November 25, 2011 Copyright 2011 Lattice Energy LLC All rights reserved Page 1 Subject : were LENRs observed in the early 1950s? Einstein and Bethe got involved in this saga Dear Readers: You may really enjoy reading this amazing tale of a brilliant LENR-related experimental discovery back in 1951 --- followed by its descent into total obscurity. Simply lost and forgotten by mainstream physics. In the history of science, it seems that experimental results that don't somehow fit within some sort of contemporary conceptual paradigm often tend to get ignored. Sadly, in many cases such results are never reported anywhere in peer-reviewed journals for posterity. In that regard, this cover note is combined with scanned page images from Chapter 6 in Dr. Ernest Sternglass' little 1997 book, “Before the Big Bang - the Origin of the Universe.” The excerpted page scans from the above book chapter are those in which Dr. Sternglass describes some enigmatic experiments that he conducted in the Cornell University physics department back in the early 1950s.It recounts his work with an old hydrogen-filled X-ray tube, as well as a subsequent dialogue with Albert Einstein in attempting to understand the (then) utterly inexplicable experimental results. Seven years ago, Sternglass, then in his late 80s, told me over the telephone that (before he had communicated with Einstein about his strange results) the legendary Hans Bethe had looked over his experimental data and was totally baffled too. Nobody at Cornell understood what was happening in the experimental setup that could possibly produce the observed fluxes of neutrons (obviously, ultra low momentum neutrons were not produced in his experiments --- they were more akin to what happens in high-current exploding wires as opposed to what happens in typical P&F aqueous electrolytic cells). So, a baffled Bethe called Einstein on the telephone and asked him to help PhD candidate Sternglass evaluate his unexpected experimental results. The attached chapter taken from Sternglass' book relates that story. What is truly mind boggling about this tale is that Einstein simply looked at Sternglass' data and then immediately realized that the observed neutron production must involve some sort of many-body collective effects with electrons (which we utilize with great explanatory power in our theory of LENRs). Can you believe it --- what a mind Einstein had ---- even at that late stage in his life! At that point (1951), very few physicists really had any idea of what collective effects were about. Well, Einstein surely did. Unfortunately, Ernest's bizarre experimental discovery was simply not pursued any further. In the end, Sternglass didn't heed Einstein's (and Bethe's) strong advice to "be stubborn" and publish the deeply anomalous results. Sternglass' experiments were subsequently lost and largely forgotten by other physicists in the ensuing years, just like the work of chemists Wendt and Irion at the University of Chicago back in 1922 and other related transmutation work published in refereed journals circa 1900 - 1927. Einstein, the only contemporary scientist who had any real inkling of what might be happening in Sternglass' puzzling experiments, died just four years after his interaction with Sternglass on the unexplained neutron fluxes. The only surviving document wherein these intriguing experimental results were ever mentioned was Sternglass' little book published many years later in 1997. In 2006, I stumbled across a copy of it in the $2.99 discount section at Border's bookstore and, curious, just for kicks picked it up to read over the weekend. After reading an amazing chapter (see scanned pages), I immediately called my theoretical collaborators and said, "You guys won't believe what I just found." They were equally amazed. We plan to specifically discuss and explain the 1951 Sternglass/Bethe/Einstein saga in an upcoming paper; it appears that this experimental anomaly is just another aspect of LENRs. Perhaps now, after remaining in obscurity for 60 years, there can finally be some conceptual closure on Sternglass’ long-lost, unpublished experimental results.
18
Embed
Lattice Energy LLC-LENRs ca 1950s-Sternglass Expts-Einstein & Bethe-Nov 25 2011
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
November 25, 2011
Copyright 2011 Lattice Energy LLC All rights reserved Page 1
Subject: were LENRs observed in the early 1950s? Einstein and Bethe got involved in this saga Dear Readers: You may really enjoy reading this amazing tale of a brilliant LENR-related experimental discovery back in 1951 --- followed by its descent into total obscurity. Simply lost and forgotten by mainstream physics. In the history of science, it seems that experimental results that don't somehow fit within some sort of contemporary conceptual paradigm often tend to get ignored. Sadly, in many cases such results are never reported anywhere in peer-reviewed journals for posterity. In that regard, this cover note is combined with scanned page images from Chapter 6 in Dr. Ernest Sternglass' little 1997 book, “Before the Big Bang - the Origin of the Universe.” The excerpted page scans from the above book chapter are those in which Dr. Sternglass describes some enigmatic experiments that he conducted in the Cornell University physics department back in the early 1950s.It recounts his work with an old hydrogen-filled X-ray tube, as well as a subsequent dialogue with Albert Einstein in attempting to understand the (then) utterly inexplicable experimental results. Seven years ago, Sternglass, then in his late 80s, told me over the telephone that (before he had communicated with Einstein about his strange results) the legendary Hans Bethe had looked over his experimental data and was totally baffled too. Nobody at Cornell understood what was happening in the experimental setup that could possibly produce the observed fluxes of neutrons (obviously, ultra low momentum neutrons were not produced in his experiments --- they were more akin to what happens in high-current exploding wires as opposed to what happens in typical P&F aqueous electrolytic cells). So, a baffled Bethe called Einstein on the telephone and asked him to help PhD candidate Sternglass evaluate his unexpected experimental results. The attached chapter taken from Sternglass' book relates that story. What is truly mind boggling about this tale is that Einstein simply looked at Sternglass' data and then immediately realized that the observed neutron production must involve some sort of many-body collective effects with electrons (which we utilize with great explanatory power in our theory of LENRs). Can you believe it --- what a mind Einstein had ---- even at that late stage in his life! At that point (1951), very few physicists really had any idea of what collective effects were about. Well, Einstein surely did. Unfortunately, Ernest's bizarre experimental discovery was simply not pursued any further. In the end, Sternglass didn't heed Einstein's (and Bethe's) strong advice to "be stubborn" and publish the deeply anomalous results. Sternglass' experiments were subsequently lost and largely forgotten by other physicists in the ensuing years, just like the work of chemists Wendt and Irion at the University of Chicago back in 1922 and other related transmutation work published in refereed journals circa 1900 - 1927. Einstein, the only contemporary scientist who had any real inkling of what might be happening in Sternglass' puzzling experiments, died just four years after his interaction with Sternglass on the unexplained neutron fluxes. The only surviving document wherein these intriguing experimental results were ever mentioned was Sternglass' little book published many years later in 1997. In 2006, I stumbled across a copy of it in the $2.99 discount section at Border's bookstore and, curious, just for kicks picked it up to read over the weekend. After reading an amazing chapter (see scanned pages), I immediately called my theoretical collaborators and said, "You guys won't believe what I just found." They were equally amazed. We plan to specifically discuss and explain the 1951 Sternglass/Bethe/Einstein saga in an upcoming paper; it appears that this experimental anomaly is just another aspect of LENRs. Perhaps now, after remaining in obscurity for 60 years, there can finally be some conceptual closure on Sternglass’ long-lost, unpublished experimental results.
November 25, 2011
Copyright 2011 Lattice Energy LLC All rights reserved Page 2
Besides the 1950s-era Sternglass affair, we heard the following story from one of the former graduate students who was directly involved in some amazing experiments: specifically, in the mid-1960s, unexpected neutron production was observed in comparatively low temperature, RF-excited (dusty) deuterium plasma experiments jointly conducted at the University of Florida by the EE and nuclear engineering departments. The well-documented experimental results were so bizarre (significant unexplained neutron fluxes, "heat-after-death" after the electrical power was completely turned-off, etc.) that in the end, the graduate students and faculty involved in the work decided not to even try to publish their work in a refereed journal. It was deemed too controversial and potentially risky for all of their careers. Yes, this could potentially be yet another aspect of LENRs. Incredibly, from ~1905 - 1927 some of the most famous people in British science (Thomson, Ramsay, etc.) episodically reported experimental results that are, in hindsight, obviously the result of LENR nuclear transmutations. The anomalous effects (e.g., appearance of new elements) were observed spectroscopically in various electrical discharge experiments and published in premier refereed journals of that era (e.g., Nature, Proceedings of the Royal Society, etc.). Interestingly, Thomson published a paper in Nature in which he complained about having major problems with experimental reproducibility of such effects. Does this problem sound familiar --- a la the Pons & Fleischmann brouhaha in 1989? Back in the 1920s, nobody had a sensible explanation for anomalous transmutation effects that were being discovered experimentally; so by 1932 (when Chadwick experimentally confirmed the existence of the neutron predicted by Rutherford) the whole area of inquiry had been quietly dropped with little fanfare, many people apparently preferring to pursue 'hotter' contemporary topics such as quantum mechanics. Over the past 100+ years, who knows how many scientists have actually observed different aspects of LENR-related phenomena, could not explain or understand what they saw experimentally, and were then either unable or unwilling to publish such controversial results in well-recognized, peer-reviewed journals. One can only wonder at what may have been lost to science. Lewis Larsen President and CEO Lattice Energy LLC Chicago, IL USA 1-312-861-0115 Scanned pages from Sternglass’ 1997 book follow
lewisglarsen
Text Box
Special note: in the highlighted sections, Sternglass is really talking about looking for the presence of neutrons he thought could potentially be produced in his hydrogen-filled X-ray tube experiments via the weak interaction, that is e + p --> n + neutrino. After actually observing the neutrons he had hypothesized might be created, the remaining theoretical puzzle became explaining how such neutrons could possibly be created under conditions present in his experiments. In Sternglass' words, “... there was no chance that such an experiment could possibly succeed. The neutron was believed to have a mass so large that it would take an electron accelerated to about 780,000 volts to produce it. But the power supply of Parratt's X-ray tube would only provide about 35,000 volts, some twenty-two times less ... C. G. Darwin's calculations indicated that neutrons might be formed by capturing an electron even at low energies.” Einstein was clearly aware of Darwin's work when he suggested to Sternglass that, “... perhaps more than the energy produced by the applied potential might become available if more than one electron were to give up its energy to a proton at the same time, something that is conceivable according to quantum theory.” Unfortunately, Sternglass did not pursue Einstein's astoundingly prescient suggestion and dropped the line of inquiry. What Einstein was referring to is today called many-body collective quantum effects and is a crucial component of the Widom-Larsen theory of LENRs in condensed matter. Unlike Sternglass, we followed Einstein's advice and built upon C. G. Darwin's seminal work in 1920. In our “Primer” paper published in Pramana - Journal of Physics (2010) we have a whole Section 4.1 pp. 629 - 631 titled, “Darwin electrodynamics.” Sixty years later, we have implemented Einstein's bold vision in our work.
BEFORE THE BIG BANGTHE ORIGINS OF THE UNIVERSE
By Ernest]. Sternglass
To see the world in a grain of sand,
And heaven in a wild flower;
Hold infinity in the palm ofyour hand,
And eternity in an hour.
-Auguries ofInnocence,
William Blake (1789)
FOUR WALLS EIGHT WI DOWS EW YORK/LONDON
lewisglarsen
Text Box
The following 16 pages are scanned and excerpted from this book
Published in the United States by:Four Walls Eight Windows39 WeSI14th Street, room 503
New York, N.Y.,1001l
U.K. offices:FourWalls Eight Windows/Turnaround
UnilJ. OlympiaTrading EstateCoburg Road, Wood GreenLondon N22 6TZ, England
First priming OclObcr 1997.
All rights reserved. No part of this book may be
reproduced. stored in a data base or other retrievalsystem, or transmilted in any form, by any means,including lllcchanical, electronic, photocopying,recording, or otherwise, without 'he prior writtenpermission of the publisher.
Library ofCongress Cataloging-in-Publication Data:Sccrnglass. Ernest J.Before the big bang: the urigins urthe universel by
Ernest J. Sternglass.p. em.Includes bibliographical references and index.
ISDN 1-56858-087-8
t. Matter-History. 2. Matter-Mathematical models.
:.\. Cosmology. 4. Panicles {Nuclear physicsl-History.5. Physicists-Correspondencc. I. Tille.
QC171.2.sB4 1997
523.1·2-DC21 97'26395CIf>
1098765432
Printed in the United StatesIllustrations by Brian J. LoprcstiText design and composition by Ink, Inc., New York
7fi BEfORf THE BIG BoIIlG
This historical vlcwofthc cydical changes ofscientific ideas gave me
hope thai overthe courseoflhe years, a newcra ofunification ofour theo_
ries on the nature of mailer and the evolution of the universe would COme
about, and that it was mostlikcly to involve electromagnetic concepts, as
Lorentz had belicved to the end of his life. But this dcvclopmenl would
take a long time, during which I would have to be able to earn a living in a
·cobbler's job~ while working on the theoretical and conceptual problems
of physical theory on the sid~, as Einstein had urged me to do. I realized
that I would need an advanced degree. I had 10\'00 living in scenic Imaca
with its deep gorges and waterfalls whilc pursuing my undergraduate
studies at Cornell, and so Idecided to return there while keeping my posi
tion at the Naval Ordnance Laboratory. coming back to Washinh'ton dur
ing the summers and using my work on secondary electron emission for
my thesis subject.
CHAPTER 6
"BE STUBBORN"
IN EARLY 1949, J returned to Cornell for graduate studies in the newly
fonned program of Engineering Physics. The university had attracted
some of the world's most outstanding scientists to its faculty, many of
whom bad been involved in the Manhattan Project that developed the
atomic bomb. Among these was Richard Feynman, the brilliant, brash
young theoretical physicist who had been instrumental in developing
new methods of computing in Hans Hethe's theoretical division at Los
Alamos. Bethe had been instrumental in bringing Feynman to Cornell
shortly after the end of the war in 1945. Feynman shared an office with
Philip Morrison, who had also worked on the atomic bomb at Los Alamos,
and who agreed to serve as my principal adviser in theoretical physics
on my thesis committee. Feynman sometimes joined my discussions
with Morrison about the nature of the neutron and the mesons newly
discovered in cosmic rays. This brief acquaitancc led me, a decade later,
to work out the mathematical details of an electromagnetic model for
the mesons that turned out to be the basis for the Lemaitre atom.
I had originally hoped to do my thesis work on the theory of secondary
electron emission under Hethe. Hethe was most widely known for his work
on the nuclear reactions in stars that produced the heavier elements from
hydrogen, accounting for the source of their energy along lines similar to
those studied by Garnow. Bethe had also vvritten some definitive papers on
energy loss offast particles passing through atoms, elaborating on the work
ofe. G. Darwin and the pioneering studies of Niels Bohr. Secondary emis
sion works like a cue ball striking the racked balls on a pool table; fast "pri
mary electrons" strike the surface ofa solid and eject other secondary elec
trons from the atoms they hi!. Gradually, the primary or incident electrons
n
lewisglarsen
Text Box
Special note on C. G. Darwin's seminal work on collective effects with electrons back in 1920: "Motions of charged particles," C. G. Darwin, Philosophical Magazine Series 6 (1901-1925) pp. 537 - 551 (1920) Can be purchased online from Taylor & Francis DOI: 10.1080/14786440508636066
lewisglarsen
Line
lewisglarsen
Line
lewisglarsen
Line
. h
WhE~n I taJlla~Cl
sec~onQaly .......'""....I.I~U~ emissiio.n
n~'L",II."'"
n emllSS10n
~BeStllbborn~ 79
nomenon that I was able to work out in the foUowing two years formed
the subject of my doctoral thesis. My work on secondary emission in the
case of insulators such as potassium chloride, which I had begun to
study at the Naval Ordnance Laboratory, later led to a job at theWesting'
house Research Laboratories. A new family of detectors in high energy
accelerators, used to study panicles similar to the mesons, eventually
resulted from the phenomena involving this simple salt. Years later, thin
foils carrying a layer of potassium chloride in powdered fonn were used
to store electrical charges, making possible a new type of television tube
to transmit ultraviolet images and spectra of Stars from the first orbiting
observatories in space. The same type of camera tubes-whlch I also
worked on, decades later--allowed us to witness the first steps ofa human
on the moon as this historic event was actually taking place.
At Cornell. I worked under the guidance of Philip Morrison, a far
sighted and open-minded Individual. Ten years or so younger than
Gamow, Morrison shared with him an enormous enthusiasm and ability
to make complex ideas vividly clear, both to his students and to the gen
eral public. Morrison had a wide interest in science, te<:hnology and the
history of ideas reaching far beyond the field of theoretical physics, in
which he had received his doctorate under Roben Oppenheimer, who
directed the development of the atomic bomb. Morrison was willing to
listen patiently to the unconventional ideas of some of his students,
never discouraging them but always coming up with probing questions
that touched the heart of the problem.
Morrison had been involved firsthand with the difficult and danger
ous task of designing and assembling the plutonium cores of the first
two implosion·type nuclear bombs at LDs Alamos, and had also been
among the first Amcrican scientists to visit Hiroshima just aftcr the
Japanese surrender. He was deeply committed to warning the public
and politicians of the need to prevent another world war. As a result, he
became one of the foundcrs afthe federation ofAmerican SCientists, an
organi7..8tion dedicated to peace. MOrTison wrote numerous articles to
describe the horrors he had seen in Japan, not just those produced by
lewisglarsen
Line
lewisglarsen
Line
lewisglarsen
Line
G
an B-29
o
·i on'
bsb._
-- p
. mic
a' ndr' d
-aids. ;
"
_ a e,o,v-r,,,"'ding
-donedthi
h rh b
, bYJo'
a . 'h ,..H't'·n,...,.1
omical co............... ·.,.,.,
eov d 0
tIl ppli d
on roy
in
e
am
ard
-5) n
d· trObuLion 0'
uggesi[e
v ar r truet re of mny up
rotated. I realized ha this model wa uppored by de Vaucouleurs l
views. The univers appears to be a -'ghly 0 dered hierarchical sys e
composed of fO ati ,g systems of increa ing size,. as first envisioned by
Immanue Kant 0 hundred years ago, rat er than a random collection
ofgalaxie .
Ruhin eventually b came a wide y respected astronomer~wo king a
th Carnegie In ti utian in Washington, .C. Using electronic image
intensifiers. rOed au by - er colleague Ken Ford as a way 0 improve
upon e limi· ed s ~ nsitivity of photographic film, Rubin pioneered the
study of he rotation ofgalaxies. A decade after leaving Cornell,. I' ad an
opportunity to try out a ew type of electronic image intensifier wi h
Ford at the Lowell Observatory in lagstaff Arizona, based on the work
on seeD clary electron emission fro insulating cry als that I had
begun a the avaJ Ordnance Laboratory; By e early 19705" the work of
R bin and Ford on the rotation of galaxies had provided the most con
vincing observational evidencetha these gi,gan ic systems of stars were
. urrounded by an enormous halo of invisible 'dark matter" of an
unknown nature for which the electromagnetic theory of mass had
mscu sed with Einstein in Pr· ceton and later with Morrison and Feyn
man at Cor. e offered a po sible' ,explanation.
As controversial as, the idea ofrotating s perdus'e s or even a rotat
. g universe were when Rubin and I at in Morrison's class on moder_
physics at Cornell, I learned ofan even more controversial theory about
the nature of he universe through a lecture by the vi iting British
astronome ! homa Gold. Gold, who a. few years ater joined the ver
s"ty's Astronomy Department, to,gether with· ermann Bondi and Fred
oyle at Cambridge University in Englan' did not like the idea of a Big
Bang a a singular occurre ce, as advanced by Lemar re and Gamow;
nstead, in a series of pap s published a few years after World War II,
Go d, Bondi and Hoyle proposed the radical idea that the universe was
in a eady s ate of constant xpansion that had been go~ngon orever
and would continu expanding indefinitely. They based this concept on
what th y called the uPerfect Co· ological Principle'" aceD ding I 0
,8 BEFOR 'I' EIU; . NIG
hi h the Wl"V rse i no onl the smne
our I poc bu, also th
ine
la-
nation ~or ,a pro e
LO''''....'.... oren
p
u
ig
d
.1 no
nom r
eoryofth,e
t thi
0' d
tha,
p .-t-.ouetb.atdidno viomat, th_la so conserva ~ollof
and energy-o th idaofn rna, ter continuousl appearing au, 0'
j n ..h,.d out t b imporra. tome,. h s eady-tat· eorytsid a th· '~ go on fOIi ver " as ba do,. L itt jan'
arnow's d , in ,omb"' a ., n" ubinJs " d ule r· I c n-
elusion that the system of galaxies to which the Milky Way belongs
seemed to be rotating.
Th controversyat Cornell about Rubin's results was allowed byone I
caused in the physics department the next year. eriment at began
in 1951 in pursuitofan electromagn tic model for e neutro . s· owed that
neu ons could apparently b form d from proton an el ctro s at v
lowe ergie ,far belowthe energyprediete - by . e cxi ·ng thee .
T ·e idea for thi xperiment 0 curred to me· (leading about _
search or the n utron by Ru -erford and Cha .ck d . g th decad
after: utherford had first premed its existence in·, .early 920S. I
found that Chadwick had a one time looked fOJ!'these e sive neutral
massive co stituents of the nuclei ofall atoms in a drogen- 'ed - _c
trical discharge tube. . ube was imilar 0 old ga -discharg typ
o --ray tub syst m I had s n in a baseme laboratory of Lyman Par-
,0 e of th senior memb of th p ysics de artm -nt a Cornell,
who ad also work d on the a ornie bomb project. Such a gas-discharge
,b op rate lik a modern fluore ce tamp, b ing nothing mu h
mor than a tube fill ~ d -wi .a gas t a low I ressur to whkh vol age'
applied at the ends where et w· es fus into the glass, conduc: ing
electric charges that aJ a a curent 0 pass through the gas. Bll . - s ead
ofapplying one or two hundred 'Volt or 0 as do pI sen -day fiuore c nt
lamp in the ' ady years of X-ray· dies such tubes were operated at
many ousand of vo 1S. Electron em ~ .-ed from the negatie e d,
called the ca hode, would be accelerated and strike th electrode at the
positive end or anode, thereby generating X-rays. It was exactly so tha
X-rays were accidentally discovered by Wilhel Conrad Rontgent who
used this type of gas-discharge tube in his labora ory at the U 'versity of
Wilrzburg ._·Bavaria in1895.
Based on the theoretical work of C. G. Darwin, the mathema-·c·an
who worked with Rutherford when he discoveredthemassjvepro on in
the nucleu 0 atoms, I p culat d a· 0' rar oe a '.0' s an lemoncom.ing sufficie' tly close to a p oton might be captured to for a ne -
·0·. vidently; thi idea had occuri'd to ' uterfo d an Chadwi -k in
lewisglarsen
Line
lewisglarsen
Line
lewisglarsen
Line
84 BE r H
r t1et:ect
u ron-in.....' "w,",,,",,u
no
discclvelv
utth
'n
eC ,ie, __ I, daugh ,er
ar' iall- radioac,:uri
ould be m to c
eutron .
neu1:rOI1S
h
a d
extlect:ation
h d
fa
tomi
'ete~rre<1 to a
vear-sla er ........ ,1" .... ""
, lin,
orand indi :
, ac
In
rod""";",,",
fth
ga
00. ,U
nd'
o
f th n-utr
e on Q~ieci
["r">'... n ....,.. I a I .
ee.to
o
lewisglarsen
Line
lewisglarsen
Line
proton. an electron and a neutrino as worked out by Fermi, there, ~ no
ance that such all. ,experim, nt could po s' 1y suec ed. The neutron
was believed to ave a ass so lar~e that it would t·e an ,electrol ace
era d to abou 780, 0000 ts to produc i. But the power' u pi of Par
rate X-ray tub wouidonIyprovid about3S, 000 vo " I som ,twenty-two
ti e less., .everthe1ess. the neutrino had ot yet be,en direc yobserved
to ens , and i ,was possible. eutrons did no au. a e exactly the same
,m,ass under all conditions. C. G. Darwins calculations indicated ilia n "
trons might beform,ed bycapturing an electron even at low energies.
The likelihood that I would be able to produce neutrons was very
small, and in retrospect it was amazing that I was allowed to carry oU'
the experim,ent at all. It was only the open-mindedness ofMorrison and
Parratt that made it pass'b e. And so,wben after the very first few .xper' ~
men s with p blocks piled a ou d silver and indi' m oils close- to
the- old bras X-ray tub howe .i, S of radioa.ctivity thirty to fif y per
c llt abov' th normal background of the detecto many of my co
leag .-es could not believe this was du to neutrons being fonned from
low energy ele ro· .and p ·oton .
As I excitedly explained in a Ie- .ter that I 'wrote to Eins ein .at the end
ofAugust 1951; the results could no be explained by the acfon ofcas'mic
rays forming: ne tro ; because none were detected when no voltage
was applied to the tube.. It co d al 0 not be e plaind by contami . anonof the metal electrodes in the tube. . had replaced m,atedals a could
give rise 0 n uno "wid .wly machin d parts. The po s" ility tha •. a.
mall normal admixt re of deuted m, a. orm 0 heavy hydroge_ ~ was
e sourc'e of neutrons was eliminated both theoretically and subse
quently 'Y deliberately adding known, amounts 0 till gas andm asur
ing th . eutron produc ion rate. To ev,eryo . I con cr a i .n,. no one' i ~
he phy· d partme was ab _ to sugg t a. known nuclear reaction
that might xplain tb ob rved ac ivity~
] Inentioned in my lie er to Einstein that in ord . r to improve the ability
to detect neutrons,. two of the facul, Giuseppe Cocconi and Kenneth
reisen, had offered '0 take' the indi.um foils with their' onger lived activity
lewisglarsen
Line
lewisglarsen
Line
86 BEfORf THf BIG BANG
of 54 minutes to a nearby salt mine, where they were carrying out cosmic
ray experiments and the background count rate was much less than Iwas
able to produce with six. inches of lead to shield my counters in Rockefeller
Hall. This was in fact done a few weeks later, although the first effort to
speed the process of gelling the foils to the counters two thousand feet
below the surface by dropping them between two pieces ofplywood ended
in minor disaster when the foil crumpled upon hitting the ground. Chas
tened, we used the elevator to get the foils down to the counters in the mine
over the next few weeks, and the evidence for neutrons being formed in the
discharge lube continued to show up.
Afew days after' sent my letter to Einstein, a reply arrived that did in
fact conlain a possible explanation of my anomalous result with rather
disheartening implications for my attempt to do without the neutrino.
After pointing out that an electron would have to acquire an energy of
780,000 volts to form a neutron, Einstein suggested that perhaps more
than the energy produced by the applied potential might become avail·
able if more than one electron were to give up its energy to a prOton at
the same time, something that is conceivable according 10 quantum
theory. He ended his letter by saying that since the results of the experi
ments were dearly important, further pursuit of the method would be
necessary. He also raised the question whether it might not be advanta
geous to use an electron beam of known energy, and let it fallon a solid
target such as paraffin that contained hydrogen so that the energy of the
electrons could be brought under bener control.
I answered Einstein and explained why I thought that even at rela
tively low energies neutrons might be formed if they had slightly differ
ent masses, an idea that I fell had nO[ been completely ruled out. I did in
fact follow Einstein's suggeslions, further experimenting with the gas
discharge tube at Cornell for a few more months. I presented my results
at a meeting of the Journal Club of the Physics Department later that fall.
The improved sensitivity by doing the measurements ofthe indium foils
in the salt mine continued to indicate the production of neutrons, but
no one could find any explanation othcr than t.hat suggeslcd by EinSlcin.
lewisglarsen
Line
lewisglarsen
Line
lewisglarsen
Line
lewisglarsen
Line
By the end of the fall semester, it became' clear that I had to give up my
efforts for the fme behg in order to finish mywork on s:econdary emis
s'on so as to get my doctoral degree.
1\vo y ars later th - experiment w:~s independen y repea ed by
Edwar Thou so ~ at physicist and friend ofmine at the Naval Ordn _. ce
abomtory; \!'li,th . • ar Ie u1 . But when om niney ars later at - e
Westinghouse Research Labor-a orie ,Jall bad an opportunity to
carry 0 t th exp' -rimen with a separate electron beam intera ting with
botb solid and gaseou targ- -, in th form suggested by Einstein. no
neutrons we- e produced.
To this day;, just exactly how neu 0 can be formed at much. ower
energie -an expected in the complex environmen .of a gas-discharge
tube remains a -- ystery; Neutrinos were fin.ally detected in 1956 by -ed
erick Reines and Clyde Cowan, Since then,. they have been observed in
high energy accelerators, coming from the Sun and more distan. stars.,
but there remains an unresolved puzzle a.bout their production de p in
the interior ofstars, n the coursle of thirty..six years ofexperim,ents since
1960, despite increasingly sophisticated exp,ernnents, only half as many
neutrinos have been observed as would be expected on the basis of the
ories for he Sun's energy production. Since: the condition in th - interior
of the Sun are somewhat analogous to those in a high voltage hydrogen
discharge such asl used at Cornell; there may be some surprises await
ing us relating to the so~calledfusion processes tha', produce the ,energy
inst3Isinvolvingthe for,mafon ofheliwn from hydrogen, on the course
ofwhich both neutrons and neutrinos are produced.
Although phys~calmeehanismby which neutron were fo d
in m' expe iment remained u e .a'" e· and my findings were .a
source of gr at controversy; I was not discouraged in my ffo _ to pur
'u Ie tromagn tic mode ,for th n utron and th man· ne par'de
l e. b ing dicovr. seI'es of large nuclear par-'de accelerators
went into 0 e, ation at various universities during the three years ofmy
g,raduate work a 0 n.elL And my studies in the history and philosopby
of de ce convincedme that a periodofgreat confusion, when many new