On Jun 14, 4:06 am, "hanson" <
han...@quick.net> wrote:
> Virdy "Mahipal" <
mahipal7...@gmail.com> wrote:
>
> [...]> Did you see that rocket that just went to the Chinese Space Lab?
>
>
http://www.youtube.com/watch?v=TBeZ3I2xwSU> No smoke trail like a stinking shuttle. What fuel are they using?
> > Looks like the first mission to Mars will be Chinese.
>
> Virdy wrote:
>
> "Minimum-signature (smokeless) propellants
> One of the most active areas of solid propellant research is the
> development of high-energy, minimum-signature propellant using CL-20
> (China Lake compound #20), C6H6N6(NO2)6, which has 14% higher energy
> per mass and 20% higher energy density than HMX. The new propellant
> has been successfully developed and tested in tactical rocket motors.
> The propellant is non-polluting: acid free, solid particulates free,
> and lead free." that's fromhttp://
en.wikipedia.org/wiki/Solid-fuel_rocket
>
> I gave up pursuing my career in rockets...
>
> hanson wrote:
>
> <
http://en.wikipedia.org/wiki/CL-20> is one interesting molecule.
> CL20 is Hexanitrohexaazaisowurtzitane, C6H6N12O12, or
> C6H6N6(NO2)6, which is synthesized in a five (5) step process
> from Benzylamine. That's a costly affair, considering the many
> steps, co-reactants and solvents.
> It seems to me that CL20 can be synthesized much much cheaper
> in one step in a UV catalyzed disproportioning reaction in the gas
> phase between of 4 moles NO (nitric oxide aka Nitrogen-monoxide)
> with 1 mole HCCH, Acetylene, which leads to the intermediary
> C2H2N2(NO2)2, that is structurally unstable O2N-N=CH-CH=N-NO2,
> which then simply trimerizes & stabilizes itself into C6H6N6(NO2)6,
> aka CL20.
Very interesting details, hanson. Why post interesting stuff? Ha ha...
> Did you work on anything like that?
No, not exactly. But I did sleep with some slimmy accented GEICO at a
Holiday Inn last night?! O wait... I might've been home actually per
the GPS signals emanating from my stalking enabled smartestphone.
My nerdy chic linked in page for public consumption is by on
Web Presence:
http://www.linkedin.com/in/mahipalvirdy
where my Connections link me to 4,316,465+ professionals. Yea!
Can't wait to take 'em all out for a drink.
I majored -- not that it matters anymore -- in Thermodynamics and
Fluid Dynamics, with a hefty side serving of Physics (that JAW
participant-observer experience histor(y), for i.e.), and do know a
significant amount of Chemistry. My Master's thesis was on Magneto
Plasma Dynamics.
My work with rockets was mainly with selecting the right rockets
technology (hydrazine, bipropellants, ion thrusters, etc.) for various
satelites, for precision attitude control dynamics, and for them
Hohman orbital transfers. Fun stuff. But Aerospace was downsizing in
late 1990s, and I was already too annoying@work because I tried to use
Dirac's Notation for communicating with fellow... you
know... coDreadedWorkers. I worked at GE Astrospace and took graduate
courses at Princeton nearby. I attended many seminars for over three
years there. All you need to be is a ...yawn... Nobel Prize recipient,
then
you can have your allocated one hour to speak at PU.
Like in screaming women voices: He's smarter than us, we have to get
rid of him! Wait for it... Syndrome. Funny... only if you are not the
smart one.
Why coDreadedWorkers? Ok, now that it's been asked... he he... So, I
presented a graph of attitude sensors and controllers charting which
technologies provided how much roll-pitch-and yawN precision. Ten plus
engineers in the room. One older man, gets up and literally yells
"That graph is all wrong!" and I'm silenced. Immediately, a second
older gentleman at the end of the table retorts "There's nothing wrong
with that graph other than your inability to comprehend it!" Then I
kept talking. I survived 5 years with that job. GE Plant was downsized
from 5000 employees down to 0. Wonder if my graph led to its demise?!
-- Mahipal
Insert any Simon and GirlFu<n>ckled song here for no silent
reason@all. Really, I couldn't spell Art's name properly even if I
Googled or Singed it. Besides SaG need all the publicity I can muster
for them. Might even make them famous. Fingers crossed and the Sounds
of you know.