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Contents contributed and discussions participated by jcunha

jcunha

Kombucha electronics - 2 views

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    Brings back some memories... Enjoy!
jcunha

'Disruptive' science has declined - 2 views

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    About "Papers and patents are becoming less disruptive over time" https://www.nature.com/articles/s41586-022-05543-x. "Overall, our results deepen understanding of the evolution of knowledge and may guide career planning and science policy. To promote disruptive science and technology, scholars may be encouraged to read widely and given time to keep up with the rapidly expanding knowledge frontier. Universities may forgo the focus on quantity, and more strongly reward research quality56, and perhaps more fully subsidize year-long sabbaticals. Federal agencies may invest in the riskier and longer-term individual awards that support careers and not simply specific projects57, giving scholars the gift of time needed to step outside the fray, inoculate themselves from the publish or perish culture, and produce truly consequential work. Understanding the decline in disruptive science and technology more fully permits a much-needed rethinking of strategies for organizing the production of science and technology in the future."
jcunha

Compact single-shot metalens depth sensors inspired by eyes of jumping spiders - 4 views

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    Making a jumping spider eye with nanophotonics and computer vision: depth from defocus with an integrated mentalens sensor! Some in the ACT might be familiar with the concept...
jcunha

Alibaba is making its own neural network chip - 3 views

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    The race for the AI chips intensifies.
jcunha

A Metalens with a Near-Unity Numerical Aperture - 0 views

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    A flat metalens based on the control of the diffraction pattern of individual nanoantennas can achieve NA~1 bending light at angles as high as 82º
jcunha

Dynamic flat lens with metasurface actuated with MEMS - 2 views

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    Great engineering feat from Capasso's idea - an integrated flat lens electrically controlled enabling dynamic beam steering. Reconfigurabilility is the aim. The lens can be used microscope systems, holographic and projection imaging, LIDAR and laser printing. Besides working now on the mid-IR, visible light is the target.
jcunha

Quantum physics paves the way for new chemical products - 0 views

jcunha

'Harder, better, faster, stronger'-tethered soft exosuit reduces metabolic cost of running - 1 views

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    "What if running the 26.2 miles of a marathon only felt like running 24.9 miles, or if you could improve your average running pace from 9:14 minutes/mile to 8:49 minutes/mile without weeks of training?"
jcunha

Fermat Library - platform for illuminating scientific papers - 2 views

shared by jcunha on 18 May 17 - No Cached
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    "Just as Pierre de Fermat scribbled his famous last theorem in the margins, professional scientists, academics and citizen scientists can annotate equations, figures and ideas and also write in the margins." Interesting way of analyzing research in the 21st century
jcunha

Self-learning neuromorphic chip that composes music - 0 views

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    Based in OxRAM... Looking forward to further details.
jcunha

Adaptive foveated single-pixel imaging with dynamic supersampling - 4 views

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    "In contrast to conventional multipixel cameras, single-pixel cameras capture images using a single detector that measures the correlations between the scene and a set of patterns. However, these systems typically exhibit low frame rates, because to fully sample a scene in this way requires at least the same number of correlation measurements as the number of pixels in the reconstructed image."
jcunha

3D printing of Glass - 1 views

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    Cool technique to 3D print glass structures of small sizes.
jcunha

Gravity hidden aspects of electrodynamics - 0 views

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    "Gravity spoils the symmetry regardless of whether magnetic monopoles exist or not. This is shocking. The bottom line is that the symmetry cannot exist in our universe at the fundamental level because gravity is everywhere"
jcunha

Electronic synapses that can learn signal the coming of the first real artificial brain - 0 views

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    A nice quartz article about research in neuromorphic hardware in micro/nanotech out there and future vision of the field.
jcunha

Vacuum tubes are back - in nano form - 0 views

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    Although vacuum tubes were the basic components of early electronic devices, by the 1970s they were almost entirely replaced by semiconductor transistors. They are now back in nano-form as "nanoscale vacuum channel transistors" that combine the best of vacuum tubes and modern semiconductors into a single device. This old-technology with a new twist could be useful for space applications due to broader temperature operational range and better radiation resilience - authors are with NASA Ames.
jcunha

HBP Neuromorphic Computing Platform Guidebook (WIP) - 0 views

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    "The Neuromorphic Computing Platform allows neuroscientists and engineers to perform experiments with configurable neuromorphic computing systems. The platform provides two complementary, large-scale neuromorphic systems built in custom hardware at locations in Heidelberg, Germany (the "BrainScaleS" system, also known as the "physical model" or PM system) and Manchester, United Kingdom (the "SpiNNaker" system, also known as the "many core" or MC system)."
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