From ccl@www.ccl.net Mon May 19 07:43:21 1997 Received: from bedrock.ccl.net for ccl@www.ccl.net by www.ccl.net (8.8.3/950822.1) id HAA15616; Mon, 19 May 1997 07:11:06 -0400 (EDT) Received: from wchd18.chemie.uni-wuerzburg.de for s101264.k4.stud.uni-wuerzburg@wrzn12.rz.uni-wuerzburg.de by bedrock.ccl.net (8.8.3/950822.1) id HAA26291; Mon, 19 May 1997 07:11:02 -0400 (EDT) Received: from claessen (wex024.extern.uni-wuerzburg.de [132.187.248.24]) by wchd18.chemie.uni-wuerzburg.de (8.6.9/8.6.9) with SMTP id UAA26698; Mon, 19 May 1997 20:36:29 +0200 Message-Id: <199705191836.UAA26698@wchd18.chemie.uni-wuerzburg.de> Comments: Authenticated sender is From: "Rolf Claessen" To: chemconf@umdd.umd.edu, CHEMED-L@UWF.EDU, chemistry@ccl.net, CHMINF-L@LISTSERV.INDIANA.EDU, CICOURSE@iubvm.ucs.indiana.edu, orgchem@extreme.chem.rpi.edu, ysn@crow-t-robot.stanford.edu Date: Mon, 19 May 1997 13:06:24 +0000 MIME-Version: 1.0 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Subject: Online Chemistry Bookshop Reply-to: s101264@stud-mail.uni-wuerzburg.de Priority: normal X-mailer: Pegasus Mail for Win32 (v2.52) Online Chemistry Bookshop http://www.geocities.com/Tokyo/5243/book_en.htm In Association with Amazon.Com The biggest bilingual chemistry bookshop with more than 200 titles !! Often Amazon offers 10% discount. Tell me the missing titles! I will add them immediately to the list! The bookshop is a subsection of the bilingual Chemistry Index at http://www.geocities.com/Tokyo/5243/index.html Yours Rolf Claessen Rolf Claessen's Chemistry Index http://www.geocities.com/Tokyo/5243/index.htm From tcg@chem.unipune.ernet.in Mon May 19 09:43:22 1997 Received: from sangam.ncst.ernet.in for tcg@chem.unipune.ernet.in by www.ccl.net (8.8.3/950822.1) id JAA15957; Mon, 19 May 1997 09:15:41 -0400 (EDT) Received: from iucaa (iucaa.ernet.in [144.16.31.4]) by sangam.ncst.ernet.in (8.7.5) with SMTP id SAA06440 for ; Mon, 19 May 1997 18:53:08 +0530 (GMT+05:30) Received: from unipune.ernet.in by iucaa (5.65v3.2/SMI-4.1) id AA02665; Mon, 19 May 1997 18:43:39 +0500 Received: from chem.unipune.ernet.in by unipune.ernet.in (8.8.5/UNIPUNE-MAILHUB(02.04.97)) id SAA22136; Mon, 19 May 1997 18:43:20 -0500 (GMT) Received: by chem.unipune.ernet.in (8.7.5/SMI-SVR4) id SAA00483; Mon, 19 May 1997 18:53:47 -0500 Date: Mon, 19 May 1997 18:53:47 -0500 From: tcg@chem.unipune.ernet.in (Students of Dr. S.R. Gadre) Message-Id: <199705192353.SAA00483@chem.unipune.ernet.in> To: CHEMISTRY@www.ccl.net Subject: van der Waals radius Dear Sirs : Could someone give us van der Waals radius for Lithium, Boron , Chlorine, Fluorine and Oxygen atoms? Thanks. (We do have radii of some elements from this list..we will check consistency with your values)......Shridhar Gadre From merkle@parc.xerox.com Mon May 19 12:39:59 1997 Received: from alpha.xerox.com for merkle@parc.xerox.com by www.ccl.net (8.8.3/950822.1) id LAA16333; Mon, 19 May 1997 11:09:49 -0400 (EDT) Received: from manarken.parc.xerox.com ([13.2.116.21]) by alpha.xerox.com with SMTP id <16657(2)>; Mon, 19 May 1997 08:09:20 PDT Received: by manarken.parc.xerox.com id <12177>; Mon, 19 May 1997 08:09:01 PDT From: Ralph Merkle To: chemistry@www.ccl.net Subject: Feynman's 1959 talk on the web Cc: merkle@parc.xerox.com Message-Id: <97May19.080901pdt."12177"@manarken.parc.xerox.com> Date: Mon, 19 May 1997 08:09:01 PDT "E. Lewars" said: > Someone recently asked about nanotechnology --how seriously should we take it? > For a paper and some refs see Angewande Chemie, Int. Ed. English, > 1997, 36(6), 585-587. The idea of nanotechnology seems to begin, in its > popular modern incarnation anyway, with the Nobel-prizewinning physicist > Richard Feynman (of quantum electrodynamics and Feynman diagrams) in a > lecture around 1960 and his 1961 book (ref 1 in the paper). Feynman's 1959 talk, published in the February 1960 issue of Caltech's Engineering and Science, is available on the web at http://nano.xerox.com/nanotech/feynman.html In his talk, Feynman said: But I am not afraid to consider the final question as to whether, ultimately---in the great future---we can arrange the atoms the way we want; the very atoms, all the way down! What would happen if we could arrange the atoms one by one the way we want them (within reason, of course; you can't put them so that they are chemically unstable, for example). Up to now, we have been content to dig in the ground to find minerals. We heat them and we do things on a large scale with them, and we hope to get a pure substance with just so much impurity, and so on. But we must always accept some atomic arrangement that nature gives us. We haven't got anything, say, with a "checkerboard" arrangement, with the impurity atoms exactly arranged 1,000 angstroms apart, or in some other particular pattern. What could we do with layered structures with just the right layers? What would the properties of materials be if we could really arrange the atoms the way we want them? They would be very interesting to investigate theoretically. I can't see exactly what would happen, but I can hardly doubt that when we have some control of the arrangement of things on a small scale we will get an enormously greater range of possible properties that substances can have, and of different things that we can do. From U63292@UICVM.UIC.EDU Mon May 19 19:43:26 1997 Received: from UICVM.UIC.EDU for U63292@UICVM.UIC.EDU by www.ccl.net (8.8.3/950822.1) id TAA19806; Mon, 19 May 1997 19:36:22 -0400 (EDT) Message-Id: <199705192336.TAA19806@www.ccl.net> Received: from UICVM.UIC.EDU by UICVM.UIC.EDU (IBM VM SMTP V2R2) with BSMTP id 1077; Mon, 19 May 97 18:36:16 CDT Received: from UICVM (NJE origin U63292@UICVM) by UICVM.UIC.EDU (LMail V1.2a/1.8a) with BSMTP id 7009; Mon, 19 May 1997 18:36:16 -0500 Date: Mon, 19 May 97 18:35:19 CDT From: Prabha Venkatarangan Subject: Subsciption To: chemistry@www.ccl.net I would like to subscribe your services.