Hermann von Helmholtz and the foundations of nineteenth-century science:
Gespeichert in:
Format: | Elektronisch E-Book |
---|---|
Sprache: | English |
Veröffentlicht: |
Berkeley
University of California Press
©1993
|
Schriftenreihe: | California studies in the history of science
12 |
Schlagworte: | |
Online-Zugang: | DE-1046 DE-1047 Volltext |
Beschreibung: | Includes bibliographical references pages (603-636) and index Chronological Listing of the Principal Events and Publications of Helmholtz's Life and Career -- - Introduction: Helmholtz at the Borders of Science - David Cahan -- - Helmholtz and the German Medical Community - Arleen Tuchman -- - Experiment, Quantification, and Discovery: Helmholtz's Early Physiological Researches, 1843-50 - Kathryn M. Olesko and Frederic L. Holmes -- - The Eye as Mathematician: Clinical Practice, Instrumentation, and Helmholtz's Construction of an Empiricist Theory of Vision - Timothy Lenoir -- - Consensus and Controversy: Helmholtz on the Visual Perception of Space - R. Steven Turner -- - Innovation through Synthesis: Helmholtz and Color Research - Richard L. Kremer -- - Sensation of Tone, Perception of Sound, and Empiricism: Helmholtz's Physiological Acoustics - Stephan Vogel -- - Helmholtz's Ueber die Erhaltung der Kraft: The Emergence of a Theoretical Physicist - Fabio Bevilacqua Hermann von Helmholtz (1821-1894) was a polymath of dazzling intellectual range and energy. Renowned for his co-discovery of the second law of thermodynamics and his invention of the ophthalmoscope, Helmholtz also made many other contributions to physiolo |
Beschreibung: | 1 Online-Ressource (xxix, 666 pages) |
ISBN: | 0520083342 0520914090 0585112894 1282356747 9780520914094 9780585112893 9781282356740 |
Internformat
MARC
LEADER | 00000nam a2200000zcb4500 | ||
---|---|---|---|
001 | BV043061634 | ||
003 | DE-604 | ||
007 | cr|uuu---uuuuu | ||
008 | 151126s1993 xx o|||| 00||| eng d | ||
020 | |a 0520083342 |9 0-520-08334-2 | ||
020 | |a 0520914090 |9 0-520-91409-0 | ||
020 | |a 0585112894 |9 0-585-11289-4 | ||
020 | |a 1282356747 |9 1-282-35674-7 | ||
020 | |a 9780520914094 |9 978-0-520-91409-4 | ||
020 | |a 9780585112893 |9 978-0-585-11289-3 | ||
020 | |a 9781282356740 |9 978-1-282-35674-0 | ||
035 | |a (OCoLC)44965036 | ||
035 | |a (DE-599)BVBBV043061634 | ||
040 | |a DE-604 |b ger |e aacr | ||
041 | 0 | |a eng | |
049 | |a DE-1046 |a DE-1047 | ||
082 | 0 | |a 509.2 |2 20 | |
245 | 1 | 0 | |a Hermann von Helmholtz and the foundations of nineteenth-century science |c edited by David Cahan |
264 | 1 | |a Berkeley |b University of California Press |c ©1993 | |
300 | |a 1 Online-Ressource (xxix, 666 pages) | ||
336 | |b txt |2 rdacontent | ||
337 | |b c |2 rdamedia | ||
338 | |b cr |2 rdacarrier | ||
490 | 0 | |a California studies in the history of science |v 12 | |
500 | |a Includes bibliographical references pages (603-636) and index | ||
500 | |a Chronological Listing of the Principal Events and Publications of Helmholtz's Life and Career -- - Introduction: Helmholtz at the Borders of Science - David Cahan -- - Helmholtz and the German Medical Community - Arleen Tuchman -- - Experiment, Quantification, and Discovery: Helmholtz's Early Physiological Researches, 1843-50 - Kathryn M. Olesko and Frederic L. Holmes -- - The Eye as Mathematician: Clinical Practice, Instrumentation, and Helmholtz's Construction of an Empiricist Theory of Vision - Timothy Lenoir -- - Consensus and Controversy: Helmholtz on the Visual Perception of Space - R. Steven Turner -- - Innovation through Synthesis: Helmholtz and Color Research - Richard L. Kremer -- - Sensation of Tone, Perception of Sound, and Empiricism: Helmholtz's Physiological Acoustics - Stephan Vogel -- - Helmholtz's Ueber die Erhaltung der Kraft: The Emergence of a Theoretical Physicist - Fabio Bevilacqua | ||
500 | |a Hermann von Helmholtz (1821-1894) was a polymath of dazzling intellectual range and energy. Renowned for his co-discovery of the second law of thermodynamics and his invention of the ophthalmoscope, Helmholtz also made many other contributions to physiolo | ||
600 | 1 | 4 | |a Helmholtz, Hermann Ludwig Ferdinand von |
600 | 1 | 7 | |a Helmholtz, Hermann von / 1821-1894 |2 fast |
600 | 1 | 4 | |a Helmholtz, Hermann von |d 1821-1894 |
600 | 1 | 7 | |a Helmholtz, Hermann von |d 1821-1894 |0 (DE-588)11854893X |2 gnd |9 rswk-swf |
648 | 7 | |a 1800 - 1899 |2 fast | |
648 | 4 | |a Geschichte 1800-1900 | |
650 | 7 | |a BIOGRAPHY & AUTOBIOGRAPHY / Science & Technology |2 bisacsh | |
650 | 7 | |a SCIENCE / General |2 bisacsh | |
650 | 7 | |a Physiologists |2 fast | |
650 | 7 | |a Science |2 fast | |
650 | 7 | |a Scientists |2 fast | |
650 | 7 | |a Fysiologie |2 gtt | |
650 | 7 | |a Natuurkunde |2 gtt | |
650 | 7 | |a Natuurwetenschappen |2 gtt | |
650 | 4 | |a Geschichte | |
650 | 4 | |a Naturwissenschaft | |
650 | 4 | |a Physik | |
650 | 4 | |a Science |x History |y 19th century | |
650 | 4 | |a Scientists |z Germany |v Biography | |
650 | 4 | |a Physiologists |z Germany |v Biography | |
651 | 4 | |a Deutschland | |
655 | 7 | |0 (DE-588)4006804-3 |a Biografie |2 gnd-content | |
689 | 0 | 0 | |a Helmholtz, Hermann von |d 1821-1894 |0 (DE-588)11854893X |D p |
689 | 0 | |8 1\p |5 DE-604 | |
700 | 1 | |a Cahan, David |e Sonstige |4 oth | |
856 | 4 | 0 | |u http://search.ebscohost.com/login.aspx?direct=true&scope=site&db=nlebk&db=nlabk&AN=19172 |x Aggregator |3 Volltext |
883 | 1 | |8 1\p |a cgwrk |d 20201028 |q DE-101 |u https://d-nb.info/provenance/plan#cgwrk | |
912 | |a ZDB-4-EBA | ||
943 | 1 | |a oai:aleph.bib-bvb.de:BVB01-028485826 | |
966 | e | |u http://search.ebscohost.com/login.aspx?direct=true&scope=site&db=nlebk&db=nlabk&AN=19172 |l DE-1046 |p ZDB-4-EBA |q FAW_PDA_EBA |x Aggregator |3 Volltext | |
966 | e | |u http://search.ebscohost.com/login.aspx?direct=true&scope=site&db=nlebk&db=nlabk&AN=19172 |l DE-1047 |p ZDB-4-EBA |q FAW_PDA_EBA |x Aggregator |3 Volltext |
Datensatz im Suchindex
_version_ | 1824627631648145408 |
---|---|
adam_text | |
any_adam_object | |
building | Verbundindex |
bvnumber | BV043061634 |
collection | ZDB-4-EBA |
ctrlnum | (OCoLC)44965036 (DE-599)BVBBV043061634 |
dewey-full | 509.2 |
dewey-hundreds | 500 - Natural sciences and mathematics |
dewey-ones | 509 - History, geographic treatment, biography |
dewey-raw | 509.2 |
dewey-search | 509.2 |
dewey-sort | 3509.2 |
dewey-tens | 500 - Natural sciences and mathematics |
discipline | Allgemeine Naturwissenschaft |
era | 1800 - 1899 fast Geschichte 1800-1900 |
era_facet | 1800 - 1899 Geschichte 1800-1900 |
format | Electronic eBook |
fullrecord | <?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>00000nam a2200000zcb4500</leader><controlfield tag="001">BV043061634</controlfield><controlfield tag="003">DE-604</controlfield><controlfield tag="007">cr|uuu---uuuuu</controlfield><controlfield tag="008">151126s1993 xx o|||| 00||| eng d</controlfield><datafield tag="020" ind1=" " ind2=" "><subfield code="a">0520083342</subfield><subfield code="9">0-520-08334-2</subfield></datafield><datafield tag="020" ind1=" " ind2=" "><subfield code="a">0520914090</subfield><subfield code="9">0-520-91409-0</subfield></datafield><datafield tag="020" ind1=" " ind2=" "><subfield code="a">0585112894</subfield><subfield code="9">0-585-11289-4</subfield></datafield><datafield tag="020" ind1=" " ind2=" "><subfield code="a">1282356747</subfield><subfield code="9">1-282-35674-7</subfield></datafield><datafield tag="020" ind1=" " ind2=" "><subfield code="a">9780520914094</subfield><subfield code="9">978-0-520-91409-4</subfield></datafield><datafield tag="020" ind1=" " ind2=" "><subfield code="a">9780585112893</subfield><subfield code="9">978-0-585-11289-3</subfield></datafield><datafield tag="020" ind1=" " ind2=" "><subfield code="a">9781282356740</subfield><subfield code="9">978-1-282-35674-0</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(OCoLC)44965036</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-599)BVBBV043061634</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-604</subfield><subfield code="b">ger</subfield><subfield code="e">aacr</subfield></datafield><datafield tag="041" ind1="0" ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="049" ind1=" " ind2=" "><subfield code="a">DE-1046</subfield><subfield code="a">DE-1047</subfield></datafield><datafield tag="082" ind1="0" ind2=" "><subfield code="a">509.2</subfield><subfield code="2">20</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Hermann von Helmholtz and the foundations of nineteenth-century science</subfield><subfield code="c">edited by David Cahan</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="a">Berkeley</subfield><subfield code="b">University of California Press</subfield><subfield code="c">©1993</subfield></datafield><datafield tag="300" ind1=" " ind2=" "><subfield code="a">1 Online-Ressource (xxix, 666 pages)</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="b">txt</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="b">c</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="b">cr</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="490" ind1="0" ind2=" "><subfield code="a">California studies in the history of science</subfield><subfield code="v">12</subfield></datafield><datafield tag="500" ind1=" " ind2=" "><subfield code="a">Includes bibliographical references pages (603-636) and index</subfield></datafield><datafield tag="500" ind1=" " ind2=" "><subfield code="a">Chronological Listing of the Principal Events and Publications of Helmholtz's Life and Career -- - Introduction: Helmholtz at the Borders of Science - David Cahan -- - Helmholtz and the German Medical Community - Arleen Tuchman -- - Experiment, Quantification, and Discovery: Helmholtz's Early Physiological Researches, 1843-50 - Kathryn M. Olesko and Frederic L. Holmes -- - The Eye as Mathematician: Clinical Practice, Instrumentation, and Helmholtz's Construction of an Empiricist Theory of Vision - Timothy Lenoir -- - Consensus and Controversy: Helmholtz on the Visual Perception of Space - R. Steven Turner -- - Innovation through Synthesis: Helmholtz and Color Research - Richard L. Kremer -- - Sensation of Tone, Perception of Sound, and Empiricism: Helmholtz's Physiological Acoustics - Stephan Vogel -- - Helmholtz's Ueber die Erhaltung der Kraft: The Emergence of a Theoretical Physicist - Fabio Bevilacqua</subfield></datafield><datafield tag="500" ind1=" " ind2=" "><subfield code="a">Hermann von Helmholtz (1821-1894) was a polymath of dazzling intellectual range and energy. Renowned for his co-discovery of the second law of thermodynamics and his invention of the ophthalmoscope, Helmholtz also made many other contributions to physiolo</subfield></datafield><datafield tag="600" ind1="1" ind2="4"><subfield code="a">Helmholtz, Hermann Ludwig Ferdinand von</subfield></datafield><datafield tag="600" ind1="1" ind2="7"><subfield code="a">Helmholtz, Hermann von / 1821-1894</subfield><subfield code="2">fast</subfield></datafield><datafield tag="600" ind1="1" ind2="4"><subfield code="a">Helmholtz, Hermann von</subfield><subfield code="d">1821-1894</subfield></datafield><datafield tag="600" ind1="1" ind2="7"><subfield code="a">Helmholtz, Hermann von</subfield><subfield code="d">1821-1894</subfield><subfield code="0">(DE-588)11854893X</subfield><subfield code="2">gnd</subfield><subfield code="9">rswk-swf</subfield></datafield><datafield tag="648" ind1=" " ind2="7"><subfield code="a">1800 - 1899</subfield><subfield code="2">fast</subfield></datafield><datafield tag="648" ind1=" " ind2="4"><subfield code="a">Geschichte 1800-1900</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">BIOGRAPHY & AUTOBIOGRAPHY / Science & Technology</subfield><subfield code="2">bisacsh</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">SCIENCE / General</subfield><subfield code="2">bisacsh</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">Physiologists</subfield><subfield code="2">fast</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">Science</subfield><subfield code="2">fast</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">Scientists</subfield><subfield code="2">fast</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">Fysiologie</subfield><subfield code="2">gtt</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">Natuurkunde</subfield><subfield code="2">gtt</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">Natuurwetenschappen</subfield><subfield code="2">gtt</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Geschichte</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Naturwissenschaft</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Physik</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Science</subfield><subfield code="x">History</subfield><subfield code="y">19th century</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Scientists</subfield><subfield code="z">Germany</subfield><subfield code="v">Biography</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Physiologists</subfield><subfield code="z">Germany</subfield><subfield code="v">Biography</subfield></datafield><datafield tag="651" ind1=" " ind2="4"><subfield code="a">Deutschland</subfield></datafield><datafield tag="655" ind1=" " ind2="7"><subfield code="0">(DE-588)4006804-3</subfield><subfield code="a">Biografie</subfield><subfield code="2">gnd-content</subfield></datafield><datafield tag="689" ind1="0" ind2="0"><subfield code="a">Helmholtz, Hermann von</subfield><subfield code="d">1821-1894</subfield><subfield code="0">(DE-588)11854893X</subfield><subfield code="D">p</subfield></datafield><datafield tag="689" ind1="0" ind2=" "><subfield code="8">1\p</subfield><subfield code="5">DE-604</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Cahan, David</subfield><subfield code="e">Sonstige</subfield><subfield code="4">oth</subfield></datafield><datafield tag="856" ind1="4" ind2="0"><subfield code="u">http://search.ebscohost.com/login.aspx?direct=true&scope=site&db=nlebk&db=nlabk&AN=19172</subfield><subfield code="x">Aggregator</subfield><subfield code="3">Volltext</subfield></datafield><datafield tag="883" ind1="1" ind2=" "><subfield code="8">1\p</subfield><subfield code="a">cgwrk</subfield><subfield code="d">20201028</subfield><subfield code="q">DE-101</subfield><subfield code="u">https://d-nb.info/provenance/plan#cgwrk</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">ZDB-4-EBA</subfield></datafield><datafield tag="943" ind1="1" ind2=" "><subfield code="a">oai:aleph.bib-bvb.de:BVB01-028485826</subfield></datafield><datafield tag="966" ind1="e" ind2=" "><subfield code="u">http://search.ebscohost.com/login.aspx?direct=true&scope=site&db=nlebk&db=nlabk&AN=19172</subfield><subfield code="l">DE-1046</subfield><subfield code="p">ZDB-4-EBA</subfield><subfield code="q">FAW_PDA_EBA</subfield><subfield code="x">Aggregator</subfield><subfield code="3">Volltext</subfield></datafield><datafield tag="966" ind1="e" ind2=" "><subfield code="u">http://search.ebscohost.com/login.aspx?direct=true&scope=site&db=nlebk&db=nlabk&AN=19172</subfield><subfield code="l">DE-1047</subfield><subfield code="p">ZDB-4-EBA</subfield><subfield code="q">FAW_PDA_EBA</subfield><subfield code="x">Aggregator</subfield><subfield code="3">Volltext</subfield></datafield></record></collection> |
genre | (DE-588)4006804-3 Biografie gnd-content |
genre_facet | Biografie |
geographic | Deutschland |
geographic_facet | Deutschland |
id | DE-604.BV043061634 |
illustrated | Not Illustrated |
indexdate | 2025-02-21T01:15:09Z |
institution | BVB |
isbn | 0520083342 0520914090 0585112894 1282356747 9780520914094 9780585112893 9781282356740 |
language | English |
oai_aleph_id | oai:aleph.bib-bvb.de:BVB01-028485826 |
oclc_num | 44965036 |
open_access_boolean | |
owner | DE-1046 DE-1047 |
owner_facet | DE-1046 DE-1047 |
physical | 1 Online-Ressource (xxix, 666 pages) |
psigel | ZDB-4-EBA ZDB-4-EBA FAW_PDA_EBA |
publishDate | 1993 |
publishDateSearch | 1993 |
publishDateSort | 1993 |
publisher | University of California Press |
record_format | marc |
series2 | California studies in the history of science |
spelling | Hermann von Helmholtz and the foundations of nineteenth-century science edited by David Cahan Berkeley University of California Press ©1993 1 Online-Ressource (xxix, 666 pages) txt rdacontent c rdamedia cr rdacarrier California studies in the history of science 12 Includes bibliographical references pages (603-636) and index Chronological Listing of the Principal Events and Publications of Helmholtz's Life and Career -- - Introduction: Helmholtz at the Borders of Science - David Cahan -- - Helmholtz and the German Medical Community - Arleen Tuchman -- - Experiment, Quantification, and Discovery: Helmholtz's Early Physiological Researches, 1843-50 - Kathryn M. Olesko and Frederic L. Holmes -- - The Eye as Mathematician: Clinical Practice, Instrumentation, and Helmholtz's Construction of an Empiricist Theory of Vision - Timothy Lenoir -- - Consensus and Controversy: Helmholtz on the Visual Perception of Space - R. Steven Turner -- - Innovation through Synthesis: Helmholtz and Color Research - Richard L. Kremer -- - Sensation of Tone, Perception of Sound, and Empiricism: Helmholtz's Physiological Acoustics - Stephan Vogel -- - Helmholtz's Ueber die Erhaltung der Kraft: The Emergence of a Theoretical Physicist - Fabio Bevilacqua Hermann von Helmholtz (1821-1894) was a polymath of dazzling intellectual range and energy. Renowned for his co-discovery of the second law of thermodynamics and his invention of the ophthalmoscope, Helmholtz also made many other contributions to physiolo Helmholtz, Hermann Ludwig Ferdinand von Helmholtz, Hermann von / 1821-1894 fast Helmholtz, Hermann von 1821-1894 Helmholtz, Hermann von 1821-1894 (DE-588)11854893X gnd rswk-swf 1800 - 1899 fast Geschichte 1800-1900 BIOGRAPHY & AUTOBIOGRAPHY / Science & Technology bisacsh SCIENCE / General bisacsh Physiologists fast Science fast Scientists fast Fysiologie gtt Natuurkunde gtt Natuurwetenschappen gtt Geschichte Naturwissenschaft Physik Science History 19th century Scientists Germany Biography Physiologists Germany Biography Deutschland (DE-588)4006804-3 Biografie gnd-content Helmholtz, Hermann von 1821-1894 (DE-588)11854893X p 1\p DE-604 Cahan, David Sonstige oth http://search.ebscohost.com/login.aspx?direct=true&scope=site&db=nlebk&db=nlabk&AN=19172 Aggregator Volltext 1\p cgwrk 20201028 DE-101 https://d-nb.info/provenance/plan#cgwrk |
spellingShingle | Hermann von Helmholtz and the foundations of nineteenth-century science Helmholtz, Hermann Ludwig Ferdinand von Helmholtz, Hermann von / 1821-1894 fast Helmholtz, Hermann von 1821-1894 Helmholtz, Hermann von 1821-1894 (DE-588)11854893X gnd BIOGRAPHY & AUTOBIOGRAPHY / Science & Technology bisacsh SCIENCE / General bisacsh Physiologists fast Science fast Scientists fast Fysiologie gtt Natuurkunde gtt Natuurwetenschappen gtt Geschichte Naturwissenschaft Physik Science History 19th century Scientists Germany Biography Physiologists Germany Biography |
subject_GND | (DE-588)11854893X (DE-588)4006804-3 |
title | Hermann von Helmholtz and the foundations of nineteenth-century science |
title_auth | Hermann von Helmholtz and the foundations of nineteenth-century science |
title_exact_search | Hermann von Helmholtz and the foundations of nineteenth-century science |
title_full | Hermann von Helmholtz and the foundations of nineteenth-century science edited by David Cahan |
title_fullStr | Hermann von Helmholtz and the foundations of nineteenth-century science edited by David Cahan |
title_full_unstemmed | Hermann von Helmholtz and the foundations of nineteenth-century science edited by David Cahan |
title_short | Hermann von Helmholtz and the foundations of nineteenth-century science |
title_sort | hermann von helmholtz and the foundations of nineteenth century science |
topic | Helmholtz, Hermann Ludwig Ferdinand von Helmholtz, Hermann von / 1821-1894 fast Helmholtz, Hermann von 1821-1894 Helmholtz, Hermann von 1821-1894 (DE-588)11854893X gnd BIOGRAPHY & AUTOBIOGRAPHY / Science & Technology bisacsh SCIENCE / General bisacsh Physiologists fast Science fast Scientists fast Fysiologie gtt Natuurkunde gtt Natuurwetenschappen gtt Geschichte Naturwissenschaft Physik Science History 19th century Scientists Germany Biography Physiologists Germany Biography |
topic_facet | Helmholtz, Hermann Ludwig Ferdinand von Helmholtz, Hermann von / 1821-1894 Helmholtz, Hermann von 1821-1894 BIOGRAPHY & AUTOBIOGRAPHY / Science & Technology SCIENCE / General Physiologists Science Scientists Fysiologie Natuurkunde Natuurwetenschappen Geschichte Naturwissenschaft Physik Science History 19th century Scientists Germany Biography Physiologists Germany Biography Deutschland Biografie |
url | http://search.ebscohost.com/login.aspx?direct=true&scope=site&db=nlebk&db=nlabk&AN=19172 |
work_keys_str_mv | AT cahandavid hermannvonhelmholtzandthefoundationsofnineteenthcenturyscience |