HDTenEightyP/NetNews huggingface dataset:
From: billn@hpcvaac.cv.hp.com (bill nelson)
Subject: Re: White gold
Organization: Hewlett-Packard Company, Corvallis, Oregon USA
Date: Fri, 25 Dec 1992 10:33:37 GMT

dl10696@ehsn4.cen.uiuc.edu (Dat Trieu Le) writes:
: 
: >White gold usually contains either 25% platinum or 12% palladium.
: 
: >Bill
: 
: I was under the impression that the gold jewelers sell are alloys.
: Pure gold is too soft and brittle to be used as jewelry. I guess
: that's why American jewelers don't sell any purer than 18 karot gold.
: But I was unaware of the alloys they actually use.

Exactly. It is the platinum or palladium that makes the gold "white"
in color. There are many alloys used.

Bill
From: mmm@cup.portal.com (Mark Robert Thorson)
Newsgroups: sci.chem
Subject: Re: Glow Cubes
Date: Tue, 22 Dec 92 20:04:46 PST
Organization: The Portal System (TM)

I remember reading about these things.  I believe the phosphor was
incorporated into an aerogel, with the tritium applied as a gas
soaking the block.  Sounded neat to me.  As I recall, the big
advantage is much higher light output than traditional tritium-based
light sources.  I remember about 20 years ago Edmund Scientific used
to sell light sources which were capsules of tritium gas internally
coated with a phosphor.  I wish I had bought one now, but of course it would
have decayed considerably by now (the half-life of tritium is about 5 years).
From: R_Tim_Coslet@cup.portal.com
Newsgroups: sci.chem
Subject: Re: Home Solvent for Silly Putty
Date: Thu, 31 Dec 92 09:02:45 PST
Organization: The Portal System (TM)
  <1992Dec30.073849.1934@mr.med.ge.com>

>buxton (buxton@whitewater.chem.wisc.edu) wrote:
>: My niece managed to rub quite a bit of silly putty into our carpeting this  
>: Christmas, and I was wondering if anyone had any experience with removing  
>: this stuff from carpeting. 
>: Eric
>
>In a less-enlightened age, I would have suggested a can of freon to freeze
>it, which would enable you to shatter it.  
>
>Oh, the liquid nitrogen should keep pretty well in the thermos bottle, if it's
>a good one, for a while anyway.  And be careful not to freeze your fingers!
>
>--
>
>Dave Hinz  -  Opinions expressed are mine, not my employer's.  Obviously.

He might want to try dry ice instead of nitrogen... its alot easier for
most people to get (and isn't quite so cold). You can often get it from
ice cream stores.

                                        R. Tim Coslet

Usenet: R_Tim_Coslet@cup.portal.com
        technology, n.  domesticated natural phenomena
From: jaskew@spam.ua.oz (Joseph Askew)
Newsgroups: sci.chem
Subject: Re: composition of "white" gold
Summary: King Midas' touch
Date: 18 Dec 92 05:15:03 GMT
Followup-To: sci.chem
Organization: Statistics, Pure & Applied Mathematics, University of Adelaide

In article <mancini-141292161536@usx221.fysik.uu.se> mancini@fysik.uu.se (Derrick C. Mancini) writes:
>In article <1992Dec13.094616.25458@hpcvaac.cv.hp.com>,
>billn@hpcvaac.cv.hp.com (bill nelson) wrote:
>> giber@pollux.cs.uga.edu (Carolyn Giberson) writes:

>>> White gold is a gold alloy, containing silver and nickel I think.

>Small amounts of nickel made be added for improved strength.  Silver-gold
>alloy IS found naturally, it is not white gold (as Bill pointed out).  It
>is called electrum and was known to the ancients as such.

Some of the earilest coinage found is in fact of electrum. It was found
fairly commonly in Asia Minor (Turkey nowadays for those who are classics
impaired or woh have been educated anytime in the last 20 years) in river
beds. King Midas, famous for his touch, produced many electrum coins which
look rather funny as they hadn't got the circular shape quite right. They
were abandoned for regular gold and silver coins (separate that is) because
of quality problems - the gold/silver mix was not guarenteed to be constant.

Sorry this has nothing to do with Chemistry, it's a Friday afternoon so
I thought I might bring a little history to lighten the mood. Hey it's
better than asking how to make LSD/Speed/etc ad nauseum :-)


Joseph Askew


-- 
Joseph Askew, Gauche and Proud  Barbarian horns draw out the northern wind;
jaskew@spam.maths.adelaide.edu  Paler than water lies the Thistle Pass;
Disclaimer? Sue, see if I care  Sky swallows up the road to Kokonor;
One China One Korea One Eire32  Moonlight, a thousand miles along the Wall.
Newsgroups: sci.chem
From: xslkkk@oryx.com (kenneth k konvicka)
Subject: Benzene in Strawberries?
Organization: Oryx Energy, Dallas, Texas.
X-Newsreader: Tin 1.1 PL5
Date: Mon, 21 Dec 1992 23:06:28 GMT

Any of you aromatic types know of benzene (in low ppb concs) produced in fruit,
vegetables, or anything else we might inhale or ingest?  Refs?

 
Newsgroups: sci.chem
From: bill@leeweyr.sccsi.com (Bill Lee)
Subject: Re: Recommendations on glue for PETE plastic?
Organization: Lee Aerie
Date: Sat, 2 Jan 1993 15:51:33 GMT

In article <1993Jan1.231625.29359@netcom.com> amillar@netcom.com (Alan Millar) writes:
>I am making a model, and I would like to use the plastic from the
>common U.S. 2-liter soft drink bottles.  I chose this plastic because 
>it is so freely available.  The label identifies the plastic as "PETE".
>
>Can anyone tell me what this plastic is, and what a good glue for it
>would be?  Typical model cement for polystyrene plastic doesn't stick
>to it and just peels off.  Other glues I've tried, including epoxy, do
>mostly the same.  Any suggestions?  Thanks.
>
>- Alan
>-- 
>----                                                     ,,,,  
>Alan Millar       amillar@bolis.SF-Bay.org            __oo  \  
>                                                        =___/  
>But Moses said "Oh, Lord, please send someone else to do it." -Exo. 4:13

I use pieces of a plastic Coke bottle as a wing-tip protector on the 
FAI Team Race models I fly. (Control Line model airplanes, for those who
might not know what I'm into 8-{)

I roughen the PETE with some 100 grit sandpaper and use the thick CA to
glue it to the underside of the wingtip. Seems to work quite well, I've
never had a piece come off.

Regards,

Bill Lee
Newsgroups: sci.chem
From: fjchang@csie.nctu.edu.tw (Chang Fuh-Jyi)
Subject: looking for email address of Chem Dept
Organization: National Chiao Tung University
X-Newsreader: Tin 1.1 PL3
Date: Fri, 18 Dec 1992 03:12:22 GMT

Hi,
     I am eager to know email addresses of the Chemistry Department of any 
university at US. In fact, I am helping my friend who is a senior and majors 
in chemistry.  She wants to study in US after she graduates from the university
next year.  Thus, what I am looking for is email address of anyone who can answer 
me some question about his/her department and, perhaps and hopefully, send me 
the application material.

     Also, I want to know how much does it cost a graduate student to study in
US for two years. If you are a graduate student, could you tell me how much 
you spend per year, which city you live in (living in your campus dorm., or  
in an apartment), how life and climate are there?  Any information or whatever
suggested is greatly appreciated.

     Thanks for your help.

                    Chang Fuh-Jyi
                    National Chiao-Tung University

                    email address : fjchang@oodelta.csie.nctu.edu.tw
                                    7817069@csie.nctu.edu.tw
                                    u7817069@ccsun11.cc.ncut.edu.tw
Xref: sparky sci.cryonics:732 news.answers:4823
From: mhardee@britannic.East.Sun.COM (Martin Hardee - SunSoft Boston USA)
Newsgroups: sci.cryonics,rec.arts.disney
Subject: Re: walt disney's present temperature
Date: 22 Dec 1992 15:42:08 GMT
Organization: Sun Microsystems, Inc.
Distribution: world
Reply-To: mhardee@britannic.East.Sun.COM
NNTP-Posting-Host: britannic.east.sun.com

   	What of Walt Disney?  Why is his condition not publicized
   	in the sci.cryonics FAQ?  

	...

	Does anyone know where his tombstone is?  
	Has anyone actually seen it?

According to the unofficial biography "Disney's World" by Leonard
Mosley, soon after his death the company announced that Disney had been
cremated and was interred at Forest Lawn Memorial Park in Glendale,
CA.  

The "Walt is frozen" rumors stemmed from a number of coincidences:

	- The graveness of Walt's illness was kept a secret from
	  everyone except family and a few close friends

	- Walt was obsessed with his dreams for EPCOT, and was convinced 
	  that the project would die or be mangled after his death [and today's
	  EPCOT is surely not the "Experimental Prototype Community" that Walt
	  envisioned]

	- Some close colleagues have said that Walt was fascinated with
	  cryogenesis in the months before his death, and his two ace
	  EPCOT researchers, Marv Davis and General William Potter,
	  had been collecting reports on cryonics as part of their
	  secret EPCOT work for Walt

	- There was no funeral, and the announcement of his death 
	  was delayed and very brief.

Of course, many argue that the scheduling of the announcement had more to
do with the company's fears about stock market reaction than it did
with any secret plans to preserve Walt.

Whatever the truth, it's a great Urban Legend.




	

	
Newsgroups: sci.cryonics
From: kqb@cbnewsl.cb.att.com (kevin.q.brown)
Subject: Re: Cryoprotectant Issues
Organization: AT&T Bell Laboratories
Date: Tue, 22 Dec 1992 21:16:38 GMT
X-Crossposted-To: cryonics mailing list

    ------------------------ Forwarded Message ------------------------

> From:	Ben Best <ben.best@canrem.com>
> Date:	Mon, 21 Dec 1992 19:00:00 -0500
> Message-Subject: more on cryoprotectants

ERRATA AGAIN: Garret Smyth is correct, I meant "emulsion", not
              "suspension". (Double-entendres cloud the mind.)

     Canada Remote Systems, my network host, periodically delays
my USENET messages several days and then sends them to me in a
batch -- which slows down my response time. (This is an excuse, not
an apology.) In any case, my CRYONET dialogue about cryopreservation
seems to be winding-down. I need to study the literature more and
formulate my thoughts before doing any more mouthing-off -- and I will
attempt to crystallize this effort in an article in the Winter issue
of CANADIAN CRYONICS NEWS. But a few parting thoughts:

    REPLY TO MIKE DARWIN

     I am not suggesting that theorizing is a substitute for research,
but it can help research to ask the right questions. Thank you for your
comments about dehydration damage as opposed to freezing damage, but
since we don't know what structures are the most essential to preserve,
can we really be sure that 6M glycerol is better than 4M? In Greg Fahy's
December 1991 CRYONICS article he comments that 6M glycerol "has
produced either superb preservation or preservation marred by massive
cellular dehydration, depending on the glycerolization technique." What
technique avoids dehydration? I have been fantasizing about using a
chemical to accompany glycerol which would cause non-destructive
puncturing of cell membranes -- thereby allowing easy perfusion.

   I can't comment on Suda's data, since I haven't seen it. But if
Greg is in possession of it, why can't you (or I) get a copy?

   Greg's vitrification solution of DMSO, propylene glycol and
formamide sounds more appealing than DMSO alone, but I'm still
wondering why he excluded glycerol. If my theory of high perfusion with
low molecular weight is correct, formamide (HCONH2) with a molecular
weight of 45 would be excellent. Greg sounds so awesomely confident in
CRYOMSG 486 when he says "I may or may not be able to work out a
technique for vitrifying the brain, but I can certainly reduce ice
crystal growth enough to preclude structural damage, which would be
good enough." If he is right, why isn't implementing his techniques
the NUMBER ONE priority of cryonics research? Did he make his statement
before discovering that his DMSO-propylene glycol-formamide mixture only
vitrified the grey matter of dog's brains, and not the white matter? It
sounds to me as if what is needed the most is a low molecular weight
lipophilic cryoprotectant that can be added to Greg's mixture to
protect the white matter.

                    -- Ben Best (ben.best%canrem@uunet.ca)
--
Canada Remote Systems  - Toronto, Ontario
World's Largest PCBOARD System - 416-629-7000/629-7044
Xref: sparky sci.cryonics:731 news.answers:4822
From: evans@ec.ecn.purdue.edu (Ethan Z Evans)
Subject: A shock in the mail...
Keywords: magazine article
Organization: Purdue University Engineering Computer Network
Date: Wed, 23 Dec 1992 20:28:51 GMT

Hello again everyone.

	So yesterday I posted about a small blurb in time.  Today, Omni comes
in the mail and what is on the front cover but "Win Immortality! $100,000
Cryonics Contest."

	Now to those of you closely connected to Alcor, perhaps the fact that
they are cosponsoring a contest for a free suspension along with Omni is not
surprising.  But I have routinely read this news group for six months and
haven't seen a word about this being planned or upcomming.

	In any case, the article accompanying the contest is essentially a
well written version of the groups FAQ and puts forth cryonics in a fairly
major publication in a better light than I ever expected to see this century.
The article is by Charles Platt, who is aparently signed up for suspension and
covers the standard questions of feasibility and morality.

	So, my question to the Alcor insiders on this group would be what 
Alcor sees itself as getting out of this.  If they wanted positive publicity,
I would say that this is a brilliant coup.  The negative aspects of cryonics
are minimized and I think the average Omni reader will go away with a 
positive opinion.

Many thanks,
	Ethan Evans
	evans@ecn.purdue.edu


Xref: sparky sci.cryonics:730 news.answers:4821
From: kqb@cbnewsl.cb.att.com (kevin.q.brown)
Newsgroups: sci.cryonics
Subject: Sedatives and Neural Ischemia.
Date: 23 Dec 92 17:12:18 GMT
Organization: AT&T Bell Laboratories
X-Crossposted-To: cryonics mailing list


    ------------------------ Forwarded Message ------------------------

> Date: Wed, 23 Dec 1992 09:26:11 -0500
> From: Ken Stone <stone@eng.umd.edu>
> Message-Subject: Sedatives and Neural Ischemia.

Has anyone investigated the use of major sedatives to slow neural function 
immediately before clinical death?  

consider:

(1) The brain burns more oxygen than any other part of the body.
(2) Reduced neural activity has been shown to correspond to a significant
    reduction in oxygen consumption.
(3) Some sedatives significantly reduce neural activity.

I would imagine that a lot of ischemic damage during cool-down (and warm-up!)
could be avoided by infusing sodium pentothal (e.g.) into the blood before
cardio-vascular failure occurs.

Although the idea is not without its problems (complications with revival, 
added hassles from hostile coroners, etc.), I think the potential gains from
not having oxygen-starved neurons are pretty self-evident...

---Ken
Newsgroups: sci.cryonics
From: kqb@cbnewsl.cb.att.com (kevin.q.brown)
Subject: storage temp (Re: Cryoprotectant Issues)
Organization: AT&T Bell Laboratories
Date: Thu, 31 Dec 1992 16:40:43 GMT
X-Crossposted-To: cryonics mailing list

    ------------------------ Forwarded Message ------------------------

> Date: Thu, 24 Dec 92 01:14:29 CST
> From: Brian Wowk <wowk@ccu.UManitoba.CA>
> Message-Subject: CRYONICS: storage temps

Edgar Swank:
 
> The interest in LN2 is for long-term storage. Referring to Hugh
> Hixon's article from CRYOMSG 15, -80xC is clearly too warm for
> long-term storage (1 second of body temp decay takes 17 minutes).
 
> I would guess -164xC (L Methane) is the warmest useable (1 sec at body
> temp = 42 years) long-term storage temp.  LN2 is overkill (24 Million
> yrs.),  but is used because it's economical.
 
        The variation of reaction rate with temperature depends on the 
activation energy of the chemical reaction (see the Arrhenius equation).  In 
particular, if reaction A takes place 1000 times slower if we lower the 
temperature by a given amount, this does not mean reaction B will also slow 
by a factor of a 1000.  Reaction B might slow by a factor of 1,000,000 if its 
activation energy is higher than A's.
 
        As it turns out, Hugh Hixon chose one of the fastest chemical 
reactions known in nature as the benchmark for his article, "How Cold is Cold 
Enough?"  This was a conservative thing to do, but it can also be misleading.  
Practically all chemical reactions will slow by a much greater factor than 
the "1 second of body temp decay takes 17 minutes" (at -80'C) figure quoted 
by Mr. Swank.  Furthermore, at -130'C *all* chemical reaction rates go 
identically to zero inside cells.  At this temperature (TG, or the "glass 
transition temperature"), even the Arrhenius equation fails because any 
remaining liquid water inside cells becomes as solid as glass, rendering all 
reactants immobile.
 
        I agree with Edgar that -80'C is probably not good enough for 
centuries of storage.  (Believe it or not, at this temperature traces of 
unfrozen liquid water still exist inside cells.)  However, -130'C will do 
quite nicely for a very long time.
 
                                                --- Brian Wowk
Xref: sparky sci.cryonics:725 rec.arts.disney:7659
From: mross@crowe.seas.ucla.edu (Mark J. Ross)
Newsgroups: sci.cryonics,rec.arts.disney
Subject: Re: walt disney's present temperature
Date: 25 Dec 92 21:44:15 GMT
Followup-To: sci.cryonics
Organization: LASERAMA, usa

In article <1992Dec23.002245.12483@panix.com> habs@panix.com (Harry Shapiro) writes:
>
>Walt may well not be frozen, BUT at a exibit at the Disney location
>in Ca., they (the company) in the story about his life, indicated
>he had been frozen.
>I saw that exibit when I was there about 15 years about.

I've been sitting through the Walt Disney Story at Disneyland for
over 20 years, and I have never heard anything about Disney being 
frozen. 

Why don't some of you who think there is any possibility that Disney is
not kept at Forest Lawn, just across the freeway from the Studios, 
present solid evidence for your belief - like "I went to Forest Lawn
and their employees could find no record of a Walter E. Disney ever
being brought in," or "I dug under Sleeping Beauty's Castle and found
a giant refrigeration machine."
Xref: sparky sci.cryonics:736 news.answers:4832
From: tsf+@cs.cmu.edu (Timothy Freeman)
Newsgroups: sci.cryonics,news.answers
Subject: Cryonics FAQ 8: Communications
Summary: This posting contains a list of Frequently Asked Questions
   and their answers about cryonics, the practice of carefully preserving
   very recently clinically and legally dead people in hopes that they can be
   revived in the future.  It should be read
Date: 1 Jan 93 08:37:07 GMT
Article-I.D.: cs.part8_725877379
Expires: Sun, 14 Feb 1993 08:36:19 GMT
Followup-To: sci.cryonics
Organization: School of Computer Science, Carnegie Mellon
Supersedes: <part8_723198982@cs.cmu.edu>

Archive-name: cryonics-faq/part8

		      Section 8: Communications

(You can fetch cryomsg "n" by sending mail to kqb@whscad1.att.com or
to kevin.q.brown@att.com with the subject line "CRYOMSG n".  The index
to this FAQ list is cryomsg "0018.1".)

8-1.  How can I get more information?

Steve Bridge's "Introduction to Cryonics" gives a quick, three-page
overview of cryonics. This overview is cryomsg 972.

For a more detailed introduction, including a discussion of the
scientific evidence that freezing injury may be repairable, read the
booklet "Cryonics: Reaching for Tomorrow", which is available from the
Alcor Life Extension Foundation (Question 6-4 has the address).  The
first copy is free.  It also includes an extensive Question and Answer
section.

The books "Engines of Creation" and "Unbounding the Future", by
K. Eric Drexler, et al. describe nanotechnology (also called
molecular nanotechnology or molecular engineering).  This is the
kind of technology needed to revive anyone preserved with today's
methods of cryonic suspension.

The largest three suspension organizations each have newsletters.  For
contact information about on them, see the answer to Question 6-4.

8-2.  What is a cryomsg?  How do I fetch one?

There has been a cryonics mailing list since July 1988.
Cryomsg's are mostly the archived messages from this mailing list.  

To get a cryomsg, send mail to kqb@whscad1.att.com or to
kevin.q.brown@att.com with the subject "CRYOMSG nnn nnn" where the
nnn's are the numbers of the cryomsg's you want. Cryomsgs numbers
100, 200, ..., 900 have one line summaries of the preceding 100
cryomsg's.  Message number 0000 has a top level index, and message
number 0001 has the subjects of all of the messages.  Message 0004
has a list of cryonics suspension organizations and also
cryonics-related organizations and publications.  Message 0005 is
entitled "Suggested reference messages for new subscribers". 
Newsgroups: sci.cryonics,rec.arts.disney
From: habs@panix.com (Harry Shapiro)
Subject: Re: walt disney's present temperature
Date: Wed, 23 Dec 1992 00:22:45 GMT
Organization: PANIX Public Access Unix, NYC

In <1h7d0gINNsh@seven-up.East.Sun.COM> mhardee@britannic.East.Sun.COM (Martin Hardee - SunSoft Boston USA) writes:

>   	What of Walt Disney?  Why is his condition not publicized

>The "Walt is frozen" rumors stemmed from a number of coincidences:

>Of course, many argue that the scheduling of the announcement had more to
>do with the company's fears about stock market reaction than it did
>with any secret plans to preserve Walt.

>Whatever the truth, it's a great Urban Legend.


Walt may well not be frozen, BUT at a exibit at the Disney location
in Ca., they (the company) in the story about his life, indicated
he had been frozen.

I saw that exibit when I was there about 15 years about.
-- 
Harry Shapiro  				      habs@panix.com
List Administrator of the Extropy Institute Mailing List
Private Communication for the Extropian Community since 1991
From: kqb@cbnewsl.cb.att.com (kevin.q.brown)
Newsgroups: sci.cryonics
Subject: Re: Sedatives and Neural Ischemia.
Date: 23 Dec 92 21:27:47 GMT
Organization: AT&T Bell Laboratories
X-Crossposted-To: cryonics mailing list


    ------------------------ Forwarded Message ------------------------

> Message-Subject: CRYONICS Re: Sedatives
> Date: Wed, 23 Dec 92 12:52:30 EST
> From: Timothy_Freeman@U.ERGO.CS.CMU.EDU

Ken Stone <stone@eng.umd.edu> says:
>Has anyone investigated the use of major sedatives to slow neural function 
>immediately before clinical death?  

For legal reasons, the suspension team can't administer the sedatives
before legal death.  They do administer them after legal death,
though.  Maybe the attending physician could administer them at a
lower dose before legal death?  I have heard of people asking to be
sedated before death so they wouldn't have to deal with the pain, so
there is a precedent.  Has this been tried?  Cryonics magazine has
discussed other useful pre-death medications such as heavy vitamin E
supplementation; maybe sedatives should be on this list.  (Don't try
this at home, folks!)

Tim Freeman
Newsgroups: sci.cryonics