81. LA LEGGE DI RIFRAZIONE Translate this page I primi a scoprire la legge sembra siano stati l’astronomo e matematico ingleseThomas Hariot (1560-1621) e il matematico olandese Willebrod Snell (1591-1626 http://ppp.unipv.it/Silsis/Pagine/Epistemologia/Rifrazione/LA RIFRAZIONE.htm

La legge della rifrazione tra Cartesio e Fermat Il fenomeno Quando un bastone viene parzialmente sommerso in un recipiente d’acqua, si osserva un fenomeno alquanto bizzarro: sulla superficie dell’acqua il bastone appare spezzato. Questo fenomeno, noto fin dall’antichità, è causato dalla rifrazione della luce : il bastone appare spezzato a causa della deviazione che i raggi luminosi subiscono passando da un mezzo a un altro, nella fattispecie dall’aria all’acqua. In senso proprio, quindi, il fenomeno della rifrazione consiste nella deviazione dei raggi luminosi, rispetto alla direzione originaria, che si verifica sulla superficie di separazione di due mezzi otticamente diversi quando i raggi passano dal primo al secondo mezzo. 2. I libri di testo: espressione e giustificazione della legge di rifrazione La legge di rifrazione è senz’altro una delle più semplici e importanti dell’ottica. Può essere espressa in questo modo: il raggio incidente, il raggio rifratto e la normale alla superficie nel punto di incidenza giacciono tutti nello stesso piano; il rapporto fra il seno dell’angolo di incidenza i (formato dalla normale e dal raggio incidente) e quello dell’angolo di rifrazione r (formato dalla normale e dal raggio rifratto), indipendentemente dall'angolo d'incidenza, si mantiene costante:

82. Carrollton Public Library /All Locations Mark Nearby SUBJECTS are Year Entries Hariot Thomas 1560 1621 1998 1 Harlem Globetrotters1986 1 Harlem New York NY Biography 1997 1 Harlem New York NY http://innovative.cityofcarrollton.com:90/kids/10,146/search/dHarlem Renaissance

Go to CLICK (regular) Catalog Go to Kids' page WORD AUTHOR TITLE SUBJECT Frankford Village (FVB) Children's Collection Audiobook Collection Video and DVD Collection View Entire Collection Mark Nearby SUBJECTS are: Year Entries Harlem New York N Y Intellectual Life Sources Harlem New York N Y Juvenile Poetry Harlem New York N Y Literary Collections Harlem New York N Y Politics And Government ... Go to www.cityofcarrollton.com

83. EBooks (e-Books, EBook): Digital Book Index: Search By Author Hariot, Thomas, A Briefe True Report of the New Found Land of Virginia(1588 1590 Texts Facsimiles), 1588/90, Html, n/c, UVa. Hariot http://www.digitalbookindex.com/_search/search002a.asp?AUTHOR=Hariot, Thom

84. Marmot Library Network /Marmot Mark Nearby SUBJECTS are Year Entries Harinxma Martinus Fictitious CharacterFiction 1997 1 Hariot Thomas 1560 1621 2 Hariot Thomas 1560 1621 Juvenile http://www.millennium.marmot.org:90/kids/10,376/search/dHaring, Keith./dharing k

WORD AUTHOR TITLE SUBJECT Adams State College Aspen School District Basalt Regional Library District Colorado Mountain College Durango Public Library Durango Public Library Juvenile Eagle Valley Library District Eagle Valley Library Juvenile Garfield County Public Library Garfield County Public Library Juvenile Gunnison County Public Library Gunnison Public Library, Juvenile Collection Mesa County Public Library Mesa County Public Library, Juvenile Collection Mesa Valley School District 51 Mesa Valley School District 51 Elementary Schools Mesa State College Pitkin County Library Pitkin County Library, Juvenile Collection Plateau Valley School Plateau Valley School, Elementary Southwest Library Services Steamboat Springs Community Libraries Steamboat Springs Juvenile Collection Summit County Public Library Summit County Library, Juvenile Collection Wilkinson Public Library Wilkinson Public Library, Juvenile Vail Library Basalt Regional Library, Juvenile Collection ASD Elementary School ASD Middle School Lib. ASD High School Library GCP Carbondale Branch GCP Glenwood Branch GCP New Castle Branch GCP Parachute Branch GCP Rifle Branch GCP Silt Branch Grand County Grand County Juvenile SD51 Appleton Elementary SD51 Bookcliff Middle Sch SD51 Broadway Elementary SD51 Central High School SD51 Chatfield Elementary SD51 Clifton Elementary SD51 Columbine Elementary SD51 Dos Rios Elementary SD51 East Middle School SD51 Fruita High School SD51 Fruita Middle School SD51 Fruitvale Elementary

85. Waukegan Public Library /All Locations John P John Peabody See Harrington John Peabody 1 Harrington Michael 19282000 1 Harriot Thomas 1560 1621 See Hariot Thomas 1560 1621 1 Harris http://catalog.waukeganpl.org:90/kids/0,1899,1953,2112/search/dHarrington, Honor

86. UC San Diego /All Locations Mark Nearby AUTHORS are Medium Year Harriot Thomas 1560 1621 See Hariot Thomas1560 1621 Harriott Clara Morris 1848 1925 See Morris Clara 1848 1925 http://roger.ucsd.edu:5702/search/aHarris, Emmylou./aharris emmylou prf/-5,-1,0,

Hours RenewItems/View Your Record AUTHOR TITLE SUBJECT KEYWORD Slide Collection All collections except Slides View Entire Collection Mark Nearby AUTHORS are: Medium Year Harris Elree I A Gallery Of Her Own : An Annotated Bibliography Of Women In Victorian Painting /Elree I. Harris, Shirley R. Scott AAL Harris Elwyn Recommended Strategy For The Army's Role In Space /Elwyn Harris ... [Et Al.] SSH Harris Elwyn D 1933 The National Aerospace Plane : Cost Considerations For The Follow-On Vehicle /Elwyn D. Harris SSH National Aerospace Plane (NASP) : Development Issues For The Follow-On Vehicle : Executive Summary /B.W. Augenstein, E.D. Harris, With J. Aroesty ... [Et Al.] SSH Harris Emerson Pitt 1853 Co-Operation, The Hope Of The Consumer, /by Emerson P. Harris...Assisted By Edgar Swan Wiers And Florence Harris SSH Harris Emily SIO Harris Emily Katharine 1921 A Gypsy Sold Me Heather /Emily Katharine Harris SSH A Gypsy Sold Me Heather /Emily Katharine Harris SPEC Saintly Milk To Better Wine : Poems /by Emily Katharine Harris SPEC Walk Chant /by Emily K. Harris

87. Sixteen Century Literature Elizabeth I (15331603). Fulke Greville, Lord Brooke (1554-1628). ThomasHariot (1560-1621). Richard Hooker (1554-1600). Richard Hooker's Works. http://home.fuse.net/wiederhold/sixteenth.htm

Sixteenth Century Literature The links below deal with sixteenth century British authors and their works. Please contact me if you know of any other links that would add value to this page. Comments and suggestions are also appreciated. Happy reading! Thomas Campion (1567-1620) Samuel Daniel (1562-1619) Selected Poetry of Samuel Daniel (1563?-1619) Sir John Davies (1569-1626) ... Sir Thomas Wyatt, the Elder (1503-1542) If you find that any of the above links are broken (invalid) please e-mail me at the address below and I will attempt to rectify the situation. I hope this site has proved useful to you. Please e-mail me with any comments or suggestions. If you have comments or suggestions,email me at wiederhold@fuse.net

88. ÖTEBERI Uppowoc. Thomas HARRIOT (1560 1621). “Uppowoc” denilen kendi kendineyetisen bir bitki var. Kizilderililer arasinda kullanim http://www.oteberi.com/dumanalti/harriot.html

89. Aref - Balcão De Referência Virtual | Tema: Matemática / Ciências Naturais: Translate this page Última actualização em 28-Jan-2002 -. http://aref.bn.pt/referencia/matematica_cnaturais/astronomia.html

28-Jan-2002 : Astronomia : ASTRONOMIA Generalidades Antarctic Search for Meteorites - ANSMET Àryabhatíya of Àryabhata Astronomical Society of the Pacific (The) Astronomy.com sites relacionados. Astronomy Formulas Best of the Hubble Space Telescope (The) Site Blast from the Past Bright Supernovae Catalogue of Galactic Supernova Remnants (SNRs) CCD Images of Galaxies ... Constants and Equations Pages (The) Site Deep Impact Mission (NASA) Deep Skies Encyclopedia Astronautica Eric's Treasure Trove of Astronomy on-line Galaxy Catalog (The) Glossary of Satellite Terms Glossary of Solar Physics Graham Pattison's Telescope Formulas ... Space.com Site . Revista de astronomia. Trigonometry and Astronomy sites sobre astronomia do motor de busca Yahoo.

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