[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: North by Northwest to Catch a Neutrino in the Act
The statement is in fact incorrect, and in conflict with numerous
publications. X-rays were discovered by Roentgen on November 8, 1895, when
he noticed the fluorescence from a barium platinocyanide screen in his
laboratory. Fogging of photographic emulsions had been noted by others,
notably Sir William Crookes, who experimented with cathode ray tubes, and an
unintentional x-ray picture of some coins was made in the laboratory of
Professor William Goodspeed at the University of Pennsylvania in 1890.
However, no one recognized the cause of the fogging until Roentgen made his
now famous observation.
Yes, Bruce, you are correct about the cloudy days. Henri Becquerel believed
that the active property associated with uranium ore was produced by
exposure of the mineral ore to sunlight. Because of the overcast, he was
unable to do this, and developed the plates anyway, noting the fogging.
There are many excellent histories that describe these discoveries in more
detail including some papers in Health Physics and the Radiology Centennial
book on Radiation Physics.
Ron Kathren
-----Original Message-----
From: Heinmiller, Bruce <heinmillerb@aecl.ca>
To: Multiple recipients of list <radsafe@romulus.ehs.uiuc.edu>
Date: Monday, August 30, 1999 12:12 PM
Subject: RE: North by Northwest to Catch a Neutrino in the Act
>This message is in MIME format. Since your mail reader does not understand
>this format, some or all of this message may not be legible.
>
>------_=_NextPart_001_01BEF31B.05256490
>Content-Type: text/plain
>
>The statement quoted below appears in the NASA site, and I think it's
>incorrect. Wasn't the real "accident" a case of too much cloud cover one
>day in Paris? Paul Frame, are you out there to adjudicate here?
>
>Bruce Heinmiller
>heinmillerb@aecl.ca
>
>"Photographic emulsions are the world's oldest radiation detection
>technique, dating back to 1896 when Henri Becquerel discovered radiation
>when he accidentally left a piece of uranium ore atop some fresh film."
>
>
> ----------
> From: Carroll, R.G. (Sandy)[SMTP:carrollrg@pgdp.usec.com]
> Reply To: radsafe@romulus.ehs.uiuc.edu
> Sent: Monday, August 30, 1999 2:01 PM
> To: Multiple recipients of list
> Subject: FW: North by Northwest to Catch a Neutrino in the Act
>
> This might be of some interest to Radsafers.
>
> -----Original Message-----
> From: NASA Science News [mailto:expressnews@sslab.msfc.nasa.gov]
> Sent: Monday, August 30, 1999 12:01 AM
> To: express-delivery@sslab.msfc.nasa.gov
> Subject: North by Northwest to Catch a Neutrino in the Act
>
>
> NASA Space Science News for August 30, 1999
>
> Film emulsions may help determine if elusive particles change "flavor"
> as they travel: A century-old radiation detection tool may be pressed into
> service to see if neutrinos change flavor. The answer may change our
> models
> of
> subatomic particles and the universe. Full Story at
>
> http://science.nasa.gov/newhome/headlines/ast30aug99_1.htm
>
> <A HREF="http://science.nasa.gov/newhome/headlines/ast30aug99_1.htm";>
> link for AOL users</a>
>
>
>
> ============================================================
> You are subscribed to NASA's Space Science News mail server.
> This is a free service.
>
> To add, remove, or change your address on this service,
> go to
>
> http://science.nasa.gov/news/subscribe.htm
>
> <a href="http://science.nasa.gov/news/subscribe.htm";>
> Link for AOL users</a>.
> ============================================================
>
> Linda Porter
> Code SD23
> Science Systems Department
> NASA/Marshall Space Flight Center
> Huntsville AL 35812
>
> (256)544-7588
> (256)544-7128 (fax)
> linda.porter@msfc.nasa.gov
>
> http://science.nasa.gov/
> ************************************************************************
> The RADSAFE Frequently Asked Questions list, archives and subscription
> information can be accessed at http://www.ehs.uiuc.edu/~rad/radsafe.html
>
>
>------_=_NextPart_001_01BEF31B.05256490
>Content-Type: text/html
>Content-Transfer-Encoding: quoted-printable
>
><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN">
><HTML>
><HEAD>
><META HTTP-EQUIV=3D"Content-Type" CONTENT=3D"text/html; =
>charset=3Dus-ascii">
><META NAME=3D"Generator" CONTENT=3D"MS Exchange Server version =
>5.5.2448.0">
><TITLE>RE: North by Northwest to Catch a Neutrino in the Act</TITLE>
></HEAD>
><BODY>
>
><P><FONT FACE=3D"Times New Roman">The statement quoted below appears in =
>the NASA site, and I think it's incorrect. Wasn't the real =
>"accident" a case of too much cloud cover one day in =
>Paris? Paul Frame, are you out there to adjudicate =
>here?</FONT></P>
>
><P><FONT FACE=3D"Times New Roman">Bruce Heinmiller</FONT>
><BR><FONT FACE=3D"Times New Roman">heinmillerb@aecl.ca</FONT>
></P>
>
><P><FONT FACE=3D"Times New Roman">"Photographic emulsions are the =
>world's oldest radiation detection technique, dating back to 1896 when =
>Henri Becquerel discovered radiation when he accidentally left a piece =
>of uranium ore atop some fresh film."</FONT></P>
><BR>
><UL>
><P><FONT SIZE=3D1 FACE=3D"MS Sans Serif">----------</FONT>
><BR><B><FONT SIZE=3D1 FACE=3D"MS Sans Serif">From:</FONT></B> =
><FONT SIZE=3D1 FACE=3D"MS Sans Serif">Carroll, R.G. =
>(Sandy)[SMTP:carrollrg@pgdp.usec.com]</FONT>
><BR><B><FONT SIZE=3D1 FACE=3D"MS Sans Serif">Reply To:</FONT></B> =
> <FONT SIZE=3D1 FACE=3D"MS Sans =
>Serif">radsafe@romulus.ehs.uiuc.edu</FONT>
><BR><B><FONT SIZE=3D1 FACE=3D"MS Sans Serif">Sent:</FONT></B> =
><FONT SIZE=3D1 FACE=3D"MS Sans Serif">Monday, August 30, 1999 2:01 =
>PM</FONT>
><BR><B><FONT SIZE=3D1 FACE=3D"MS Sans Serif">To:</FONT></B> =
> <FONT SIZE=3D1 FACE=3D"MS Sans Serif">Multiple =
>recipients of list</FONT>
><BR><B><FONT SIZE=3D1 FACE=3D"MS Sans Serif">Subject:</FONT></B> =
> <FONT SIZE=3D1 FACE=3D"MS Sans =
>Serif">FW: North by Northwest to Catch a Neutrino in the Act</FONT>
></P>
>
><P><FONT SIZE=3D2 FACE=3D"Arial">This might be of some interest to =
>Radsafers.</FONT>
></P>
>
><P><FONT SIZE=3D2 FACE=3D"Arial">-----Original Message-----</FONT>
><BR><FONT SIZE=3D2 FACE=3D"Arial">From: NASA Science News =
>[</FONT><U><FONT COLOR=3D"#0000FF" SIZE=3D2 FACE=3D"Arial"><A =
>HREF=3D"mailto:expressnews@sslab.msfc.nasa.gov";>mailto:expressnews@sslab=
>.msfc.nasa.gov</A></FONT></U><FONT SIZE=3D2 FACE=3D"Arial">] </FONT>
><BR><FONT SIZE=3D2 FACE=3D"Arial">Sent: Monday, August 30, 1999 12:01 =
>AM</FONT>
><BR><FONT SIZE=3D2 FACE=3D"Arial">To: =
>express-delivery@sslab.msfc.nasa.gov</FONT>
><BR><FONT SIZE=3D2 FACE=3D"Arial">Subject: North by Northwest to Catch =
>a Neutrino in the Act</FONT>
></P>
><BR>
>
><P><FONT SIZE=3D2 FACE=3D"Arial">NASA Space Science News for August 30, =
>1999</FONT>
></P>
>
><P><FONT SIZE=3D2 FACE=3D"Arial">Film emulsions may help determine if =
>elusive particles change "flavor" </FONT>
><BR><FONT SIZE=3D2 FACE=3D"Arial">as they travel: A century-old =
>radiation detection tool may be pressed into</FONT>
><BR><FONT SIZE=3D2 FACE=3D"Arial">service to see if neutrinos change =
>flavor. The answer may change our models</FONT>
><BR><FONT SIZE=3D2 FACE=3D"Arial">of</FONT>
><BR><FONT SIZE=3D2 FACE=3D"Arial">subatomic particles and the universe. =
>Full Story at</FONT>
></P>
>
><P><U><FONT COLOR=3D"#0000FF" SIZE=3D2 FACE=3D"Arial"><A =
>HREF=3D"http://science.nasa.gov/newhome/headlines/ast30aug99_1.htm"; =
>TARGET=3D"_blank">http://science.nasa.gov/newhome/headlines/ast30aug99_1=
>.htm</A></FONT></U>
></P>
>
><P><FONT SIZE=3D2 FACE=3D"Arial"><A HREF=3D"</FONT><U><FONT =
>COLOR=3D"#0000FF" SIZE=3D2 FACE=3D"Arial"><A =
>HREF=3D"http://science.nasa.gov/newhome/headlines/ast30aug99_1.htm"; =
>TARGET=3D"_blank">http://science.nasa.gov/newhome/headlines/ast30aug99_1=
>.htm</A></FONT></U><FONT SIZE=3D2 FACE=3D"Arial">"></FONT>
><BR><FONT SIZE=3D2 FACE=3D"Arial"> link for AOL =
>users</a></FONT>
></P>
><BR>
><BR>
>
><P><FONT SIZE=3D2 =
>FACE=3D"Arial">=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
>=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
>=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D</FONT>
><BR><FONT SIZE=3D2 FACE=3D"Arial">You are subscribed to NASA's Space =
>Science News mail server. </FONT>
><BR><FONT SIZE=3D2 FACE=3D"Arial">This is a free service. </FONT>
></P>
>
><P><FONT SIZE=3D2 FACE=3D"Arial">To add, remove, or change your address =
>on this service,</FONT>
><BR><FONT SIZE=3D2 FACE=3D"Arial">go to </FONT>
></P>
>
><P><FONT SIZE=3D2 FACE=3D"Arial"> </FONT><U> =
><FONT COLOR=3D"#0000FF" SIZE=3D2 FACE=3D"Arial"><A =
>HREF=3D"http://science.nasa.gov/news/subscribe.htm"; =
>TARGET=3D"_blank">http://science.nasa.gov/news/subscribe.htm</A></FONT><=
>/U>
></P>
>
><P><FONT SIZE=3D2 FACE=3D"Arial"><a href=3D"</FONT><U><FONT =
>COLOR=3D"#0000FF" SIZE=3D2 FACE=3D"Arial"><A =
>HREF=3D"http://science.nasa.gov/news/subscribe.htm"; =
>TARGET=3D"_blank">http://science.nasa.gov/news/subscribe.htm</A></FONT><=
>/U><FONT SIZE=3D2 FACE=3D"Arial">"></FONT>
><BR><FONT SIZE=3D2 FACE=3D"Arial">Link for AOL users</a>.</FONT>
><BR><FONT SIZE=3D2 =
>FACE=3D"Arial">=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
>=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
>=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D</FONT>
></P>
>
><P><FONT SIZE=3D2 FACE=3D"Arial">Linda Porter</FONT>
><BR><FONT SIZE=3D2 FACE=3D"Arial">Code SD23</FONT>
><BR><FONT SIZE=3D2 FACE=3D"Arial">Science Systems Department</FONT>
><BR><FONT SIZE=3D2 FACE=3D"Arial">NASA/Marshall Space Flight =
>Center</FONT>
><BR><FONT SIZE=3D2 FACE=3D"Arial">Huntsville AL 35812</FONT>
></P>
>
><P><FONT SIZE=3D2 FACE=3D"Arial">(256)544-7588</FONT>
><BR><FONT SIZE=3D2 FACE=3D"Arial">(256)544-7128 (fax)</FONT>
><BR><FONT SIZE=3D2 FACE=3D"Arial">linda.porter@msfc.nasa.gov</FONT>
></P>
>
><P><U><FONT COLOR=3D"#0000FF" SIZE=3D2 FACE=3D"Arial"><A =
>HREF=3D"http://science.nasa.gov/"; =
>TARGET=3D"_blank">http://science.nasa.gov/</A></FONT></U>
><BR><FONT SIZE=3D2 =
>FACE=3D"Arial">*********************************************************=
>***************</FONT>
><BR><FONT SIZE=3D2 FACE=3D"Arial">The RADSAFE Frequently Asked =
>Questions list, archives and subscription</FONT>
><BR><FONT SIZE=3D2 FACE=3D"Arial">information can be accessed =
>at</FONT><U> <FONT COLOR=3D"#0000FF" SIZE=3D2 FACE=3D"Arial"><A =
>HREF=3D"http://www.ehs.uiuc.edu/~rad/radsafe.html"; =
>TARGET=3D"_blank">http://www.ehs.uiuc.edu/~rad/radsafe.html</A></FONT></=
>U>
></P>
></UL>
></BODY>
></HTML>
>------_=_NextPart_001_01BEF31B.05256490--
>************************************************************************
>The RADSAFE Frequently Asked Questions list, archives and subscription
>information can be accessed at http://www.ehs.uiuc.edu/~rad/radsafe.html
************************************************************************
The RADSAFE Frequently Asked Questions list, archives and subscription
information can be accessed at http://www.ehs.uiuc.edu/~rad/radsafe.html