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Joris _

Video: Seagull Robot Takes Off And Flies On Its Own, Just Like the Real Thing | Popular... - 5 views

www.popsci.com/...akes-and-flies-just-real-thing

robot technology innovation

shared by Joris _ on 28 Mar 11 - No Cached
LeopoldS liked it
  • Joris _ on 28 Mar 11
     
    Awesome, they managed. (this is a different deal as the micro ones )
  • ...3 more comments...
  • pacome delva on 29 Mar 11
     
    haha, just what they need in holland ;) anyway this is impressive !
  • LeopoldS on 31 Mar 11
     
    really nice - must not be that easy to control, correct?
  • Joris _ on 03 Apr 11
     
    when we tried (http://cas.ensmp.fr/~petit/site-oiseau-np/main.htm good old time :) ) the kinematic and mechanics were the big issues.
  • LeopoldS on 04 Apr 11
     
    this looks like a very nice project back in 2005 ...
  • Ma Ru on 05 Apr 11
     
    Does it also attack people to capture their fish & chips like those beasts we have here in St. Ives?
Christophe Praz

The New Space Race: Bringing Internet to the Other 4 Billion | WIRED - 2 views

www.wired.com/...the-new-space-race-internet

space internet WiFi

shared by Christophe Praz on 04 Feb 15 - No Cached
  • Christophe Praz on 04 Feb 15
     
    nice overview of the 3 main space related projects attempting to bring internet access to the world, namely SpaceX+Google micro-satellites network, OneWeb+Virgin Galactic OneWeb and Project Loon by Google. not a lot of technical details though...
jcunha

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

www.extremetech.com/...that-could-store-360tb-of-data

technology 5D PHY memory TB

shared by jcunha on 22 Feb 16 - No Cached
  • jcunha on 22 Feb 16
     
    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.
  • ...2 more comments...
  • jcunha on 22 Feb 16
     
    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.
  • Alexander Wittig on 22 Feb 16
     
    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.
  • jcunha on 23 Feb 16
     
    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 :)
  • joergmueller on 23 Feb 16
     
    But how can glass store the information so long? Glass is not even solid?!
osikorsk

World's First 'Living Machine' Created Using Frog Cells and Artificial Intelligence | L... - 0 views

www.livescience.com/frogbots-living-robots.html

science bio AI

shared by osikorsk on 16 Jan 20 - No Cached
  • osikorsk on 16 Jan 20
     
    Using AI to design and build a micro organism to perform a task. Full publication can be found here: https://www.pnas.org/content/pnas/early/2020/01/07/1910837117.full.pdf
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