Skip to main content

Home/ Advanced Concepts Team/ Contents contributed and discussions participated by johannessimon81

Contents contributed and discussions participated by johannessimon81

johannessimon81

Kenia's water problems resolved: satellite data help find giant aquifer - 0 views

  •  
    The underground lake is big enough to cover Kenia's water need for the next 70 years
johannessimon81

New discovery of unknown lifeforms underneath ice in Antarctica - 1 views

  •  
    2nd find within a year of unknown lifeforms. 23% unknown DNA.
johannessimon81

Update on Mars One - 2 views

  •  
    165000 people have applied and the founders of Mars One still seem enthusiastic. Wouldn't it be great if they actually could pull it off..?
johannessimon81

NASA Fires Up Rocket Engine Made of 3-D Printed Parts - 0 views

  •  
    I remember that ESA was looking into similar things for the Vulcain 2/2+ NE upgrade together with Volvo and other companies. Does anybody know about the status of that program (google does not ;-))?
johannessimon81

Scientist controls colleague's hand in first human brain-to-brain interface - 1 views

  •  
    The telepathic cyborg lives, sort of. University of Washington scientists Rajesh Rao and Andrea Stocco claim that they are the first to demonstrate human brain-to-brain communication. Rao sent a signal into a Stocco's brain via the Internet that caused him to move his right hand.
johannessimon81

New Form of Carbon is Stronger Than Graphene and Diamond - 0 views

  •  
    "Chemists have calculated that chains of double or triple-bonded carbon atoms, known as carbyne, should be stronger and stiffer than any known material."
johannessimon81

High efficiency solid state heat engine - 0 views

  •  
    We discussed this today during coffee. The inventor claims that he claims that a pressure differential can push hydrogen through a proton conductive membrane (thereby stripping off the electrons) which flow through an electric circuit and provide electric power. The type of membrane is fairly similar to that found in a hydrogen fuel cell. If the pressure differential is cause by selective heating this is in essence a heat engine that directly produces electricity. The inventor claims that this could be a high efficiency alternative to thermoelectric devices and could even outperform PV and Sterling engines with an efficiency close to that of fuel cells (e.g., ~60% @ dT=600K). I could not find any scientific publications as the inventor is not affiliated to any University - he has however an impressive number of patents from a very wide field (e.g., the "Super Soaker" squirt gun) and has worked on several NASA and US military projects. His current research seams to be funded by the latter as well. Here are some more links that I found: http://www.theatlantic.com/magazine/archive/2010/11/shooting-for-the-sun/308268/ http://www.johnsonems.com/?q=node/13 http://scholar.google.nl/scholar?q=%22lonnie+g+johnson%22+&btnG=&hl=nl&as_sdt=0%2C5
johannessimon81

Physicists Succeed in Making 'Impossible' Gamma-Ray Lens - 0 views

  •  
    High energy gamma rays are shown to be bent slightly by specialized lenses. The effect is likely due to pair-creation close to the atomic nuclei in the material.
johannessimon81

Mini-me - Tiny lifelike 3d printed "statues" - 1 views

  •  
    Creepy but cool
johannessimon81

12 Asteroids We Could Capture With Existing Rocket Technology - 0 views

  •  
    from wired.com
johannessimon81

Did you know that Earth has a ring? - 3 views

  •  
    Earth has had a ring of particles (similar to Saturn's) for a short period of time. And it is manmade.
johannessimon81

Cosmological model without accelerated expansion proposed - 1 views

  •  
    Redshift in this model is partially produced by a change in the masses of elementary particles (and atoms)
  •  
    It should not be impossible to verify a change in mass(es) over time. For example the electron cyclotron frequency scales ~e/m while the Hydrogen emission frequencies scale with ~m*e^4. Using multiple relationships like that which can be easily and accurately measured an increase in the mass of fundamental particles should - in principle - be detectable (even if the mass of the earth increases at the same time changing the relativistic reference frame).
johannessimon81

Typewriters agains dataleaks - 0 views

  •  
    The Russian government is purchasing typewriters to process sensitive documents to prevent theft of sensitive information. ?: Did they get this idea from Battlestar Galactica?
johannessimon81

Automatic porting of C++ to javascript - 1 views

  •  
    asm.js: it's really fast, backwards compatible, and now in the release version of Firefox. "By doing this the result is highly optimized and can be converted directly from this Asm.js syntax directly into ASSEMBLY without having to interpret it, as one would normally have to do with JavaScript" Here is great introduction to asm.js and C++ to js compilation: http://ejohn.org/blog/asmjs-javascript-compile-target
johannessimon81

Emperor LX chair: A way to never have your desk at the wrong height anymore - 6 views

  •  
    Zivile can you order this for me?
  •  
    work, game, watch movies, eat... - I wonder if a toilet is included though. :-P
« First ‹ Previous 101 - 120 of 194 Next › Last »
Showing 20 items per page