For any of you ‘lurker’ types and even some chemists or
        engineers who are not as into chemistry as they should be,
        there is a fantastic article in this months Scientific
        American by the two authors who first hypothesized the existence
        of the buckyball.  (buckminsterfullerenes).  
        It is an excellent introduction to the field and a really
        interesting read as well…..

                                Lewis Bernstein

Hi. If someone has a list (both number and title)
of the 26 World of Chemistry videos could they
please email it to me or the group? Thanks. Marsh
Internet: NU163…@VM1.NODAK.EDU
BITNET:   NU163467@NDSUVM1

Reading the article on washcloths remined me about the synthetic sponges
we use for dishes, etc.  On the packet it says that they should be rinsed
well before use.

When doing this, it appears that some surface active i.e. detergent remains in
the sponge after manufacture.

Is this all, or are their any other nasties left in the sponge?

How do they make the sponges anyway, i.e. how do they get the bubbles in them?

Thanks in advance for any ideas.

David White

I’m a born-again over-forty model rocket enthusiast. In the US, model
rocket engines are legal and sold ready-made. For those of us who quit
rockets when we discovered girls, then decided years later that rockets
were far less dangerous, there are spiffy fiberglass engines with
graphite nozzles and ammonium perchlorate composite propellants. It’s
getting to be like consumer aerospace, or that is a popular
characterization. We don’t make engines, or mix propellants, BTW. (We
pay good money for fire insurance, why invalidate it?)

Anyway, to get to the question. Several decades ago, I "experimented"
with ammonium perchlorate composites, and couldn’t find a mixture that
wasn’t shock, friction, and temperature sensitive. I then picked up a
book on perchlorates (I was a college chem major), which mentioned
several additives that were supposed to stabilize these mixtures
catalytically (e.g.; MnO2). Now I can see how a catalyst can make a
mixture *MORE* sensitive, by lowering an energy barrier. Can a catalyst
actually *STABILIZE* a mixture? If so, does anyone have a simple
explanation?

Thanks in advance,

-Larry C.

HI. I’m looking for a good topic for a Independant study! Something at
the Grade 13 Level… does anyone have any good ideas?

JOHN                     EMAIL: john.ricci…@canrem.uucp
     ( MAYBE SOMETHING RECENT ???? )
—
Canada Remote Systems.  Toronto, Ontario
NorthAmeriNet Host

Dear networkers:                                  Sept. 25, 1991

As I have written in the bucky news service, I have submitted a paper:

————————————————————————-
Lattice Distortion and Energy Level Structures in Doped C_70
by the Extended Su-Schrieffer-Heeger Model
Author: Kikuo Harigaya (Dr.)
Address: Electrotechnical Laboratory, Tsukuba Science City, JAPAN
e-mail: h…@tkyvax.phys.s.u-tokyo.ac.jp  /or/ e9…@etlcom1.etl.go.jp
Status: submitted to Chem. Phys. Lett.
————————————————————————-

If you have interests, would you please write to me??

I usually send preprints via air mail.  Therefore, I would be glad if you
can let me know your address of the conventional mail.

I am looking forward to hearing from you.

Sincerely yours,

Kikuo Harigaya (Dr.)

As a medical researcher (biomaterials), I need some information on preventing
corrosion. Would increasing the specific gravity and/or viscosity of water
prevent corrosion ? Would the addition of buckminsterfullerene to the solution
prevent corrosion ? Please reply to me directly since I don’t subscribe to this
list. Thanks in advance.

Dr. Josh Backon
Bac…@VMS.HUJI.AC.IL

I am seeking advice on how to remove mildew from a nylon tent. I wanted to use
a chlorine bleach but according to a tentmaker, using chlorine bleach may
disintegrate the material.

Thanks in advance.

T.Y….@massey.ac.nz

Massey University, New Zealand

        Whatever happened to Larry@kitty. . .com.  I miss his
        insightful and most relevant anecdotal stories. Did
        he get RIFed?

I need invisible ink that is visible in UV-light for ex.
Does anyone one some that are easy to make and use on paper
and also stable enough to stay invisible for many years

Rauno Luoma                                phone +358-0-4512778
M.Sc                                       internet Rauno.Lu…@hut.fi
Helsinki University of Technology
Laboratory of Metallurgy                   home  +358-0-822426