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Contents contributed and discussions participated by dejanpetkow

dejanpetkow

Photonic calculus with analog computer - 5 views

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    Weird.
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    Would this kind of computer be more space environment resistive?
dejanpetkow

Metamaterials + Wireless Power Transfer - 2 views

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    Put together two ACT topics and see what happens.
dejanpetkow

3D Holographic Power Point Presentation at ASE 2013 - 1 views

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    THIS is how the ACT should give its science coffees, and I am not referring to the fat stage or the guy's dress.
    Next time I'm attending this traditional ACT exercise I expect such a show!
dejanpetkow

Holo-Deck 1.0 - YouTube - 3 views

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    Another Star Trek technology :)

    Might have an positive psychological effect if astronauts on long term missions could virtually escape their confinement - walking through a labyrinth with the blue sky above them. Ok, ISS does not provide enough space, but on Moon or Mars...
dejanpetkow

Torvalds comments on NVIDIA - 3 views

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    Soooo beautiful!!! Just start at 49:25.
dejanpetkow

Light Table - a new IDE concept - 2 views

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    "Despite the dramatic shift toward simplification in software interfaces, the world of development tools continues to shrink our workspace with feature after feature in every release. Even with all of these things at our disposal, we're stuck in a world of files and forced organization - why are we still looking all over the place for the things we need when we're coding?"
dejanpetkow

Gesture recognition via Doppler effect (article in German) - 1 views

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    How microphone and speaker of a laptop are used to recognize movement in front of the computer. The article is in German but the video is in English.
dejanpetkow

[1202.5708] The Alcubierre Warp Drive: On the Matter of Matter - 1 views

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    News about the warp drive based on the original Alcubierre metric but with modified shape function.

    Focus of the reserach was on the interaction between warp bubble and cosmic particles. Result: People on board need shielding. People at the journey's destination might get roasted (by Gamma rays if you want to know).
dejanpetkow

Camilla's ARIADNA study in German media - 5 views

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    But the comments are not critical, it's just bullshitting.
dejanpetkow

Bioengineering to generate healthy skin - 1 views

  • That is, using a small biopsy from a specific patient, they can generate almost the entire cutaneous surface of that individual in the lab.
  • that it is possible to isolate epidermic stem cells from patients with different genetic skin diseases, cultivate them and, using molecular engineering as a first step, incorporate the therapeutic genes into each patient's genome to take the place of the one that the patient does not have or that functions abnormally. Afterwards, in the second step, the stem cells would be assembled into patches ready to be transplanted onto the patients.
  • "What we did in this case -- explains Marcela del Río -- was to transfer a normal SPINK-5 gene to a patient's stem cells and later use these cells to generate skin that could be transplanted to experimental models, such as mice."
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    Nice approach to generate healthy skin and to patch parts or to replace the overall human skin. Next step - clinical studies.
dejanpetkow

Torsional Carbon Nanotube Artificial Muscles - 0 views

  • Actuator materials producing rotation are rare and demonstrated rotations are small, though rotary systems like electric motors, pumps, turbines and compressors are widely needed and utilized. Present motors can be rather complex and, therefore, difficult to miniaturize. We show that a short electrolyte-filled twist spun carbon nanotube yarn, which is much thinner than a human hair, functions as a torsional artificial muscle in a simple three-electrode electrochemical system, providing a reversible 15,000° rotation and 590 revolutions/minute. A hydrostatic actuation mechanism, like for nature’s muscular hydrostats, explains the simultaneous occurrence of lengthwise contraction and torsional rotation during the yarn volume increase caused by electrochemical double-layer charge injection. Use of a torsional yarn muscle as a mixer for a fluidic chip is demonstrated.
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    I have no access to the pdf, but abstract sounds interesting.
dejanpetkow

Cloaking magnetic fields: First antimagnet developed - 2 views

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    Sante, this thing is made of a superconductor-metamaterial hybrid. Should be non-linear enough for you :)
dejanpetkow

Polymers with very strong Piezoelectric effect discovered - 0 views

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    Harvesting vibrational energy?
dejanpetkow

junq.info - 3 views

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    This journal publishes failed scientific attempts, experiments, theories. There seems to be a peer review process behind it.
Guido de Croon

inverse laser - 5 views

PHY
started by Guido de Croon on 22 Feb 11 no follow-up yet
  • dejanpetkow
     
    Could this be applied to in-space energy beam via laser?
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