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Science and Invention
Institutions and Achievements
16th-17th Century Institutions
• Anatomy theater– Bologna (late 15th century); Leiden (1593) – London (1557), Oxford (1623)
• Botanical garden– Padua (1545); Leiden (1577, 1601)– Oxford (1621); Edinburgh (1670s); Chelsea (1673)
• Public natural history museum– Aldrovani, Bologna (1601)– Ashmolean, Oxford (1683)
Anatomical Theater, Leiden 1609
Inigo Jones Barber Surgeons Theatre 1636
Gustavium, Uppsala, 1662
Hooke – Royal College of Physicians (1673-77)
Cutlerian Anatomical Theatre, Warwick Lane, LondonRobert Hooke ~1679
Experimental Medicine
Blood Circulation Harvey (1578-1657) De Motu Cordis showed roles of arteries and veins (but did not observe capillaries)Materialist view of human physiology
PharmacologyNew medicines from new worlds. Ability to use alchemical tools such as distillation to extract components.
Transfusion
1628 Giovanni Colle (1558-1631), Professor of Medicine at Padua, suggested use to prolong life1654 Francesco Folli (1624-1685), a physician of Florence claimed to perform an experiment using transfusion1656 Christopher Wren injected wine and beer into the veins of a dog
Maluf, Noble Suydam R. "History of Blood Transfusion The Use of Blood from Antiquity Through the Eighteenth Century." Journal of the history of medicine and allied sciences 9.1 (1954): 59-107.
Transfusion
1663 Timothy Clarke, physician to Charles II transfused blood between two dogs; 1665 Repeated by Dr. Wilkins1665 Richard Lower reported direct transfer between dogs using silver tubes to connect the carotid artery of an animal with the jugular vein of another.
Transfusion−HumansQuestions about inter-species transfer“ “ “ Effects on behaviorUse of sheep blood to make a man more docileReaction to such a transfusion in France led to prohibition in France and discrediting in England
Oxford Botanical Garden
• Medicinal garden• Planted for “the glorification
of God” and “for the furtherance of learning.”
• New discoveries – impetus for natural history studies
• Jacob Bobart, first curator– Unpaid and earned income by
selling produce 1645 English Yew
Chelsea Physic Garden
InstitutionsExperimentation and Communication
• 1579 Gresham College• 1660 Royal Society• 1673 Christ's Hospital Mathematical School• 1675 Royal Observatory, Greenwich
Gresham College
• Money left to City of London• Free public lectures• Professorships of Astronomy, Divinity,
Geometry, Law, Music, Physic and Rhetoric.
Gresham – Original Grounds
Observatory
Physic Professor Laboratory
Natural History Collections
• Individuals • Royal Society collection• Tradescant collection– Collected in Virginia– Keeper of his Majesty's
Gardens, Vines, and Silkworms
– Opened to public for a fee
Tradescant Collection
• Garden of foreign plants• Birds, reptiles, mammals, stones, shells, a
mummy’s hand• A small piece of wood from the cross of Christ• Pictures from the church of S. Sophia in
Constantinople copied by a Jew into a book• The passion of Christ carved on a plumstone
Retaining the Collection
Catalog produced with help from Elias Ashmole1659 Bequeathed to Ashmole with his wife to benefit during her lifetimeChancery prevents sale1678 Ashmole gives to Oxford w. a building
Hawking glove of Henry VIII
Russian Bead Calculator
Rhinohorncup
Science Societies
1603 Accademia dei Lincei (Academy of Lynxes), Rome, founded by Duke Frederico Cesi was the first that appears to have published any proceedings.1660 The Royal Society, London
Invisible College for the promoting of Physico-Mathematical Experimental Learning
1666 Académie des Sciences, Paris
Samuel Hartlib (1600-62) Intelligencer
• An agent for the agent for the dissemination of Science news, books, and manuscripts
• Advocate for an ideal institution of learning (Bacon New Atlantis; Hartlib Macaria)
• The “Hartlib circle,” a group of enthusiasts whose ideas were circulated through copies of letters and manuscripts
DNB
Royal Society for the Improvement of Natural Knowledge
1645 Discussion groups begin; split into Oxford and London groups1660 Formal meetings at Gresham College
No profitable thing shall seem too mean for consideration, seeing that they have some amongst them, whose life is employ’d about little things, as well as great.By this they have broken down the partition wall…for all conditions of men to engage in these Studies
1662 Royal charter
Contributions
• Experiments tried at home or laboratories• Experiments performed at meetings– In principle, all levels of society – In practice, merchants excluded because of issues of
trade secrets and disdain of profit motives– Skilled technicians employed but only acknowledged
when mistakes occurred • Publication of results– Transactions– Works published by the Society’s printers
Members
Include foreign and colonial members who were exempted from dues and attendanceColonial members from 13 colonies in the 17th C.– John Winthrop (1662)– William Penn (1681)– William Byrd (1696)
In addition there were correspondents from the colonies in the eighteenth century
William Brouncker, first president
• An Irish mathematician who worked on continued fractions and calculated logarithms by infinite series.
Publication1/1665 Journal des sçavans (later Journal des savants), Paris, est. by Denis de Sallo3/1665 TransactionsProcedures worked out in letters from the first editor, Oldenburg• Submission date for precedence• Open dissemination of research
Henry Oldenburg (1609-1697)
• Born in Bremen• Educated in Bremen,
Utrecht and Oxford• Secretary of the Royal
Society with fluency in English, Dutch, French, German, Italian and Latin
• Published on spec.
• Translated and published letters from continent
• Sought comments
Some leading contributors
Isaac Newton, Robert Boyle, Christopher Wren, and Robert HookeAstronomers: Johannes Hevelius (lunar topography), Giovanni Domenico Cassini (moons of Saturn, distance to Mars) and Adrien Auzout,Microscopy: Antony van Leeuwenhoek,Mathematicians: Christiaan Huygens (wave theory of light) and Gottfried Leibnitz (calculus, relativity of space and time)
Issue 1
Royal Mathematical School at Christ's Hospital School
• Fostered by Samuel Pepys• Inadequate navigational skills of naval officers• Mathematical basis of navigation
Royal Observatory, Flamsteed House, 1676
Octagon Room at the Royal Observatory, c.1676
Observational Astronomy
• William Gascoigne, minor gentry• Jeremiah Horrocks, teacher• William Crabtree, cloth dealer
William Gascoigne (1612-44) • Education, unknown• Add eyepiece micrometer to
telescope to make precise measurements
• Worked with Horrocks and Crabtree• Ideas later used by Towneley and
Flamsteed• Killed at Marston Moor
Drawn by Robert Hooke –” A Description of an Instrument for Dividing a Foot into Many Thousand Parts, and Thereby Measuring the Diameters of Planets to a Great Exactness, &c. as It Was Promised,” Numb. 25. In: Philosophical Transactions, 11. November 1667, S. 541–556.
Findings using projected images
• 1637 Horrocks and Crabtree watch the dark edge of the Moon obscure the individual stars of the Pleiades and conclude that the stars were points of light and not disks
• 1638 Horrocks concluded lunar orbit is elliptical
• 1639 Observe transit of Venus– Calculate distance of sun – 59,600,000 miles
Chapman, Allan. "Jeremiah Horrocks, William Crabtree, and the Lancashire observations of the transit of Venus of 1639." Proceedings of the International Astronomical Union 2004.IAUC196 (2004): 3-26.
Reflecting Telescope
“An Accompt of a New Catadioptrical Telescope Invented by Mr. Newton, Fellow of the R. Society, and Professor of the Mathematiques in the University of Cambridge, 1672”
James GregoryOptica Promota 1663
Cassegrain
Great Comet of 1680
Great Comet (“Newton’s Comet”)
• Comets (?) observed by Flamsteed in 1680 and 1681– Predicted to be same comet; erroneously said to
be repulsed by the sun• Path explained by Newton; one comet in a
parabolic orbit (possibly elliptic)
Edmund Halley (1656-1742)
1675 Assistant to FlamsteedEncouraged and financed Newton’s publication of PrincipiaImproved diving bell and suitCalculated path of 1682 comet in 1705; predicted 1768 return2nd astronomer royal
Successes of Newton’s Gravitation
Philosophical Transactions, Vol. 19 (1695 - 1697), 445-457
To a Theory of Gravitation
• Ether pushing objects down• Flamsteed suggests magnetic attraction by sun• Inverse square law – who said what when?• Halley encourages Newton
NewtonPrincipia, 1st edition
Robert Boyle1660 New Experiments Physio-Mechanical, Touching the Spring of the Air and its Effects – 2nd edition has Boyle’s law
1661 The Sceptical Chymist . 1663 Some Considerations Touching the Usefulness of Experimental Natural Philosophy
“Luciferous and fructiferous” experiments
Uses - Mathematics
• Quadrants, Sectors, Astrolabes , Globes, Maps, • Lutes, Viols, Organs, and other musical
instruments • Applications in mechanical trades
Uses-Health
• Defense against diseases• Improvements in agriculture
Uses-Chemistry, Materials
• Refine gold and silver• Improve crops through inorganic supplements• Counterfeit marble• Writing without “blacking fingers” with ink
Papin Digester
Safety valve with pressure limited by weight, W
Papin Digester, version 2
Clocks
1656 Huygens, Pendulum clock~1670 William Clement– Anchor escapement– Tall case
Verge escapement
Tompion, 1675-78
Clockmakers
• 1631 Worshipful Company of Clockmakers given a royal charter on manufacture and sale
• Richard Towneley – deadbeat variation of anchor escapement
• Thomas Tompion – Pendulum clocks wound yearly
• Hooke – Balance springs
Use of Mortality Statistics to Calculate Annuities
• Improved on prior observations of William Petty
• Data from Breslau
Christopher Wren (1632–1723)
• Early work– Alphabet for the deaf– Pasteboard anatomical models for lectures– Device to make two copies of a document at one
time– Professor of astronomy, Oxford
Wren as Scientist
• First drawings made from microscope• Relief globe of the moon• Attempt to solve mathematical problems
posed by Pascal• 1661 Advised on repair of old St Paul's
Cathedral
1669 Surveyor of the King’s Works
Continued scientific work– Physiology of flies– Muscular action– Collisions of bodies– Machine to grind aspherical lenses– Rain gauge
Century of Inventions
Edward Somerset, 2nd Marquess of Worcester
Earliest Straight Slide Rule, 1654
Gunter’s scales, Described 1623
Aids to CalculationEverard, Excise officers’ slide rules, 1684
Oughtred, 1700
Marquess of WorcesterWater-Commanding Engine, Raglan CastleReported in 1663 to lift buckets of water 40’
Savery Engine(1827 drawing)
D boilerX condensing waterP condensing vesselVarious valves and connecting tubes• Uses vacuum and high pressure
steam to pump water• 1698 patent covers mines, mills,
drainage, water supply
Savery Engine
• DefectsLimited to a pumping height of ~20 feetWater mostly driven by atmospheric pressureInefficient as each stroke required recreating
steamSafety – strength of boilers