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jcunha

Holographic acoustic elements for manipulation of levitated objects - 0 views

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    Cool scientific and technical feat in engineering a tractor beam. See the explanation video here http://www.nature.com/ncomms/2015/151027/ncomms9661/extref/ncomms9661-s3.mov and the thing working in real time here http://www.nature.com/ncomms/2015/151027/ncomms9661/extref/ncomms9661-s2.mov
johannessimon81

Is It Foolish to Model Nature's Complexity With Equations? - 1 views

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    They use a technique they call "Empirical Dynamic Modeling" to find correlations between different variables of chaotic systems. Might be interesting for things like climate modeling and similar chaotic systems. The idea seems pretty straight forward but I never encountered it before - so I'm no sure if this is really a new development (curious if anybody else knows). If you are short on time just watch the video embedded in the article.
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    Just by reading the page and the related material I didn't really get much, but I think it could be worth investing some time in reading more about it. But I'm interested in this, so I'll try to dig deeper!
jcunha

Computer model matches humans at predicting how objects move - 0 views

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    We humans take for granted our remarkable ability to predict things that happen around us. Here, a deep learning model trained from real-world videos and a 3D graphics engine was able to infer physical properties of objects against humans.
jcunha

'Superman memory crystal' that could store 360TB of data forever | ExtremeTech - 0 views

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    A new so called 5D data storage that could potentially survive for billions of years. The research consists of nanostructured glass that can record digital data in five dimensions using femtosecond laser writing.
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    Very scarce scientific info available.. I'm very curious to see a bit more in future. From https://spie.org/PWL/conferencedetails/laser-micro-nanoprocessing I made a back of envelop calc: for 20 nm spaced, each laser spot in 5D encryption encodes 3 bits (it seemed to me) written in 3 planes, to obtain the claimed 360TB disk one needs very roughly 6000mm2, which does not complain with the dimensions shown in video. Only with larger number of planes (order of magnitude higher) it could be.. Also, at current commercial trends NAND Flash and HDD allow for 1000 Gb/in2. This means a 360 TB could hypothetically fit in 1800mm2.
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    I had the same issue with the numbers when I saw the announcement a few days back (https://www.southampton.ac.uk/news/2016/02/5d-data-storage-update.page). It doesn't seem to add up. Plus, the examples they show are super low amounts of data (the bible probably fits on a few 1.44 MB floppy disk). As for the comparison with NAND and HDD, I think the main argument for their crystal is that it is supposedly more durable. HDDs are chronically bad at long term storage, and also NAND as far as I know needs to be refreshed frequently.
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    Yes Alex, indeed, the durability is the point I think they highlight and focus on (besides the fact the abstract says something as the extrapolated decay time being comparable to the age of the Universe..). Indeed memories face problems with retention time. Most of the disks retain the information up to 10 years. When enterprises want to store data for longer times than this they use... yeah, magnetic tapes :-). Check a interesting article about magnetic tape market revival here http://www.information-age.com/technology/data-centre-and-it-infrastructure/123458854/rise-fall-and-re-rise-magnetic-tape I compared for fun, to have one idea of what we were talking about. I am also very curious so see the writing and reading times in this new memory :)
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    But how can glass store the information so long? Glass is not even solid?!
aborgg

A New Era in Stretchable Electronics - 1 views

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    Soft Robots Scientists from Cornell University and the Italian Technology Institute in Pontedera have developed an elastic robotic skin that is able to stretch up to five times its size, change colors, and even detect pressure. The luminescent skin, partly funded by the Army and Air Force's research wings, is comprised of different kinds of specialized silicone, making it flexible and soft.
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Marcus Maertens

Big Hero 6's Programmable Nanobots Are on the Horizon - 2 views

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    This collaborating swarm of drones acts as 3D pixels (voxels) to create giant, flying interactive displays.
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    I have never understood the flying part of these things. Isn't it really impracticle to have all those tiny quadrocopters zooming around. My money is on holography or still a google glass type of device, if only considering the energy requirements for doing anything kinetically.
Guido de Croon

New theory allows drones to see distances with one eye - 2 views

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    Inspired by the work that was done at the ACT, I continued working on optical flow landing at TU Delft. Today Bio & Bio published my article on a new theory that allows drones to see distances with a single camera. It shows that drones approaching an object with an insect-inspired vision strategy become unstable at a specific distance from the object. Turning this weakness into a strength, drones can actually use the timely detection of that instability to estimate distance. The new theory will enable further miniaturization of autonomous drones and provides a new hypothesis on flying insect behavior. Video: https://www.youtube.com/watch?v=Fm7SMJp8EA4&feature=youtu.be Article: http://iopscience.iop.org/article/10.1088/1748-3190/11/1/016004
Marcus Maertens

AI racks up insane high scores after finding bug in ancient video game * The Register - 2 views

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    Evolutionary Strategies are able to explore broader areas of the search space than reinforcement learning techniques. Thus, they are able to encounter strange bugs resulting in large rewards.
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    It will be the new hype in a few years when DL is settled....
Dario Izzo

Generative Art, じゃがりきん, Video, 2018 : Art - 4 views

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    Showing why epycicles worked so well
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    I would troll the world and do a GR theory using epicycles :)
jcunha

Full 360-deg 3D electronic holographic tabletop display - 2 views

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    Cool hologram generating tabletop. Check the videos. Would be interesting if it could be scaled down..
jaihobah

Emergence of Locomotion Behaviours in Rich Environments - 1 views

shared by jaihobah on 11 Jul 17 - No Cached
jcunha liked it
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    Some work by DeepMind on applying reinforcement learning to teach a computer to navigate complex environments. Come for the science - stay for the video: https://goo.gl/8rTx2F
Marcus Maertens

Catapulting spider winds up web to launch itself at prey: study - 8 views

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    New idea for launcher?
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    do you have a direct link to the high speed video?
jaihobah

Google's AI Wizard Unveils a New Twist on Neural Networks - 2 views

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    "Hinton's new approach, known as capsule networks, is a twist on neural networks intended to make machines better able to understand the world through images or video. In one of the papers posted last week, Hinton's capsule networks matched the accuracy of the best previous techniques on a standard test of how well software can learn to recognize handwritten digits." Links to papers: https://arxiv.org/abs/1710.09829 https://openreview.net/forum?id=HJWLfGWRb&noteId=HJWLfGWRb
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    impressive!
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    seems a very impressive guy :"Hinton formed his intuition that vision systems need such an inbuilt sense of geometry in 1979, when he was trying to figure out how humans use mental imagery. He first laid out a preliminary design for capsule networks in 2011. The fuller picture released last week was long anticipated by researchers in the field. "Everyone has been waiting for it and looking for the next great leap from Geoff," says Kyunghyun Cho, a professor"
eblazquez

Refik Anadol at the AI Art Gallery at GTC 2021 | NVIDIA - 0 views

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    A very nice expo currently showcased in Berlin, well worth a visit. https://www.koeniggalerie.com/exhibitions/38455/machine-hallucinations-nature-dreams/ The concept is quite cool and teh result just stunning (I recommend giving the youtube videos a good luck on your TV if you have teh chance)
dodo47

Plenoxels: Radiance Fields without Neural Networks - 1 views

shared by dodo47 on 11 Dec 21 - No Cached
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