the electrons to a tiny point. The new technique could help physicists learn how to manipulate electrons in the tight confines of miniaturized electronic devices, where the particles often behave like waves.
Nina Nadine Ridder

Enhanced marine sulphur emissions offset global warming and impact rainfall : Scientifi... - 0 views

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    ocean fertilization might induce increased marine aerosol (DMS) emissions leading to further cooling effect but also changes in precipitation
Thijs Versloot

Breakthrough observation of Mott transition in a superconductor - 1 views

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    An international team of researchers, including the MESA+ Institute for Nanotechnology at the University of Twente in The Netherlands and the U.S. Department of Energy's Argonne National Laboratory, announced today in Science the observation of a dynamic Mott transition in a superconductor.
Ma Ru

Intelligent Machines - BBC News - 3 views

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    AI week on BBC - interesting opportunity to get a glimpse into how the field is viewed by laymen...
Nina Nadine Ridder

The tiniest Lego: a tale of nanoscale motors, rotors, switches and pumps - 3 views

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    Inspired by biology, chemists have created a cornucopia of molecular parts that act as switches, motors and ratchets. Now it is time to do something useful with them.
Thijs Versloot

New theory to lead to radiationless revolution - 3 views

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    Physicists have found a radical new way to confine electromagnetic energy without it leaking away, akin to throwing a pebble into a pond with no splash. The theory could have broad ranging applications from explaining dark matter to combating energy losses in future technologies.
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    I think (but am not sure) that is related to a topic that Dirk Bouwmeester's group at Leiden University works on for a while now:
    "Linked and knotted beams of light"
    http://irvinelab.uchicago.edu/papers/nphys1056.pdf
johannessimon81

Breaking the optical diffraction limit by a factor 3-4... ideas for telescopes? - 0 views

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    In this article the authors describe an improvement of their optical microscope techniques for which some of the received a Nobel prize in the past. They achieve resolutions far beyond the optical diffraction limit which is supposed to limit detail resolution due to quantum-mechanical effects. Their techniques include structured illuminiation (producing interference patterns), switchable fluorescent markers as well as multi-frame super resolution enhancement. Authors are able to take a single image in about 0.3 seconds which allows the study of protein processes in the cell: http://spon.de/vgTb7 .
    Although it is hard to imagine the application of many of these techniques for telescopes (except for super resolution), I am wondering if any of this could help building telescopes with increased optical power or reduced weight. Any ideas..?
Ma Ru

Estimating the reproducibility of psychological science - 1 views

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    Apparently, between 33 to 50%. But I'm not convinced the results are reproducible...
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