XPost: sci.physics, sci.space.policy, sci.electronics.design
From: krw@nowhere.com
On Tue, 1 Nov 2016 14:27:51 -0400, bitrex
wrote:
>On 11/01/2016 11:51 AM, John Larkin wrote:
>> On Tue, 1 Nov 2016 11:09:13 -0400, "Robert Clark"
>> wrote:
>>
>>> Nanotechnology makes possible an "ion drive" for air vehicles analogous to
>>> the famous ion drive of NASA's deep space probes:
>>>
>>> Carbon nanotubes for "Ionic Wind" Craft or "Ionocraft".
>>> Clark R*
>>> Department of Mathematics, Widener University, USA
>>> Review Article
>>> Volume 1 Issue 2 / Received Date: September 26, 2016 / Published Date:
>>> October 20, 2016
>>> Abstract
>>> Peter Thiel of the Founders Fund once famously said, "We wanted flying
cars,
>>> and we got 140 characters."But nanotechnology now does make possible the
>>> long desired flying cars. It's a different propulsion method though than
>>> propellers or jets however. It's propulsion by electric fields known as
>>> electrohydrodynamic propulsion (EHD). It works by ionizing air then using
>>> electric fields to propel the charged air molecules rearward, thus
producing
>>> thrust. It's quite analogous to the famous space ion drive of NASA. EHD has
>>> been known at least since the sixties. Its problem is, as with ion drive,
>>> the thrust is so low. So far the EHD craft have not been able to lift both
>>> themselves and their power supplies. The ones made so far leave the power
>>> supply on the ground and connect to the craft through power cables. But the
>>> equations of EHD suggest the thrust for the power required gets larger for
>>> thinner ionizing wires. In fact if the wires are at the nanoscale then this
>>> important thrust-to-power ratio can be a hundred times higher than for the
>>> craft constructed so far. This would be enough to lift the craft and the
>>> power supply. This research is to prove what the mathematics suggests. Note
>>> that if it works then all propeller and rotor driven craft become obsolete.
>>> Also, intermediate range automobile travel would be taken over by the EHD
>>> craft, so a large proportion of carbon-emissions would be eliminated,
>>> replaced by this zero-emission travel method. In regards to space
>>> propulsion, since EHD is so similar to ion drive, using components at the
>>> nanoscale may also work to improve the thrust of ion drive. This would be
>>> important to shortening the flight times of spacecraft using such drives.
>>> This is important not just for robotic spacecraft but also satellites that
>>> use such ion drives to reach their final GEO destinations. As it is now,
the
>>> ion drives used have such low thrust it takes months for such satellites to
>>> reach GEO, resulting in millions of dollars of lost revenue to the
satellite
>>> companies. Being able to increase the thrust of these drives would reduce
>>> the flight time, and therefore reduce this lost revenue.
>>> Keywords: Electrohydrodynamic propulsion; Carbon nanotubes; Nanowires;
Ionic
>>> wind; Ionocraft; Plasma drive
>>> https://medwinpublishers.com/NNOA/volume.php?volumeId=23&issueId=63
>>>
>>> Bob Clark
>>>
>>
>> Post again when Chevy dealerships are selling flying cars.
>>
>> Carbon nanotubes are the idiotic craze of the day, and are pretty much
>> useless so far. As electron or ion emitters, they quickly destroy
>> themselves.
>>
>> And they still don't violate conservation of energy. Where is all the
>> zero-pollution power going to come from?
>
>There will be several plug-in prime movers available, initially you'll
>have your choice of H2O hydrogen booster, Hendershot generator, or
>zero-point reactor at product launch.
I've been waiting for someone to start selling nano-technology
Hendershot generators. Sounds like a good business.
--- SoupGate-Win32 v1.05
* Origin: you cannot sedate... all the things you hate (1:229/2)
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