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Topic: Giovanni Battista della Porta

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	Giambattista della Porta - Wikipedia, the free encyclopedia
		Della Porta founded the Ostiosi (Men of Leisure) an early scientific society, a condition of membership being to demonstrate a new discovery in the natural sciences.
		The Academia Secretorum Naturae was suspected of dabbling in the Occult and Della Porta was summoned to Rome by Pope Paul V.
		In a later edition of his Natural Magic, Della Porta described a Camera obscura with a convex lens; though he was not the inventor of this technical refinement, the popularity of his work helped spread knowledge of the device.
	en.wikipedia.org /wiki/Giovanni_Battista_Della_Porta (468 words)

	"Natural Magick" Book Offerings 2 (Site not responding. Last check: 2007-10-29)
		Magiae Naturalis, the first book of Giovanni Battista della Porta (1535-1615), is also his best known work and the basis of his reputation.
		First edition of one of Porta's rarest works on the properties of air and all aspects of meteorology including chapters on earthquakes and hot springs, and also on the origins and effects of lightning.
		Baptistae Portae Neapolitani, Magiae Naturalis [...] In Quibus Scientiarum Naturalium divitiae, ; and deliciae demontrantur [...] Francofurti [Frankfurt] Apud Andreae Wecheli heredes, Claudium Marnium, and Ioann.
	members.tscnet.com /omard1/nmbooks2.html (435 words)

	"John Baptist Porta" - The Author and his Work
		Della Porta was denounced to Pope Paul V and called to Rome to explain the reports of witches' salves and necromantic arts.
		Della Porta's work was wide ranging and, having studied refraction in De refractione, optices parte (1593), he claimed to be the inventor of the telescope although he does not appear to have constructed one before Galileo.
		When practising medicine, Porta had many occasions to observe his patients, and to study their character and complexion; the results of this studious inquiry are laid down in his book Physiognomy, presenting a striking and convincing system, not to be lightly dismissed.
	homepages.tscnet.com /omard1/jportat3.html (5187 words)

	Giornale Nuovo: Della Porta
		Della Porta was a polymath who also wrote and published on such subjects as natural magic, cryptography, horticulture, optics, mnemonics, meteorology, physics, astrology, mathematics, and fortification.
		Della Porta sidestepped this prohibition and avoided a listing on the Index Auctorum et Librorum Prohibitorum by prefixing his work with a declaration that human features indicate only predispositions, and that it was up to ones individual conscience whether or not to follow ones nose, as it were.
		It is plausible that della Porta’s works could have influenced Browne, granted that the latter’s library contained several volumes of the former’s works.
	www.spamula.net /blog/archives/000264.html (373 words)

	List of cryptographers - Wikipedia, the free encyclopedia
		Leone Battista Alberti, polymath/universal genius, inventor of polyalphabetic substitution (see frequency analysis for the significance of this -- missed by most for a long time and 'dumbed down' in the Vigenère cipher), and what may have been the first mechanical encryption aid.
		Giovanni Battista della Porta, author of a seminal work on cryptanalysis.
		Julius Caesar, Roman general/politician/author/assassination victim, has the Caesar cipher is named after him, and a lost work on cryptography by Probus (probably Valerius Probus) is claimed to have covered his use of military cryptography in some detail.
	en.wikipedia.org /wiki/List_of_cryptographers (1667 words)

	Giambattista della Porta -- Encyclopædia Britannica
		also called Giovanni Battista Della Porta Italian natural philosopher whose experimental research in optics and other fields was undermined by his credulous preoccupation with magic and the miraculous.
		Della Porta founded the Accademia dei Segreti, which was later suppressed by the Inquisition, and in 1610 he took part in the reconstitution of the Accademia dei Lincei.
		The Italian scientist and writer Giambattista della Porta, late in the 16th century, demonstrated...
	www.britannica.com /eb/article-9060950?tocId=9060950 (693 words)

	[No title] (Site not responding. Last check: 2007-10-29)
		In the first edition of his Magiae Naturalis, he specified that a conical hole be installed in the shutter of a darkened room and that the image be shown on a white screen.
		He said that the image would appear upside down and reversed from left to right, and that the image size would be proportional to the distance from the hole to the viewing screen—all of which are equally valid observations for the cameras we use today.
		Porta recommended that the camera obscura image be used as a guide for drawing and then went on to invent a method for producing an erect image using lenses and curved mirrors.
	www.olinda.com /Art/Beginnings/cameratimeline.htm (363 words)

	Carlos Jurado
		It was Giovanni Battista Della Porta who, years later, made the first camera obscura to have lenses and which sure enough by then had the function that Da Vinci had predicted.
		Della Porta says that it is useful...." so that anyone who is ignorant of painting can draw any object with a pen...."
		Della Porta's camera was by now a photographic camera in the making, as it had precision lenses and mirrors to reinvert the image.
	www.zonezero.com /exposiciones/fotografos/jurado/libro/pag8.html (1499 words)

	The Science Bookstore - Chronology (Site not responding. Last check: 2007-10-29)
		This precedes by some time those who were thought to have described the instrument first--Roger Bacon, Alberi, Leonardo, and della Porta.
		Appears to be the first to describe the use of a biconvex lens in conjunction with the camera obscura in his encyclodpedia "De subtilitate".
		This comes almost a decade before what is generally thought to have been the first mention of this in Giovanni Battista della Porta's "Magiae naturalis" of 1558.
	www.thesciencebookstore.com /chron.asp?searchstring=della+Porta (164 words)

	artnet.com: Resource Library: Porta, della: (5) Giovanni Battista della Porta (Site not responding. Last check: 2007-10-29)
		Giovanni Battista’s first documented commission (1567) was for ten stuccoed figures of nymphs for the Oval Fountain in the park of the Villa d’Este, Tivoli, which he was to execute following the designs of Pirro Ligorio.
		Giovanni Battista contributed the sibyls, which combine the style of antique robed figures with that of (3) Guglielmo della Porta’s female allegories from the tomb of Paul III.
		Giovanni Battista also restored antique sculptures and was active as an art dealer.
	www.artnet.com /library/06/0687/T068781.asp (271 words)

	Giordano Bruno (1548-1600) (Site not responding. Last check: 2007-10-29)
		Filippo Bruno was born in Nola, near Naples, the son of Giovanni Bruno, a soldier, and Fraulissa Savolino.
		His exceptional expertise in the art of memory brought him to the attention of patrons, and he was brought to Rome to demonstrate his abilities to the Pope.
		During this period he may also have come under the influence of Giovanni Battista Della Porta, a Neapolitan polymath who published an important book on natural magic.
	cnx.rice.edu /content/m11935/1.3 (624 words)

	Adventures in CyberSound: The Camera Obscura
		Porta popularized the camera obscura, which was instantly in use with astronomers: Kepler, solar observations, 1600, including the transit of Mercury in 1606; Fabricius, sunspots, 1611.
		The Italian scientist and writer Giambattista della Porta, late in the 16th century, demonstrated and described in detail the use of a camera obscura with a lens.
		Giovanni Battista Della Porta (1538-1615), gave elaborate details in physics, alchemy, astronomy, magic, cooking, perfumes, toiletry and optics in his Magiae Naturalis Libri (III, vol.4, Porta, Naples, Italy, 1558).
	www.acmi.net.au /AIC/CAMERA_OBSCURA.html (6727 words)

	artnet.com: Resource Library: Porta, della: (6) Tomaso della Porta (Site not responding. Last check: 2007-10-29)
		Apart from the works he carried out jointly with his brother Giovanni Battista, Tomaso made two seated marble angels and gable-figures (1580) for the chapel of St Gregory in St Peter’s, Rome.
		Stylistically he was strongly influenced by Michelangelo and Guglielmo della Porta.
		Like his brother Giovanni Battista, Tomaso was also active as a dealer in antique sculpture.
	www.artnet.com /library/06/0687/T068782.asp (220 words)

	A History of Photography, by Robert Leggat: CAMERA OBSCURA
		In the mid sixteenth century Giovanni Battista della Porta (1538-1615) published what is believed to be the first account of the possibilities as an aid to drawing.
		It is said that he made a huge "camera" in which he seated his guests, having arranged for a group of actors to perform outside so that the visitors could observe the images on the wall.
		Several are said to have used them; these include Giovanni Canale - better known as Canaletto (1697- 1768), Vermeer (1632-1675), Joshua Reynolds (1723-1792), and Paul Sandby (1725-1809), a founding member of the Royal Academy.
	www.rleggat.com /photohistory/history/cameraob.htm (843 words)

	DELLA PORTA - LoveToKnow Article on DELLA PORTA (Site not responding. Last check: 2007-10-29)
		DELLA PORTA - LoveToKnow Article on DELLA PORTA
		Italian natural philosopher, was born of a noble and ancient family at Naples about the year 1538.
		To properly cite this DELLA PORTA article in your work, copy the complete reference below:
	81.1911encyclopedia.org /D/DE/DELLA_PORTA.htm (208 words)

	Camera Obscura (Site not responding. Last check: 2007-10-29)
		- The camera obscura became general knowledge in 1558 with a publication Natural Magic by Giovanni Battista della Porta.
		Porta was the first to suggest the use of the camera obscura as a drawing tool for obtaining realistic depictions of perspective space.
		Porta was also the first to incorporate a concave mirror to reflect the lens image onto a wall creating a "right-side-up" image.
	www.homepage.montana.edu /~photohst/mta303/camera-obscura.html (482 words)

	DELLA PORTA, GIOVANNI BATTISTA (c. 1538—1615) - Online Information article about DELLA PORTA, GIOVANNI BATTISTA (c. ...
		1538—1615) - Online Information article about DELLA PORTA, GIOVANNI BATTISTA (c.
		End of Article: DELLA PORTA, GIOVANNI BATTISTA (c.
		Highlight the code below, right click, and select "copy." Then paste it into your website, email, or other HTML.
	encyclopedia.jrank.org /DAH_DEM/DELLA_PORTA_GIOVANNI_BATTISTA_c.html (423 words)

	cryptography
		Royalty, military commanders and conspirators have sent coded messages to colleagues for all nature of purposes.
		The Italian Giovanni Battista della Porta in the 16th and early 17th centuries developed an intricate code based on 12 alphabets.
		About the same time, Blaise de Vigenère of France created a table cypher based on 26 alphabets.
	www.hornpipe.com /ba/ba8c.htm (394 words)

	Jon Grepstad - Pinhole Photography (Site not responding. Last check: 2007-10-29)
		Two years later, after careful consideration, Pope Gregory XIII corrected the Julian calendar by 10 days, thus creating the Gregorian calendar (Renner 1995:7).
		Giovanni Battista della Porta (1538–1615), a scientist from Naples, was long regarded as the inventor of the camera obscura because of his description of the pinhole (lensless) camera obscura in the first edition of his
		His description has received much publicity, as did his camera obscura shows, but he was by no means the inventor.
	home.online.no /~gjon/pinhole.htm (6907 words)

	The Illustrated History of Photography
		Our illustrated History of Photography section is self guided slide show.
		Italian Scientist Giovanni Battista Della Porta suggested in his “Magiae Naturalis”, the applications to portraiture, landscapes, and the copying of other paintings.
		He details specified construction, that a conical hole be installed in the shutter of a darkened room and that the image would appear upside down and reversed from left to right.
	www.historiccamera.com /history1/photo_history1558.html (101 words)

	[No title]
		0520048504 : The House by the Medlar Tree : Verga, Giovanni
		0520049284 : Operette Morali: Essays and Dialogues : Leopardi, Giacomo; Cecchetti, Giovanni
		0520063287 : Giovanni and Lusanna: Love and Marriage in Renaissance France : Brucker, Gene A. Holy Feast and Holy Fast: The Religious Significance of Food to Medieval Women : Bynum, Caroline Walker
	www.ecampus.com /isbnbrowser2.asp?isbnstart=0520 (13392 words)

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