Retrato de Jorge Juan y Santacilia
Retrato de Jorge Juan y Santacilia
Pedro NuГ±ez
Area of right angle trapezoid直角梯形.面积
Area calculation
Detail of a scene in the bowl of the letter 'P' with a woman with a set-square and dividers; using a compass to measure distances on a diagram. In her left hand she holds a square, an implement for testing or drawing right angles. She is watched by a group of students. In the Middle Ages, it is unusual to see women represented as teachers, in particular when the students appear to be monks. She is most likely the personification of Geometry, based on Martianus Capella's famous book De Nuptiis Philologiae et Mercurii, [5th c.] a standard source for allegorical imagery of the seven liberal arts. Illustration at the beginning of Euclid's Elementa, in the translation attributed to Adelard of Bath.
The english Mathematician William Oughtred (1574-1660)
v.riccati.jpg
Picture of Isaac Todhunter
Tables de Logarithmes
Area of triangle
直角梯形面积 Area of trapezoid
Area of trapezoid жўЇеЅўйќўз§Ї
Stevin, Dutch scientist, decimal fraction notation3
Stevin, Dutch scientist, book De Thiende, page 13
Problem 17, chapter 9,Jiuzhang suanshu.《九章算术》第九卷勾股第十七�：
A Japanese soroban. The rightmost 10 columns are showing the number 1234567890.
Sea Island survey diagram 窥望海岛之图, first written of by the Chinese mathematician Liu Hui during the Three Kingdoms era (220–280 CE).
Salamis Tablet: oldest abacus from 300 BC found 1846 at the island of Salamis, Greece
This is a scan of a work published originally in 1613 (François d'Aiguillon
Area of inscribed regular dodecagon е†…жЋҐж­ЈеЌЃдєЊиѕ№еЅўйќўз§Ї=3R
quaternion_plague_on_broom_bridge.jpg
In case this is not legally possible: I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.
Perugia, the Fontana Maggiore (Main Fountain), sculpted after 1275 by Nicola Pisano and Giovanni Pisano. The Seven Liberal arts: Geometria et Musica. Picture by Giovanni Dall'Orto, August 5, 2006.
In case this is not legally possible: I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.
Microcosmi Physicomathematici by Francesco Eschinardi, italian jesuit and mathematician
Microcosmi Physicomathematici by Francesco Eschinardi, italian jesuit and mathematician
Microcosmi Physicomathematici by Francesco Eschinardi, italian jesuit and mathematician
Microcosmi Physicomathematici by Francesco Eschinardi, italian jesuit and mathematician
moltiplicazione_araba.jpg
Diagram of Liu Hui's Pi inequality
Lettre de Frobenius Г  Dedekind, fondatrice de la thГ©orie des reprГ©sentations des groupes
ReprГ©sentation du livre de mathГ©matiques chinoises : Les neuf chapitres
Image formation of thin lensи–„йЂЏй•њж?ђеѓЏ
ksiegaszkocka2.jpg
ksiegaszkocka1.jpg
Reproduction of a page of Ibn Sahl's manuscript showing his discovery of the law of refraction (from Rashed, 1990). The original (ca. 984) is public domain.
A collage of several images from Commons. See their licenses (I will add them soon).
GrГіb WЕ‚adysЕ‚awa ЕљlebodziЕ„skiego; Cmentarz Ељw Rodziny, WrocЕ‚aw
Find the side of a square in a right angle triangleе‹ѕи‚Ўе®№ж–№е‡ дЅ•и§Ј
Cover of the book
Table 2 from en:Emmy Noether's dissertation. A table of invariants of ternary biquadratic forms.
Table 1 from en:Emmy Noether's dissertation. A table of invariants of ternary biquadratic forms.
de_la_perspective_en_peinture.jpg
couda_e-turin.jpg
couda_e-turin-scha_ma.jpg
Picture of William Kingdon Clifford, the mathematician
Picture of William Kingdon Clifford, the mathematician
This applies to the United States, Australia, the European Union and those countries with a copyright term of life of the author plus 70 years.
aritmetica_calandri_handschrift.06.jpg
aritmetica_calandri_handschrift.05.jpg
aritmetica_calandri_handschrift.02.jpg
Modern model of Babbage's Analytical Engine
This applies to the United States, Australia, the European Union and those countries with a copyright term of life of the author plus 70 years.
16th_century_arabic_magic_square.jpg
This applies to the United States, Australia, the European Union and those countries with a copyright term of life of the author plus 70 years.
Pehr Wargentins födelsenotis i födelseboken
Kungl. Vetenskapsakademiens handlingar, volym 16, ГҐr 1755
Kungl. Vetenskapsakademiens handlingar, volym 16, ГҐr 1755
Kungl. Vetenskapsakademiens handlingar, volym 16, ГҐr 1755
Kungl. Vetenskapsakademiens handlingar, volym 16, ГҐr 1755
Kungl. Vetenskapsakademiens handlingar, volym 16, ГҐr 1755
Kungl. Vetenskapsakademiens handlingar, volym 16, ГҐr 1755
Kungl. Vetenskapsakademiens handlingar, volym 16, ГҐr 1755
Kungl. Vetenskapsakademiens handlingar, volym 16, ГҐr 1755
Kungl. Vetenskapsakademiens handlingar, volym 16, ГҐr 1755
Kungl. Vetenskapsakademiens handlingar, volym 16, ГҐr 1755
Leonardo da Vinci's Vitruvian Man.
Original map made by John Snow in 1854. Cholera cases are highlighted in black.
Pie charts from Playfair's
Example of polar area diagram by w:Florence Nightingale (1820–1910).
Minard’s map of French wine exports for 1864
a postulated interior of the Duck of Vaucanson (1738-1739) by an American observer.
Print shows the outline of 42 states and Indian Territory, a Civil War battle scene, and Liberty holding U.S. flag and sword riding on the back of an eagle, Lincoln and his cabinet (the secretaries linked to images of the Army, Navy, Treasury, Interior, P.O. Dept., and State Department) representing the
Professions des convulsionnaires arrГЄtГ©s Г  Paris au 18e siГЁcle
Photo Missa 2009 Biblio 02
Portrait of French lawyer Jules LiГ©geois
Doctor Auguste LiГ©beault, standing (left) in his clinique in Nancy in 1873.
Picture JN MISSA
Elisabeth Roudinesco
carl_ransom_rogers.jpg
Expositio et quaestiones in Aristotelis De anima
vessillo_della_repubblica_ambrosiana__1447-1450_.jpg
In case this is not legally possible: I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.
nks218_008.jpg
Friendship bracelets - The Four Classical Elements
In case this is not legally possible: I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.
In case this is not legally possible: I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.
elemento_cla_sicos.jpg
cole_thomas_catskill_mountain_house_the_four_elements_1843-44.jpg
Goethe-Gymnasium, Berlin-Wilmersdorf Reliefs der Elemente an der UhlandstraГџe:
Goethe-Gymnasium, Berlin-Wilmersdorf Reliefs der Elemente an der UhlandstraГџe:
Goethe-Gymnasium, Berlin-Wilmersdorf Reliefs der Elemente an der UhlandstraГџe:
Goethe-Gymnasium, Berlin-Wilmersdorf Reliefs der Elemente an der UhlandstraГџe:
Louis Finson, Allegory of the Four Elements 1611 Oil on canvas, 179 x 170 cm Private collection.
winteredover.jpg
Walter Harper was the first man to set foot on the summit of Denali. (Mt. McKinley) He was with the expedition of Hudson Stuck.
Plate entitled
vitarelles_passage_noel.jpg
Vibroseis Vehicle in Munich during an exploration for geothermal power
Lieutenant George Tyson with survivors of the USS Polaris Arctic Expedition
tangra-logo.jpg
survey-mission.jpg
Wall plaque erected in memory of Sir Harry Johnston, GCMG, KCB, DSc, in the church of St Nicholas, Poling, West Sussex. Designed and cut in Perpetua typeface by Eric Gill, Arts and Crafts Sculptor and typeface designer.
Reproduction ID: G4254
Artist sketch of ship on the Columbia River (Wikipedia en InglГ©s)
Photograph of Rodgers Harbor Camp, Wrangel Island, one of the camps used by the stranded Karluk party, 1914
Cutaway diagram of Shackleton's ship
Plaque at the summit of Petermann Island Antarctica. Lists crew members of 1908-1910 Charcot expedition on the Pourquoi pas IV.
piloto_pardo_361a.jpeg
The successful explorers at the South Pole.
Meeting the Esquimaux
Percorso della spedizione Overland 1.
louis_brusset_tourniol.jpg
levski-north.jpg
Let’s go exploring in Derbyshire
Letters patent for a voyage to discover new lands granted to en:John Cabot and his three sons by the king of en:England, Henry VII, at Westminster on en:March 5, en:1496
hut.sketch.jpg
English: Image of Sir John Franklin statue in Spilsby, Lincolnshire, England. Photo circa 1880, unknown photographer. Original photo currently held by State Library of Tasmania. Image source: http://images.statelibrary.tas.gov.au/Fullimage.asp?Letter=S&Title=Sir+John+Franklin's+statue%2C+Spilsbury%2C+Lincolnshire&ID=AUTAS001126073261
fr:Francis Dhanis
Tom Crean (top) with Alf Cheetham, aboard the Endurance, 1914.
Tom Crean and the pony
taracarte20072008.jpg
An engraving of Captain Sidney O. Budington
Engraving of Dr. Emil Bessels
Benjamin Stickney portrait
Las Balsas raft at Ballina Maritime Museum. The sail is a replica of the original Salvador Dali design.
Surviving (composite) raft from the 1973 Las Balsas expedition. The raft was salvaged and reconstructed from the remains of the two rafts that beached at Ballina (NSW, Australia) following their expedition across the Pacific (the third raft drifted further south once the crew were recovered and was eventually sunk). The raft is now an exhibit at the Ballina Maritime Museum.
adolphus_greely_men_memorial.jpg
Irving Fisher. Cropped from LOC photo, record for which appears below.
sterilization_states.jpg
This picture was photographed by Doug Moore at the Colorado Springs shows in 2007. It's shows a Silky Terrier getting ready to be presented by its handler.
passing_of_the_great_race_-_map_3.jpg
passing_of_the_great_race_-_map_2.jpg
passing_of_the_great_race_-_map_1.jpg
madison_grant.jpg
A blue great dane being stacked at a dog show.
Pamphlet of the Human Betterment Foundation titled
eugenics_quarterly_to_social_biology.jpg
criminal_brains.jpg
charles_davenport_1921.jpg
anthropometry_exhibit.jpg
Alpine (Heinrich Kiepert)
Hermann Boehm (1884-1962) at the Nuremberg Trials. Boehm was a German professor of eugenics, who was Ordinarius fГјr Rassehygiene in GieГџen from 1943-45. This photograph of Boehm as an interned witness was taken by US Army photographers on behalf of the Office of Chief of Counsel for War Crimes (OCCWC) during Nuremberg Trial I (Doctors' Trial / Г„rzte-Prozess). His affidavit concerning the administration of the euthanasia program was taken during January - February 1947.
Agnes Bluhm (1862-1943), German gynecologist and eugenicist, in 1886
libr0328.jpg
fotothek_df_tg_0007320_metereologie___gewitter___blitz___donner___regen.jpg
fotothek_df_tg_0007319_metereologie___gewitter___blitz___donner.jpg
fotothek_df_tg_0007318_metereologie___gewitter___blitz___donner.jpg
fotothek_df_tg_0007317_mythologie___metereologie___aberglaube.jpg
fotothek_df_tg_0007316_metereologie___wind___tornado.jpg
fotothek_df_tg_0007315_metereologie___wind___tornado___schiff.jpg
fotothek_df_tg_0007314_metereologie___wind___wolke.jpg
fotothek_df_tg_0007313_mythologie___ma_rchen.jpg
fotothek_df_tg_0007312_metereologie___aberglaube.jpg
fotothek_df_tg_0007311_metereologie___aberglaube.jpg
fotothek_df_tg_0007310_metereologie___aberglaube.jpg
fotothek_df_tg_0007309_mythologie___kriegskunde.jpg
fotothek_df_tg_0007308_landwirtschaft___gefla_gelzucht.jpg
fotothek_df_tg_0007307_winter___ski___schlitten.jpg
fotothek_df_tg_0007306_mythologie___ma_rchen.jpg
fotothek_df_tg_0007305_mythologie___ma_rchen.jpg
fotothek_df_tg_0007304_mythologie___ma_rchen.jpg
fotothek_df_tg_0007303_mythologie___ma_rchen.jpg
fotothek_df_tg_0007302_mythologie___ma_rchen.jpg
fotothek_df_tg_0007301_mythologie___leuchterscheinung___ozean___wolke.jpg
fotothek_df_tg_0007300_mythologie___leuchterscheinung.jpg
fotothek_df_tg_0007299_astronomie___planet___ekliptik___sonne___meteorit.jpg
fotothek_df_tg_0007298_schall___megafon.jpg
fotothek_df_tg_0007297_architektur___geba_ude___innenhof___schall.jpg
fotothek_df_tg_0007296_polyhistorie___reisebeschreibung___trinkwasser.jpg
fotothek_df_tg_0007295_theosophie___architektur.jpg
fotothek_df_tg_0007294_polyhistorie___metereologie.jpg
Winchester Drive 70 MBytes
In case this is not legally possible: Shiru grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.
External ROM cartridge for Vector-06c home computer
A Soviet Vector-06C home computer from 1987.
External interface for PU-Joystick (Джойстик ПУ) for Vector-06c. Sold in Centre
Vintage computer at VCFE meeting in Germany
ultrasonic delay line from a color-TV-set (late 80s), delays the color signal for 64 microseconds
One design shared between Bill Gates, Paul Allen and Paul Gilbert.
Please provide a meaningful description of the media file.
Softlab1978-79 http://de.wikipedia.org/wiki/Maestro_I
roehren_pd.jpg
Display of Pravetz-16 computers, stored at optical laboratory in Technical University - Gabrovo, Bulgaria
Picture taken at Deutsches Museum fГјr Kommunikation on Jan 11, 2004, by JeLuF
northstar_horizon_z80_processor_board.jpg
NEC V20 microprocessor
nbsfirstscanimage.jpg
monitor_maszyna_do_pisania.jpg
monitor_dalekopis.jpg
mazovia_1016_pc.jpg
Softlab Maestro Keyboard 1978-79 http://de.wikipedia.org/wiki/Maestro_I credit: Museum of Information Technology at Arlington http://mit-a.com/fourphase.shtml
Softlab Maestro Keyboard 1978-79 http://de.wikipedia.org/wiki/Maestro_I credit: Arlington Museum of Information Technology http://amit-tx.org/fourphase.shtml
Memoria de toros
MOBDIC cutaway view
Photos of History of Science [1-200]
Photos of History of Science [201-400]
Photos of History of Science [401-600]




Photos offered at Free-Photos.Biz come from Wikimedia Commons and from other sources. The pictures are published under free licenses and can be used by you free of charge for commercial and non-commercial purposes.
See more at: here and here.If you want to be sure of the concrete free license of a picture - look for the same picture at commons.wikimedia.org and see the license conditions there - but remember not all pictures come from there.

Some photos portray identifiable persons alive or deceased recently. The use of images of living or recently deceased individuals is, in some jurisdictions, restricted by laws pertaining to personality rights, independent from their copyright status. Before using such photos, please ensure that you have the right to use them under the laws which apply in the circumstances of your intended use. You are solely responsible for ensuring that you do not infringe someone else's personality rights.
christian portal