XPost: sci.electronics.design, sci.physics, sci.space.policy   
   From: rgregoryclark@gmSPAMBLOACKail.com   
      
   In sci.physics Robert Clark  wrote:   
   >> On 11/3/2016 9:00 AM, Robert Clark wrote:   
   >>>> Yes, that's a good example. Electric, battery-powered airplanes and   
   >>>> helicopters already exist.   
   >>>   
   >>>Toys.   
   >>>   
   >>>   
   >>>> However, the key point is according to the   
   >>>> mathematics you can get even better power-to-thrust ratio with ionic   
   >>>> propulsion using ionizing wires at the nanoscale than helicopters   
   >>>> achieve.   
   >>>   
   >>>what math ? got  a url ?   
   >>>   
   >>   
   >> As important as is the fact that you would no longer need heavy   
   >> transformers   
   >> to produce tens of thousands of volts, even more important is the high   
   >> thrust-to-power ratio you can get by only using low voltages.   
   >   
   >How many times must you be told you do NOT need heavy transformers to   
   >produce high voltages?   
   >   
   >Camera flash units produce tens of thousands of volts.   
   >   
   ...   
   >   
   >A typical small aircraft engine produces about 140 kW, so at 500 V your   
   >current is a bit under 300 A.   
   >   
   >A typical small helicopter engine is about twice that size, so double   
   >the current for a helicopter.   
   >   
   >That means the conductors from the power supply must be huge and you   
   >have to have hundreds, if not thousands, of emmitters to get the   
   >individual currents down to levels that won't vaporize them.   
   >   
   >Even if you mangaged to pull all that off, you now have a huge RFI   
   >generator destroying all radio communication over a wide ares which   
   >the FCC would never allow to be operated.   
   >   
   >   
      
   Camera flash units work by using electrical capacitors. So while they are   
   able to provide a large amount of power for their weight, they do this by   
   discharging all their stored energy in only a fraction of a second. This is   
   why despite intense research into "supercapacitors" they still have not been   
   able to replace chemical batteries for sustained, continuous power   
   production.   
      
   In regards, to the current carried by the nanowires, you would likely need   
   millions to billions of them to get the required thrust for a large craft.   
   This is because the thrust is lower for lower voltage. Having such a large   
   number of nanowires is a very well-known phenomenon in production VLSI   
   electronic devices though.   
      
   About the RFI, it may be because the voltage now required is only in the   
   hundreds of volts range rather than tens of thousands of volts, the RFI is   
   also significantly reduced. This is also something that needs to be tested   
      
      
     Bob Clark   
   --   
   ----------------------------------------------------------------   
   -----------------------------------------------------------------   
   Finally, nanotechnology can now fulfill its potential to revolutionize   
   21st-century technology, from the space elevator, to private, orbital   
   launchers, to 'flying cars'.   
   This crowdfunding campaign is to prove it:   
      
   Nanotech: from air to space.   
   https://www.indiegogo.com/projects/nanotech-from-air-to-space/x/13319568/   
   ----------------------------------------------------------------   
   -----------------------------------------------------------------   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)