[NatureNS] Radioactive decay

From: David & Alison Webster <dwebster@glinx.com>
To: naturens@chebucto.ns.ca
References: <0A03AF360B4F4750B5314E9731101B6E@D58WQPH1>
Date: Mon, 03 Mar 2014 14:03:31 -0400
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Thanks Patirck & Larry,                        Mar 3, 2014
    It was an article about black holes (March National Geograohic) that =
got me wondering if radioactive decay in the vicinity of an event =
horizon would be slowed. This being an example of extreme gravity I =
gather that the answer would be yes.

    Manipulation of some 'constant' property like half-life by =
accellaration to high speed is a convincing doubt-remover. I had no idea =
that this was now possible.

    I suppose (perhaps incorrectly) that the slowing of time at extreme =
speed or extreme gravity can be viewed as an increase in resistance to =
change at the molecular or sub-molecular level, i.e. an increase in =
resistance to change in motion at high speed or to change in postiton at =
high gravity. =20

    In any case, can the slowing of time by extremes of speed or gravity =
be offset to some extent by increases in temperature ?

Yours truly, Dave Webster
   =20
  ----- Original Message -----=20
  From: Patrick Kelly=20
  To: <naturens@chebucto.ns.ca>=20
  Sent: Sunday, March 02, 2014 10:26 PM
  Subject: Re: [NatureNS] Radioactive decay


  It would be, but here on Earth increasing the gravity enough to make a =
noticeable difference is not really an option.=20


  On the other hand, there is another way to do it which is quite =
commonly used, especially for isotopes with really short halflives. Once =
made, you put them in a particle accelerator (like a cyclotron) and keep =
them moving at almost the speed of light. That slows down time for the =
particles and keeps then around long enough for them to be beamed from =
the cyclotron when needed.  At 99.5% the speed of light, time slows down =
by a factor of 10.


  Pat


  On Mar 2, 2014, at 7:24 PM, David & Alison Webster wrote:


    Dear All,                                Mar 2, 2014
      Is the rate of radioactive decay (half life) affected by gravity; =
slower as gravity increases ?

    Yt, Dave Webster, Kentville=20




  =
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  Patrick Kelly

  Director of Computer Facilities

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  Faculty of Architecture and Planning

  Dalhousie University

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  Canada                                 Canada

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<META content=3D"text/html; charset=3Diso-8859-1" =
http-equiv=3DContent-Type>
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<DIV>Thanks Patirck &amp; Larry,&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;=20
&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; =
&nbsp;&nbsp;&nbsp; Mar=20
3, 2014</DIV>
<DIV>&nbsp;&nbsp;&nbsp; It was an article about black holes (March =
National=20
Geograohic) that got me wondering if radioactive decay in the vicinity=20
of&nbsp;an event horizon would be slowed. This being an example of =
extreme=20
gravity I gather that the answer would&nbsp;be yes.</DIV>
<DIV>&nbsp;</DIV>
<DIV>&nbsp;&nbsp;&nbsp; Manipulation of some 'constant' property like =
half-life=20
by accellaration to high speed is a convincing doubt-remover. I had no =
idea that=20
this was now possible.</DIV>
<DIV>&nbsp;</DIV>
<DIV>&nbsp;&nbsp;&nbsp; I suppose (perhaps incorrectly) that the slowing =
of time=20
at extreme speed or extreme gravity&nbsp;can be viewed as&nbsp;an =
increase in=20
resistance to change at the molecular or sub-molecular level, i.e. an =
increase=20
in resistance to change in motion at high speed or to change in postiton =
at high=20
gravity.&nbsp; </DIV>
<DIV>&nbsp;</DIV>
<DIV>&nbsp;&nbsp;&nbsp; In any case, can the slowing of time by extremes =
of=20
speed or gravity be offset to some extent by increases in temperature =
?</DIV>
<DIV>&nbsp;</DIV>
<DIV>Yours truly, Dave Webster</DIV>
<DIV>&nbsp;&nbsp;&nbsp; </DIV>
<BLOCKQUOTE=20
style=3D"BORDER-LEFT: #000000 2px solid; PADDING-LEFT: 5px; =
PADDING-RIGHT: 0px; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px"=20
dir=3Dltr>
  <DIV style=3D"FONT: 10pt arial">----- Original Message ----- </DIV>
  <DIV=20
  style=3D"FONT: 10pt arial; BACKGROUND: #e4e4e4; font-color: =
black"><B>From:</B>=20
  <A title=3DPatrick.Kelly@Dal.Ca =
href=3D"mailto:Patrick.Kelly@Dal.Ca">Patrick=20
  Kelly</A> </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>To:</B> <A =
title=3Dnaturens@chebucto.ns.ca=20
  =
href=3D"mailto:naturens@chebucto.ns.ca>">&lt;naturens@chebucto.ns.ca&gt;<=
/A>=20
  </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Sunday, March 02, 2014 =
10:26=20
  PM</DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Subject:</B> Re: [NatureNS] =
Radioactive=20
  decay</DIV>
  <DIV><BR></DIV>It wou